| Faculty of Engineering and Natural Sciences

Emre Erdem Faculty of Engineering and Natural Sciences Faculty Member (216) 483 9881 emreerdemsabanciunivedu

Personal Web

https://www.sabanciuniv.edu/rehber/KisiselBilgilerCV.php?dil=eng&sicil=00003233

Jobs

Faculty Member

Education

Habilitation Degree (June 2017) University of Freiburg:

Institute of Physical Chemistry, Freiburg Germany Thesis: Defect structures of nanoscale functional semiconductor materials probed by EPR spectroscopy

PhD in Physics (2001-2006) Leipzig University:

Faculty of Physics and Geoscience, International Physics Studies Program, Leipzig GermanyThesis: Size effects in ferroelectric nanoparticles

MSc in Physics (1999-2001) Leipzig University:

Faculty of Physics and Geoscience, International Physics Studies Program, Leipzig GermanyThesis: Preparation and Characterisation of Ferroelectric and Ferromagnetic Nanopowders and Polymeric Nanocomposites

BSc in Physics (1994-1998) Ankara University:

Faculty of Science, Department of Physics, Ankara Turkey Thesis: Plasma oscillations and Landau damping

Areas of Interest

Physics of Materials; Spectroscopy (EPR, Raman, Photoluminesence, Impedance); Physical Chemistry; Solid State Physics; Graphene; Carbon dots; Semiconductors; Nanoparticles and Nanocrystals; Ceramics; Powder processing; Phase transitions; Photovoltaics; Solar cells; Thermoelectrics; Supercapacitors, Li-ion batteries; Piezoelectric nanowires and nanogenerators; Wearable electronics; Energy harvesting and storage; Electrical vehicles; Microelectronic systems; Battery management systems; Robot arms, Materials for grippers; Thin film batteries; Power to X technologies; Potentiostat; Electrolyte; Electrode for batteries and supercapacitors; Renewable energy, Batteries for Electrical vehicle; Defect structures

Memberships

Editor-in-Chief (Experimental Results) Editorial Board Member (Nature Scientific Reports) Editorial Board Member (Turkish Journal of Physics) Associate Editor (International Journal of Applied Ceramic Technology)

Alaş, Melis Özge and Güngör, Ahmet and Aktürk, Merve and Erdem, Emre and Genç, Rükan (2024) "Unlocking the full potential of citric acid-synthesized carbon dots as a supercapacitor electrode material via surface functionalization", Nanoscale, Vol.16, No.2, 719-733 (SCI)

Altaf, Cigdem Tuc and Coskun, Ozlem and Kumtepe, Alihan and Rostas, Arpad Mihai and Iatsunskyi, Igor and Coy, Emerson and Erdem, Emre and Sankir, Mehmet and Sankir, Nurdan Demirci (2023) "Author Correction: Photo-supercapacitors based on nanoscaled ZnO (Scientific Reports, (2022), 12, 1, (11487), 10.1038/s41598-022-15180-z)", Scientific Reports, Vol.13, No.1 (SCI)

Avsar, Seda Gürgen and Repp, Sergej and Dietel, Lisa and Güngör, Ahmet and Weber, Stefan and Ocakoglu, Kasim and Nadupalli, Shankari and Erdem, Emre (2023) "Competition between charge transfer and energy transfer: influence of intrinsic defects in ZnO nanocrystals on rhodamine-B dye color signals", Physical Review B, Vol.108, No.24 (SCI)

Ammar, Ameen Uddin and Stan, Manuela and Popa, Adriana and Toloman, Dana and Macavei, Sergiu and Leostean, Cristian and Ciorita, Alexandra and Erdem, Emre and Rostas, Arpad Mihai (2023) "All-in-one supercapacitor devices based on nanosized Mn4+-doped WO3", Journal of Energy Storage, Vol.72 (SCI)

Aktürk, Merve and Kemal Gozuacik, Namik and Aleinawi, Mohamad and Rostas, Arpad Mihai and Alkoy, Sedat and Mensur, Ebru and Erdem, Emre (2023) "Elucidating the capacitive behavior of Gd-doped BNT-BKT-BT electrodes in All-in-One supercapacitor devices", Physica Scripta, Vol.98, No.10 (SCI)

Hroub, Abdalla and Aleinawi, Mohamad and Stefan, Maria and Mihet, Maria and Ciorita, Alexandra and Bakan Mısırlıoğlu, Feray and Erdem, Emre and Rostas, Arpad Mihai (2023) "Vanadium-doped magnesium oxide nanoparticles as electrodes in supercapacitor devices", Journal of Alloys and Compounds, Vol.958 (SCI)

Karagoz, Emine and Altaf, Cigdem Tuc and Yaman, Ecenaz and Yıldırım, İpek Deniz and Erdem, Emre and Celebi, Cem and Fidan, Mehmet and Sankir, Mehmet and Sankir, Nurdan Demirci (2023) "Flexible metal/semiconductor/metal type photodetectors based on manganese doped ZnO nanorods", Journal of Alloys and Compounds, Vol.959 (SCI)

Altaf, Cigdem Tuc and Colak, Tuluhan Olcayto and Rostas, Arpad Mihai and Mihet, Maria and Lazar, Mihaela Diana and Iatsunskyi, Igor and Coy, Emerson and Yıldırım, İpek Deniz and Bakan Mısırlıoğlu, Feray and Erdem, Emre and Sankir, Mehmet and Sankir, Nurdan Demirci (2023) "GO/ZnO-based all-solid-state photo-supercapacitors: effect of GO:ZnO ratio on composite properties and device performance", Journal of Energy Storage, Vol.68 (SCI)

Ammar, Ameen Uddin and Bakan Mısırlıoğlu, Feray and Aleinawi, Mohamad and Franzo, Giorgia and Condorelli, Guglielmo Guido and Yesilbag, Fatma Nur Tuzluca and Yesilbag, Yasar Ozkan and Mirabella, Salvo and Erdem, Emre (2023) "All-in-one supercapacitors with high performance enabled by Mn/Cu doped ZnO and MXene", Materials Research Bulletin, Vol.165 (SCI)

Karakaya, Merve and Erdem, Emre and Akdogan, Yasar and Adem, Umut (2023) "Effects of different precursors on the aging and electrocaloric properties of Mn-doped Ba0.95Sr0.05TiO3 ceramics", Journal of Materials Science: Materials in Electronics, Vol.34, No.27 (SCI)

Paksoy, Aybike and Aktürk, Merve and Arabi, Seyedehnegar and Erdem, Emre and Balcı-Çağıran, Özge (2023) "Synthesis and capacitive performance of ZrB2 and its composites as supercapacitor electrodes", Solid State Sciences, Vol.142 (SCI)

Altaf, Cigdem Tuc and Colak, Tuluhan Olcayto and Erdem, Emre and Unal, Ugur and Bakan Mısırlıoğlu, Feray and Condorelli, Guglielmo Guido and Sankir, Nurdan Demirci and Sankir, Mehmet (2023) "Disulfonated polyarylene ether sulfone membrane for graphitic carbon nitride/zinc oxide based photo-supercapacitors", Electrochimica Acta, Vol.456 (SCI)

Sadeghi, Ebrahim and Chamani, Sanaz and Erdem, Emre and Peighambardoust, Naeimeh Sadat and Aydemir, Umut (2023) "NiMo/CoMoO4 heterostructure with confined oxygen vacancy for active and durable alkaline hydrogen evolution reaction", ACS Applied Energy Materials, Vol.6, No.14, 7658-7671 (SCI)

Altaf, Cigdem Tuc and Rostas, Arpad Mihai and Mihet, Maria and Lazar, Mihaela Diana and Iatsunskyi, Igor and Coy, Emerson and Erdem, Emre and Sankir, Mehmet and Sankir, Nurdan Demirci (2023) "Erratum: Solar-assisted all-solid supercapacitors using composite nanostructures of ZnO nanowires with GO and rGO (Journal of Materials Chemistry C (2022) 10 (10748–10758) DOI: 10.1039/D2TC02114E)", Journal of Materials Chemistry C, Vol.11, No.20, 6761-6761 (SCI)

Akgül, Gökçen and Oskay, Kürşad Oğuz and Aktürk, Merve and Karamustafa, Ayşenur and Sözer, Sözer and Maden, Tuğba Bolat and Erdem, Emre (2023) "Electrochemical energy storage capacity of surface engineered renewable carbon derived from industrial tea waste by HNO3 and K2CO3", Surface Engineering and Applied Electrochemistry, Vol.59, No.2, 199-209 (ESCI)

Ammar, Ameen Uddin and Yıldırım, İpek Deniz and Aleinawi, Mohamad and Aktürk, Merve and Turhan, Nur Selin and Nadupalli, Shankari and Rostas, Arpad Mihai and Erdem, Emre (2023) "Multifrequency EPR spectroscopy study of Mn, Fe, and Cu doped nanocrystalline ZnO", Materials Research Bulletin, Vol.160 (SCI)

Ammar, Ameen Uddin and Stefan, Maria and Macavei, Sergiu Gabriel and Tripon, Septimiu and Pana, Ovidiu and Leostean, Cristian and Vlaicu, Ioana Dorina and Rostas, Arpad Mihai and Erdem, Emre (2023) "Characterization of defect structures in nanoscaled W-doped TiO2 tested as supercapacitor electrode materials", Journal of Materials Science: Materials in Electronics, Vol.34, No.2 (SCI)

Avcıoğlu, Suna and Aktürk, Merve and Erdem, Emre and Kaya, Figen and Kaya, Cengiz (2023) "Boron carbide as an electrode material: tailoring particle morphology to control capacitive behaviour", Materials, Vol.16, No.2 (SCI)

Güz, Seher and Aktürk, Merve and Göçmez, Hasan and Erdem, Emre (2022) "All-in-one electric double layer supercapacitors based on CH3NH3PbI3 perovskite electrodes", ACS Omega, Vol.7, No.50, 47306-47316 (SCI)

Karamustafa, Ayşenur and Sözer, Sözer and Oskay, Kürşad Oğuz and Aktürk, Merve and Erdem, Emre and Akgül, Gökçen (2022) "Improving the electrochemical energy storage capacity of the renewable carbon derived from industrial tea waste", Russian Journal of Electrochemistry, Vol.58, No.9, 844-854 (SCI)

Altaf, Çiğdem Tuc and Rostas, Arpad Mihai and Mihet, Maria and Lazar, Mihaela Diana and Iatsunskyi, Igor and Coy, Emerson and Erdem, Emre and Sankir, Mehmet and Sankir, Nurdan Demirci (2022) "Solar-assisted all-solid supercapacitors using composite nanostructures of ZnO nanowires with GO and rGO", Journal of Materials Chemistry C, Vol.10, No.29, 10748-10758 (SCI)

Altaf, Çiğdem Tuc and Coşkun, Özlem and Kumtepe, Alihan and Rostas, Arpad Mihai and Iatsunskyi, Igor and Coy, Emerson and Erdem, Emre and Sankir, Mehmet and Sankir, Nurdan Demirci (2022) "Photo-supercapacitors based on nanoscaled ZnO", Scientific Reports, Vol.12, No.1 (SCI)

Aktürk, Merve and Balcı-Çağıran, Özge and Erdem, Emre (2022) "EPR investigation of point defects in HfB2 and their roles in supercapacitor device performances", Applied Physics Letters, Vol.120, No.15 (SCI)

Aleinawi, Mohamad and Ammar, Ameen Uddin and Aktürk, Merve and Turhan, Nur Selin and Nadupalli, Shankari and Erdem, Emre (2022) "Spectroscopic probing of Mn-Doped ZnO nanowires synthesized via a microwave-assisted route", Journal of Physical Chemistry C, Vol.126, No.8, 4229-4240 (SCI)

Aktürk, Merve and Toufani, Maryam and Tufani, Ali and Erdem, Emre (2022) "ZnO and reduced graphene oxide electrodes for all-in-one supercapacitor devices", Nanoscale, Vol.14, No.8, 3269-3278 (SCI)

Balci, Özge and Aktürk, Merve and Ammar, Ameen Uddin and Kiraz, Kamil and Somer, Mehmet and Erdem, Emre (2021) "Defect-induced B4C electrodes for high energy density supercapacitor devices", Scientific Reports, Vol.11, No.1 (SCI)

Tuc Altaf, Cigdem and Abdullayeva, Nazrin and Coskun, Ozlem and Kumtepe, Alihan and Yıldırım, İpek Deniz and Erdem, Emre and Liu, Maochang and Bozbey, Ali and Agar, Ertan and Sankir, Mehmet and Sankir, Nurdan Demirci (2021) "Efficiency enhancement in photoelectrochemical water splitting: defect passivation and boosted charge transfer kinetics of zinc oxide nanostructures via chalcopyrite/chalcogenide mix sensitization", Physical Review Materials, Vol.5, No.12 (SCI)

Nadupalli, Shankari and Yan, Feng and Erdem, Emre (2021) "Low-temperature surface phase transitions in multiferroic BiFeO3 nanocrystals probed via electron paramagnetic resonance", Journal of Physical Chemistry C, Vol.125, No.44, 24596-24604 (SCI)

Salimkhani, Hamed and Erdem, Emre and Alkan Gürsel, Selmiye and Yürüm, Alp (2021) "Unveiling the presence of mixed oxidation states of Europium in Li7+δEuxLa3−δZr2−δO12−δ garnet and its impact on the Li-ion conductivity", Journal of the American Ceramic Society, Vol.104, No.8, 4257-4271 (SCI)

Yıldırım, İpek Deniz and Ammar, Ameen Uddin and Aktürk, Merve and Bakan, Feray and Erdem, Emre (2021) "Strategies to reach ultrahigh capacitance values for supercapacitors: materials design", Turkish Journal of Physics, Vol.45, No.4, 178-184 (ESCI)

Ghobadi Ulusoy, Gamze and Ghobadi, Amir and Demirtas, Merve and Buyuktemiz, Muhammed and Ozvural, Kubra and Akhuseyin, Elif and Erdem, Emre and Yaglioglu, Gül and Durgun, Engin and Dede, Yavuz and Ozbay, Ekmel and Karadas, Ferdi (2021) "Building an iron chromophore incorporating prussian blue analogue for photoelectrochemical water oxidation", Chemistry - A European Journal, Vol.27, No.35, 8966-8976 (SCI)

Ghobadi, T. Gamze Ulusoy and Ghobadi, Amir and Demirtas, Merve and Buyuktemiz, Muhammed and Ozvural, Kubra N. and Yildiz, Elif Akhuseyin and Erdem, Emre and Yaglioglu, H. Gul and Durgun, Engin and Dede, Yavuz and Ozbay, Ekmel and Karadas, Ferdi (2021) "Building an iron chromophore incorporating prussian blue analogue for photoelectrochemical water oxidation", Chemistry - A European Journal, Vol.27, No.35, 8890-8890 (SCI)

Erdem, Emre (2021) "Why P2X must be the part of the energy solution?", Environmental Progress and Sustainable Energy, Vol.40, No.3 (SCI)

Nadupalli, Shankari and Repp, Sergej and Weber, Stefan and Erdem, Emre (2021) "About defect phenomena in ZnO nanocrystals", Nanoscale, Vol.13, No.20, 9160-9171 (SCI)

Ammar, Ameen Uddin and Yıldırım, İpek Deniz and Bakan, Feray and Erdem, Emre (2021) "ZnO and MXenes as electrode materials for supercapacitor devices", Beilstein Journal of Nanotechnology, Vol.12, 49-57 (SCI)

Berksoy-Yavuz, Ayse and Mensur-Alkoy, Ebru and Erdem, Emre and Alkoy, Sedat (2020) "Electrical properties, EPR analyses and defect chemistry of Mn-doped 0.675PMN-0.325PT piezoceramics", Ceramics International, Vol.46, No.18, 28980-28986 (SCI)

Ebrahimi, Elnaz and Irfan, Muhammad and Shabani, Farzan and Kocak, Yusuf and Karakurt, Bartu and Erdem, Emre and Demir, Hilmi Volkan and Ozensoy, Emrah (2020) "Core-crown quantum nanoplatelets with favorable type-II heterojunctions boost charge separation and photocatalytic NO oxidation on TiO2", ChemCatChem, Vol.12, No.24, 6329-6343 (SCI)

Najib, Sumaiyah and Bakan, Feray and Abdullayeva, Nazrin and Bahariqushchi, Rahim and Kasap, Sibel and Franzò, Giorgia and Sankir, Mehmet and Demirci Sankir, Nurdan and Mirabella, Salvo and Erdem, Emre (2020) "Tailoring morphology to control defect structures in ZnO electrodes for high-performance supercapacitor devices", Nanoscale, Vol.12, No.30, 16162-16172 (SCI)

Hoffmann, Rudolf C. and Trapp, Maximilian and Erdem, Emre and Kratzer, Markus and Teichert, Christian and Kleebe, Hans-Joachim and Schneider, Jörg J. (2020) "Synthesis and assembly of zinc oxide microcrystals by a low-temperature dissolution-reprecipitation process: lessons learned about twin formation in heterogeneous reactions", Chemistry - A European Journal (SI), Vol.26, No.42, 9319-9329 (SCI)

Toufani, Maryam and Kasap, Sibel and Tufani, Ali and Bakan, Feray and Weber, Stefan and Erdem, Emre (2020) "Synergy of nano-ZnO and 3D-graphene foam electrodes for asymmetric supercapacitor devices", Nanoscale, Vol.12, No.24, 12790-12800 (SCI)

Tuncer, Mustafa and Bakan Mısırlıoğlu, Feray and Ansari Hamedani, Ali and Hayat Soytaş, Serap and Gocmez, Hasan and Erdem, Emre (2019) "Correction: Capacitive behaviour of nanocrystalline octacalcium phosphate (OCP) (Ca8H2(PO4)6·5H2O) as an electrode material for supercapacitors: Biosupercaps. (Nanoscale (2019) 11 (18375-18381) DOI: 10.1039/c9nr07108c)", Nanoscale, Vol.11, No.43, 21008-21008 (SCI)

Tuncer, Mustafa and Bakan Mısırlıoğlu, Feray and Gocmez, Hasan and Erdem, Emre (2019) "Capacitive behaviour of nanocrystalline octacalcium phosphate (OCP) (Ca8H2(PO4)6·5H2O) as an electrode material for supercapacitors: biosupercaps", Nanoscale, Vol.11, No.39, 18375-18381 (SCI)

Dybbert, Valentin and Fehr, Samuel Matthias and Klein, Florian and Schaadt, Achim and Hoffmann, Anke and Frei, Elias and Erdem, Emre and Ludwig, Thilo and Hillebrecht, Harald and Krossing, Ingo (2019) "Oxidative fluorination of Cu/ZnO methanol catalysts", Angewandte Chemie - International Edition, Vol.58, No.37, 12935-12939 (SCI)

Najib, Sumaiyah and Erdem, Emre (2019) "Current progress achieved in novel materials for supercapacitor electrodes: mini review", Nanoscale Advances, Vol.1, No.8, 2817-2827 (SCI)

Alas, Melis and Güngör, Ahmet and Genç, Rükan and Erdem, Emre (2019) "Feeling the power: robust supercapacitors from nanostructured conductive polymers fostered with Mn2+ and carbon dots", Nanoscale, Vol.11, No.27, 12804-12816 (SCI)

Kasap, Sibel and Kaya, İsmet İnönü and Repp, Sergej and Erdem, Emre (2019) "Superbat: battery-like supercapacitor utilized by graphene foam and zinc oxide (ZnO) electrodes induced by structural defects", Nanoscale Advances, Vol.1, No.7, 2586-2597 (SCI)

Bateni, Ali and Erdem, Emre and Hassler, Wolfgang and Somer, Mehmet (2019) "High-quality MgB2 nanocrystals synthesized by using modified amorphous nano-boron powders: study of defect structures and superconductivity properties", AIP Advances, Vol.9, No.4 (SCI)

Öztuna, Eylül and Ünal, Özlem and Erdem, Emre and Yağcı Acar, Havva and Ünal, Uğur (2019) "Layer-by-layer grown electrodes composed of cationic Fe3O4 nanoparticles and graphene oxide nanosheets for electrochemical energy storage devices", Journal of Physical Chemistry C, Vol.123, No.6, 3393-3401 (SCI)

K. Wissel, S. Dasgupta, A. Benes, R. Schoch, M. Bauer, R. Witte, A. D. Fortes, E. Erdem, J. Rohrer, O. Clemens, Developing intercalation based anode materials for fluoride-ion batteries: Topochemical reduction of Sr2TiO3F2 via a hydride based defluorination process, in press: J. Mater Chem. A (2018)
Ö. Ünal, R. Khodadust, E. G. Durmusoglu, E. Erdem, B. Yagci, E. Yurtsever, H. Yagci Acar, Discovery of an exceptionally fluorescence of polyethylenimine (PEI) when absorbed in situ on iron oxide nanocrystals, Macromolecular Chem. Phys. 219 (2018) 1700563
S. Repp, E. Harputlu, S. Gürgen, N. Kremer, M. Castellano, F. Emen, N. Pompe, J. Wörner, A. Hoffmann, R. Thomann, S. Weber, K. Ocakoglu, E. Erdem*, Synergetic effects of Fe3+ doped spinel Li4Ti5O12 nanoparticles on reduced graphene oxide for high surface electrode hybrid supercapacitors, Nanoscale 10 (2018) 1877-1884
E. Erdem*, Defect induced p-type conductivity in ZnO at high temperature: EPR spectroscopy Nanoscale 9 (2017) 10983-10986
R. Genc, M. Ö. Alas, E. Harputlu, S. Repp, N. Kremer, M. Castellano, S. G. Colak, K. Ocakoglu, E. Erdem*, Evaluation of multi-coloured flourescent carbon-dots for their use in high capacitance hybrid supercapacitor, Scientific Reports 7 (2017) 11222
S. Sanctis, N. Koslowski, R. Hoffmann, C. Guhl, E. Erdem, S. Weber, J. J. Schneider, Towards an understanding of thin film transistor performance in solution processed amorphous zinc-tin-oxide (ZTO) thin films, ACS Appl. Mater. & Interfaces 9 (2017) 21328-21337
J. Koruza, E. A. Patterson, J. Schultheiß, E. Erdem, W. Jo, J.-S Lee, J. Rödel Hardening behavior and highly enhanced mechanical quality factor in (K0.5Na0.5)NbO3-based ceramics, J. Eur. Ceram. Soc. 37 (2017) 2083-2089
S. Repp, S. Weber E. Erdem*, Defect evolution of non-stoichiometric ZnO quantum dots, J. Phys. Chem. C 120 (2016) 25124-25130
R. C. Hoffmann, S. Sanctis, E. Erdem, S. Weber, J. J. Schneider, ZnO nanoparticles from molecular single source precursors: Microwave-assisted synthesis, electrophoretic deposition and field-effect transistor properties at 250 °C J. Mater. Chem. C 4 (2016) 7345
A. Bateni, E. Erdem*, S. Repp, S. Weber, M.Somer, Al-doped MgB2 materials studied by EPR and Raman spectroscopy, Appl. Phys. Lett. 108 (2016) 201601
C. V. Pham, S. Repp, R. Thomann, M. Krueger, S. Weber, E. Erdem*, Charge transfer and surface defect healing within ZnO nanoparticle decorated graphene hybrid materials Nanoscale 8 (2016) 9682-9687
S. Yildirimcan, K. Ocakoglu, S. Erat, F. M. Emen, S. Repp, E. Erdem*, Hydrothermal synthesis and defect structures in ZnO nanopowder, RSC Advances 6 (2016) 39511-39521
T. Ruf, S. Repp, J. Urban, R.Thomann, E. Erdem*, Competing effects between intrinsic and extrinsic defects of pure and Mn-doped ZnO nanocrystals, J. Nanoparticle Research 18 (2016) 109
M. Blömker, E. Erdem, S. Li, T. Frömling, S. Weber, A. Klein and J. Rödel, Defect structure in Copper and Vanadium doped piezoelectric 0.9(Bi0.5Na0.5)TiO3-0.1(Bi0.5K0.5)TiO3 ceramics, J. Amer Ceram. Soc. 99 (2016) 543-550
H. Kaftelen, D. E. Kanar, S. Repp S. Weber, E. Erdem*, Investigation of MnO doped potassium-sodium niobate ((K,Na)NbO3) ceramics by EPR and impedance spectroscopic methods, Ferroelectrics 494 (2016) 11-18.
S. Repp, E. Erdem*, Controlling the exciton energy of Zinc Oxide (ZnO) quantum dots by changing the confinement conditions, Spectrochim. Acta A 152 (2016) 637-644
B. Yüksel Price, G. Hardal, M. Acikgöz, S. Repp, E. Erdem*, Effects of MnO doping on the electronic properties of Zinc Oxide: 406 GHz EPR spectroscopy and Newman superposition model analysis, J. Appl. Phys. 118 (2015) 175705
J. J. Schneider, R. C. Hoffmann, M. Kaloumenos, D. Spiehl, S. Weber, E. Erdem, Microwave-assisted synthesis of tantalum (V) oxide nanoparticles: Synthesis, dielectric properties and electron spin resonance spectroscopic characterization of defect chemistry, Phys. Chem. Chem. Phys. 17 (2015) 31801
A. Bateni, E. Erdem*, S. Repp, S. Acar, I. Kokal, W. Häßler, S. Weber, M.Somer, Electron paramagnetic resonance (EPR) and Raman spectroscopy studies on carbon doped MgB2 superconductor nanomaterials, J. Appl. Phys. 117 (2015) 153905
E. Erdem*, Electron beam curing of CoFe2O4 nanoparticles, Hybrid Materials 2014 (2014) 62-70
A. Bateni, S. Repp, R. Thomann, S. Acar, E. Erdem*, M.Somer, Defect structure of ultrafine MgB2 nanoparticles, Appl. Phys. Lett. 105 (2014) 202605
P.V. Chuyen, M. Eck, C. V. Pham, S. Züfle, M. Neukom, M. Seßler, D. Scheuneman, H. Borcher, S. Weber, E. Erdem, B. Ruhstaller, M. Krüger, Improved efficiency for bulk heterojunction hybrid solar cells by utilizing CdSe quantum dot - graphene nanocomposites, Phys. Chem. Chem. Phys. 16 (2014) 12251-12260
R. C. Hoffmann, M. Kaloumenos, E. Erdem, S. Weber, J. J. Schneider, Microwave assisted synthesis, characterization and dielectric properties of nanocrystalline zirconia, Eur. J. Inorg. Chem. 2014 (2014) 5554-5560
E. Sapper, R. Dittmer, D. Damjanovic, E. Erdem, D. Keeble, W. Jo, T. Granzow and J. Rödel, Aging in the relaxor and ferroelectric state of Fe-doped (1-x)BNT-xBT piezoelectric ceramics, J. Appl. Phys. 116 (2014) 104102
P.V. Chuyen, M. Krüger, M. Eck, S. Weber and E. Erdem*, Comparative EPR investigation of functionalized multiwalled carbon nanotubes, graphene-oxide, reduced graphene oxide and CdSe quantum dot-reduced graphene oxide hybrid material, Appl. Phys. Lett. 104 (2014) 132102
R. Baraki, P. Zierep, E. Erdem*, S. Weber and T. Granzow, Electron paramagnetic resonance (EPR) study of ZnO varistor material, J. Phys. Condens. Matter 26 (2014) 115801
E. Erdem*, Microwave power, temperature, atmospheric and light dependence of intrinsic defects in ZnO nanoparticles: A study of electron paramagnetic resonance (EPR) spectroscopy, J. Alloys and Compounds 605 (2014) 34-44
M. Acikgöz, M. D. Drahus, A. Ozarowski, H. van Tol, S. Weber and E. Erdem*, Local coordination of Fe3+ in ZnO nanoparticles: Multi-frequency EPR and Newman superposition model analysis, J. Phys. Condens. Matter 26 (2014) 155803
H. Kaftelen, M. Tuncer, S. Tu, S. Repp, H. Göcmez, R. Thomann, S. Weber, E. Erdem*, Mn-substituted spinel Li4Ti5O12 materials studied by multifrequency EPR spectroscopy, J. Mater. Chem. A 1 (2013) 9973-9982
R.-A. Eichel, E. Erdem, P. Jakes, A. Ozarowski, H. van Tol, R. C. Hoffmann and J. J. Schneider, Space charge layer, intrinsic”bulk”and surface complex defects in ZnO nanoparticles-A high field EPR analysis, Functional Materials Letters 6 (2013)1330004
R. C. Hoffmann, M. Kaloumenos, S.Heinschke, E. Erdem, P. Jakes, R.-A. Eichel, J. Schneider, Molecular precursor derived and solution processed indium zinc oxide as semiconductor in a field-effect transistor device. Towards an improved understanding of semiconductor film composition, J. Mater. Chem. C 1 (2013) 2577-2584
S. Schaab, M. Schulz, H. Fritze, R.-A. Eichel, E. Erdem, D. Rüscher, S. Hummelt, T. Granzow, Influence of reducing atmosphere on the defect chemistry of lead lanthanum zirconate titanate (8/65/35), Solid State Ionics 228 (2012) 56-63
H. Kaftelen, K. Ocakoglu, S.Tu, R. Thomann, S. Weber, E. Erdem*, EPR and photoluminescence spectroscopy studies on the defect structure of ZnO nanocrystals, Phys. Rev. B 86 (2012) 114113
E. Erdem, S. Schaab, W. Jo, A. Ozarowski, H. van Tol, R.-A. Eichel, Multi-frequency EPR analysis of Manganese-Doped [Bi 0.5Na0.5]TiO3-BaTiO3 Ceramics, Ferroelectrics 428 (2012) 116-121
S. K.S. Parashar, B.S. Murty, S. Repp, S. Weber, E. Erdem*, Investigation of Intrinsic Defects in Core-Shell Structured ZnO Nanocrystals, J. Appl. Phys. 111 (2012) 113712
M. D. Drahus, P. Jakes, E. Erdem, S. Schaab, J. Chen, M. Ozerov, S. Zvyagin, D. M. Smyth, R.-A. Eichel, Manganese-doped (1 − x)BiScO3–xPbTiO3 high-temperature ferroelectrics: Defect structure and mechanism of enhanced electric resistivity, Phys. Rev. B 84 (2011) 064113
A.K. Srivastava, M. Deepa, K.N. Sood, E. Erdem, R.-A.Eichel, Shape selective growth of ZnO nanostructures: spectral and electrochemical response, Adv. Mat. Lett. 2 (2011) 142-147
W. Jo, J.-B. Ollagnier, J.-L. Park, O.-J. Kwon, C. Park, H.-H. Seo, J.-S. Lee, E. Erdem, R.-A. Eichel, J. Rödel, J. Eur. Cer. Soc. 31 (2011) 2107-2117
P. Jakes, E. Erdem, A. Ozarowski, J. v. Tol, D. Mikhailova, H. Ehrenberg, R.-A. Eichel, Local coordination of Fe3+ in Li[Co0.98Fe0.02]O2 oxides as cathode material in lithium ion batteries - multi-frequency EPR and Newman-superposition analysis, Phys. Chem. Chem. Phys. 13 (2011) 9344-9352
E. Aksel, P. Jakes, E. Erdem, A. Ozarowski, J. L. Jones, R.-A. Eichel, Processing of manganese-doped [Bi0.5Na0.5]TiO3 ferroelectrics – reduction and oxidation reactions during calcination and sintering, J. Am. Ceram. Soc. 94 (2011) 1363-1367
M. D. Drahus, P. Jakes, E. Erdem, R.-A. Eichel, Defect structure of the Sr[Ti,Fe]Ox solid-solution system – change in iron oxidation states and defect complexation, Solid State Ionics 184 (2011) 47-51
P. Jakes, E. Erdem, R.-A. Eichel, L. Jin, D. Damjanovic, Position of defects with respect to domain walls in Fe3+-doped PZT piezoelectric ceramics, Appl. Phys. Lett. 98 (2011) 072907
P. Jakes, E. Erdem*, Finite size effects in ZnO nano-particles: An electron paramagnetic resonance (EPR) analysis, physica status solidi RRL 5 (2011) 56-58
E. Erdem, P. Jakes, S. K. S. Parashar, K. Kiraz, M. Somer, A. Rüdiger, R.-A. Eichel, Defect structure in aliovalently-doped and isovalently-substituted ferroelectric PbTiO3 nano-powders, J. Phys. Condens. Matter 22 (2010) 345901-07
E. Aksel, E. Erdem, P. Jakes, J. L. Jones, R.-A. Eichel, Defect structure and materials ‘hardening’ in Fe2O3-doped [Bi0.5Na0.5]TiO3 Ferroelectrics, Appl. Phys. Lett. 97 (2010) 012903
W. Jo, E. Erdem, R.-A. Eichel, J. Glaum, T. Granzow, D. Damjanovic, J. Rödel, Effect of donor and acceptor dopants in (Bi1/2Na1/2)TiO3-BaTiO3-(K0.5Na0.5)NbO3 lead-free piezoceramics, J. Appl. Phys. 108 (2010) 014110
E. Erdem, R.-A. Eichel, C. Fetzer, I. Dezsi, S. Lauterbach, H.-J. Kleebe, A. G. Balogh, Site of incorporation and solubility for Fe ions in acceptor-doped PZT ceramics, J. Appl. Phys. 107 (2010) 054109
J. J. Schneider, R. C. Hoffmann, J. Engstler, E. Erdem, P. Jakes, R.-A. Eichel, L. Pitta-Bauermann, J. Bill, Molecular routes to monomodal zinc oxide nanoparticles. Synthesis, characterization and defect chemistry, Chem. Mater. 22 (2010) 2203-2212
E. Erdem*, P. Jakes, R.-A. Eichel, D. C. Sinclair, M. Pasha, I. M. Reaney, Formation of defect dipoles in BaTiO3 ceramics heat-treated under reduced oxygen partial-pressure, Functional Materials Letters 3 (2010) 65-68
E. Erdem, K. Kiraz, M. Somer, R.-A. Eichel, Size effects in Fe3+ -modifed PbTiO3 nanocrystals - formation and orientation of defect-dipoles, J. Eur. Ceram. Soc. 30 (2010) 289-293
R.-A. Eichel, M. D. Drahus, P. Jakes, E. Erünal, E. Erdem, S.K.S. Parashar, H. Kungl, M.J. Hoffmann, Defect structure and formation of defect dipoles in Cu2+-modified metal oxides derived from a spin-Hamiltonian parameter analysis, Molecular Physics 107 (2009) 1981-1986
E. Erdem, V. Mass, A. Gembus, R.-A. Eichel, A. Schulz, V. L.-Kunzmann, R. Riedel, Defect states in lithium-doped polymer-derived SiCN ceramics characterized by Raman and electron paramagnetic resonance spectroscopy, Phys. Chem. Chem. Phys. 11 (2009) 5628-5633
H.J. Kleebe, S. Lauterbach, L. Silvestroni, E. Erdem, H. Kungl, M.J. Hoffmann, R.-A. Eichel, Formation of magnetic grains in ferroelectric Pb[Zr0.6Ti0.4]O3 ceramics modified with Fe3+ above the solubility limit, Appl. Phys. Lett. 94 (2009) 142901
J.J. Schneider, R. C. Hoffmann, J. Engstler, S. Dilfer, A. Klyszcz, E. Erdem, P. Jakes, R.-A. Eichel, Zinc oxide derived from single source precursor chemistry under chimie douce conditions: formation pathway, defect chemistry and possible applications in thin film printing, J. Mater. Chem. 19 (2009)1449-1457
L. Zhang, E. Erdem, Xiaobing Ren, R.-A. Eichel, Reorientation of defect dipoles in acceptor-modifed BaTiO3 single crystals – an electron paramagnetic resonance study, Appl. Phys. Lett. 93 (2008) 202901
I. Menapace, G. Mera, R. Riedel, E. Erdem, R.-A. Eichel, A. Pauletti G. A. Appleby, Luminescence of heat-treated silicon-based polymers: promising materials for LED applications, J. Mater. Sci. 43 (2008) 5790-5796
Comment: E. Erdem*, P. Jakes, Comment on the article: ‘‘Preparation and characterisation of nanocrystalline ZnO particles from a hydrothermal process’’, J. Nanoparticle Research 10 (2008) 1369
E. Erdem, M. D. Drahus, R.-A. Eichel, H. Kungl, M.J. Hoffmann, A. Ozorowski, H. van Tol, L. C. Brunel, Defect structure in 'soft' (Gd,Fe)-codoped PZT 52.5/47.5 piezoelectric ceramics, Functional Materials Letters 1 (2008) 7-11
E. Erdem, M. D. Drahus, R.-A. Eichel, H. Kungl, M.J. Hoffmann, A. Ozorowski, H. van Tol, L. C. Brunel, A. J. Bell, Manganese-modified PbTiO3 ferroelectrics – multi-frequency electron paramagnetic resonance and Newman superposition model analysis, Ferroelectrics 363 (2008) 39-49
E. Erdem, R.-A. Eichel, H. Kungl, M.J. Hoffmann, A. Ozorowski, H. van Tol, L. C. Brunel, Characterisation of Fe-VO defect dipoles in (La, Fe)-codoped PZT 52.5/47.5 piezoelectric ceramics by EPR, IEEE 55 (2008) 1061-1068
E. Erdem*, A. Matthes, R. Böttcher, H. -J. Gläsel, E. Hartmann, Size effects in ferroelectric PbTiO3 nanomaterials observed by multi-frequency electron paramagnetic resonance spectroscopy, J. Nanosciences and Nanotechnology 8 (2008) 702-716
E. Erdem, R.-A. Eichel, H. Kungl, M.J. Hoffmann, A. Ozorowski, H. van Tol, L. C. Brunel, Local symmetry-reduction in tetragonal (La,Fe)-codoped Pb[Zr0.4Ti0.6]O3 piezoelectric ceramics, Phys. Scripta T129 (2007) 12-16
R. Grigalaitis, J. Banys, S. Lapinskas, E. Erdem, R. Böttcher, H.-J. Gläsel, E. Hartmann, Dielectric investigations and theoretical calculations of size effect in PbTiO3 nanocrystals, IEEE 53 (2006) 2270-2274
E. Erdem, H.C. Semmelhack, R. Böttcher, H. Rumpf, J. Banys, A. Matthes, H. -J. Gläsel, D. Hirsch, E. Hartmann, Study of the tetragonal-to-cubic phase transition in PbTiO3 nanopowders, J. Phys. Condens. Matter 18 (2006) 3861-3874
R. Grigalaitis, J. Banys, S. Lapinskas, E. Erdem, R. Böttcher, H.-J. Gläsel, E. Hartmann, Dielectric investigations and theoretical calculations of size effect in PbTiO3 nanocrystals, Materials Science Forum 514-516 (2006) 235-239
E. Erdem, R. Böttcher, H. -J. Gläsel, E. Hartmann, Size effect in Cr doped PbTiO3 nanopowders observed by multifrequency EPR, Magn. Reson. Chem. 43 (2005) S174-182
E. Erdem, R. Böttcher, H. -J. Gläsel, G. Klotzche, E. Hartmann, D. Michel, Size effects in BaTiO3 nanopowders studied by EPR and NMR, Ferroelectrics 316 (2005) 43-49
R. Böttcher, E. Erdem, H. T. Langhammer, T. Müller, H.-P. Abicht, Incorporation of chromium into hexagonal barium titanate: An EPR study, J. Phys. Condens. Matter 17 (2005) 2763-2774
E. Erdem, R. Böttcher, H. -C. Semmelhack, H. -J. Gläsel, E. Hartmann, Multi-frequency EPR study of Cr3+ doped lead titanate (PbTiO3) nanopowders, phys. stat. sol (b) 239 (2003) R7-9
E. Erdem, R. Böttcher, H. -C. Semmelhack, H. -J. Gläsel, E. Hartmann, D. Hirsch, Preparation of PbTiO3 ultrafine powders from combined polymerisation and pyrolysis route, J. Mater. Sci. 38 (2003) 3211-3217
H. Rumpf, J. Hormes, H. Modrow, H.-J. Gläsel, E. Hartmann, E. Erdem, R. Böttcher, Preparation of nanocrystalline BaTiO3 characterised by in situ x-ray absorption spectroscopy, J. Phys. Chem. B 105 (2001) 3415-3421