Emre  Erdem

Türkçe sürüm

Emre Erdem

E-mail : emreerdemsabanciuniv.edu

Personal web page

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


Work Experience :

Faculty member -Materials Science and Nanoengineering, Sabanci University -2018 to present

Marie Curie LeStudium fellow - Physics, Université François Rabelais de Tours - 2017 to 2018

Research Associate - Physical Chemistry, Albert-Ludwigs-Universität Freiburg - 2009 to 2018

Postdoc - Physical Chemistry, Technische Universität Darmstadt - 2006 to 2009

Research assistant - Physics, Universität Leipzig - 2001 to 2006

Research Assistant - Physics, Ankara University - 1998 to 1999


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
Before SU Publications:
  • 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)
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  • 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
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  • 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
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  • E. Erdem*, Defect induced p-type conductivity in ZnO at high temperature: EPR spectroscopy Nanoscale 9 (2017) 10983-10986
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  • 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
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  • 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
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  • 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
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  • S. Repp, S. Weber E. Erdem*, Defect evolution of non-stoichiometric ZnO quantum dots, J. Phys. Chem. C 120 (2016) 25124-25130
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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.
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  • 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
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  • 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
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  • 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
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  • 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
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  • E. Erdem*, Electron beam curing of CoFe2O4 nanoparticles, Hybrid Materials 2014 (2014) 62-70
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  • A. Bateni, S. Repp, R. Thomann, S. Acar, E. Erdem*, M.Somer, Defect structure of ultrafine MgB2 nanoparticles, Appl. Phys. Lett. 105 (2014) 202605
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  •  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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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  • 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
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