2023
Flexible Metal/Semiconductor/Metal Type Photodetectors Based on Manganese Doped ZnO Nanorods
Emine Karagöz, Çiğdem Tuc Altaf, Ecenaz Yaman, İpek Deniz Yıldırım, Emre Erdem, Cem Çelebi, Mehmet Fidan, Mehmet Sankir, Nurdan Demirci Sankir
Journal of Alloys and Compounds 170474 (2023)
High voltage response of graphene/4H-SiC UV photodetector with low level detection
Ala K. Jehad, Ozhan Unverdi, Cem Çelebi
Journal of Alloys and Compounds (2023)
Amperometric Detection of NH3 by Aromatic SAM Modified Graphene
Nesli Yağmurcukardeş, Abdullah Bayram, Hasan Aydin, Mustafa Can, Serafettin Demic, Yaser Acikbas, Cem Çelebi
IEEE Sensors Journal (2023)
Self-powered photodetector array based on individual graphene electrode and silicon-on-insulator integration
Alper Yanilmaz, Özhan Ünverdi, Cem Çelebi
Sensors and Actuators A: Physical 355, 114336 (2023)
CVD graphene/SiC UV photodetector with enhanced spectral responsivity and response speed
Ala K. Jehad, Mehmet Fidan, Özhan Ünverdi, Cem Çelebi
Sensors and Actuators A: Physical 355, 114309 (2023)
2022
Intercalation leads to inverse layer dependence of friction on chemically doped MoS2
Ogulcan Acikgoz, Enrique Guerrero, Alper Yanılmaz, Omur E. Dagdeviren, Cem Çelebi, David A. Strubbe and Mehmet Z. Baykara
Nanotechnology 34, 015706 (2022)
Graphene/SOI-based self-powered Schottky barrier photodiode array
Alper Yanılmaz, Mehmet Fidan, Özhan Ünverdi, and Cem Çelebi
Applied Physics Letters, 121, 011105 (2022)
Enhancing the photo-response characteristics of graphene/n-Si based Schottky barrier photodiodes by increasing the number of graphene layers
Mehmet Fidan, Özhan Ünverdi, and Cem Çelebi
Journal of Vacuum Science and Technology A , 40, 032203 (2022)
Light-induced modification of the Schottky barrier height in graphene/Si based near-infrared photodiodes
Mehmet Fidan, Gülçin Dönmez, Alper Yanılmaz, Özhan Ünverdi, Cem Çelebi
Infrared Physics and Technology, 123, 104165 (2022)
Anisotropic etching of CVD grown graphene for ammonia sensing
Nesli Yagmurcukardes, Abdullah Bayram, Hasan Aydin, Mehmet Yagmurcukardes, Yaser Acikbas, François M. Peeters, and Cem Çelebi
IEEE Sensors Journal, Vol. 22, No.5 (2022)
2021
Junction area dependent performance of graphene/silicon based self-powered Schottky photodiodes
Mehmet Fidan, Özhan Ünverdi, Cem Çelebi
Sensors and Actuators A: Physical, 331, 112829 (2021)
The role of charge distribution on the friction coefficients of epitaxial graphene grown on the Si-terminated and C-terminated faces of SiC
Yasemin Keskin, Özhan Ünverdi, Doğan Erbahar, İsmet İnönü Kaya, Cem Çelebi
Carbon 178, 125-132 (2021)
Lipid bilayer on wrinkled-interfaced graphene field effect transistor
Dilce Ozkendir Inanc, Cem Celebi, Umit Hakan Yildiz
Materials Letters 284, 128998 (2021)
2020
Adsorbate-induced enhancement of the spectral response in graphene/silicon based-Schottky barrier photodetectors
Nusret Şahan, Mehmet Fidan, and Cem Çelebi
Applied Physics A 126, Article number 938 (2020)
Zinc Oxide and Metal Halide Perovskite Nanostructures Having Tunable Morphologies Grown by Nanosecond Laser Ablation for Light-Emitting Devices
Nazrin Abdullayeva, Cigdem Tuc Altaf, Alihan Kumtepe, Nazmi Yilmaz, Ozlem Coskun, Mehmet Sankir, Hamza Kurt, Cem Celebi, Alper Yanilmaz and Nurdan Demirci Sankir
ACS Appl. Nano Mater. (2020)
Performance enhancement of inverted perovskite solar cells through interface engineering by TPD based bidentate self-assembled monolayers
Emre Arkan, M. Zeliha Yiğit Arkan, Muhittin Unal, Eyup Yalcin, Hasan Aydin, Cem Celebi, Mustafa Can, Cem Tozlu, Serafettin Demic
Optical Materials 105, 109910 (2020)
Mechanisms behind slow photoresponse character of pulse electron deposited ZnO thin films
Mehmet Özdoğan, Cem Çelebi, Gökhan Utlu
Materials Science in Semiconductor Processing, Volume 107, 104863 (2020)
2019
Impact of encapsulation method on the adsorbate induced electrical instability of monolayer graphene
Sırrı Batuhan Kalkan, Alper Yanılmaz, and Cem Çelebi
Journal of Vacuum Science and Technology A 37, 051502 (2019)
The comparison of transient photocurrent spectroscopy measurements of Pulsed Electron Deposited ZnO thin film for air and vacuum ambient conditions
Mehmet Özdoğan, Serap Yiğen, Cem Çelebi, Gökhan Utlu
Thin Solid Films 680, 48-54 (2019)
Monitoring the characteristic properties of Ga-doped ZnO by Raman spectroscopy and atomic scale calculations
Seyda Horzum, Fadil Iyikanat, Ramazan Tuğrul Senger, Cem Çelebi, Mohamed Sbeta, Abdullah Yildiz, Tülay Serin
Journal of Molecular Structure, vol.1180 (2019)
2018
Epitaxial graphene thermistor for cryogenic temperatures
S. B. Kalkan, S. Yiğen, and C. Çelebi
Sensors and Actuators A: Physical, 280, 8-13 (2018)
P3HT-graphene bilayer electrode for Schottky junction photodetectors
H. Aydın, S. B. Kalkan, C. Varlikli, and C. Çelebi
Nanotechnology 29, 145502 (2018)
The effect of adsorbates on the electrical stability of graphene studied by transient photocurrent spectroscopy
S. B. Kalkan, H. Aydın, D. Özkendir, and C. Çelebi
Appl. Phys. Lett. 112, 013103 (2018)
2017
Few-Layer MoS2 as Nitrogen Protective Barrier
B. Akbali, A. Yanilmaz, A. Tomak, S. Tongay, C. Çelebi, and H. Sahin
Nanotechnology 28, 415706 (2017)
Electron field emission from SiC nanopillars produced by using nanosphere lithography
D. Yeşilpınar and C.Çelebi
J. Vac. Sci. Technol. B 35(4), 041801 (2017)
2015
Epitaxial graphene contact electrode for silicon carbide based ultraviolet photodetector
E. Kuşdemir, D. Özkendir, V. Fırat, and C. Çelebi
J. Phys. D: Appl. Phys. 48, 095104 (2015)
2013
Cleavage Induced Rows of Missing Atoms on ZnTe(110) Surface
C. Çelebi, O. Arı, and R. T. Senger
Phys. Rev. B, 87, 085308 (2013)
Control of the graphene growth rate on capped SiC surface under strong Si confinement
C. Çelebi, C. Yanık, A. G. Demirkol, and İsmet İ. Kaya,
Appl. Surf. Sci., 264, 56 (2013)
2012
The Effect of a SiC Cap on the growth of Epitaxial Graphene on SiC in Ultra High Vacuum
C. Çelebi, C. Yanık, A. G. Demirkol, and İsmet İ. Kaya
Carbon, 50, 3026 (2012)
2010
Surface Induced Asymmetry of Acceptor Wave Functions
C. Çelebi, J. K. Garleff, A. M. Yakunin, A. Yu. Silov, W. Van Roy, J. -M. Tang, M. E. Flatté, and P. M. Koenraad
Phys. Rev. Lett.,104, 086404 (2010). (Cover article)
2008
Spatial Distribution of a Hole Localized on Acceptor in Deformed Crystal
A. M. Monakhov, N. I. Sablina, N. S. Averkiev, C. Çelebi, and P. M. Koenraad
Solid State Comm., 146, 416 (2008)
Atomically Precise Impurity Identification and Modification on the Mn Doped GaAs(110) Surface with Scanning Tunneling Microscopy
J.K.Garleff, C. Çelebi, W. Van Roy, J. -M. Tang, M. E. Flatté, and P. M. Koenraad
Phys. Rev. B, 78, 075313 (2008)
Anisotropic Spatial Structure of Deep Acceptor States in GaAs and GaP
C. Çelebi, P. M. Koenraad, A. Yu. Silov, W. Van Roy, A. M. Monakhov, J. -M.Tang, and M. E. Flatté,
Phys. Rev. B, 77, 075328 (2008)
2007
Atomic Scale Study of the Impact of Strain and Composition of the Capping Layer on the Formation of InAs Quantum Dots
J. M. Ulloa, C. Çelebi, P. M. Koenraad, A. Simon, E. Gapihan, A. Letoublon, N. Bertru, I. Drouzas, D. Mowbray, M. J. Steer, and M. Hopkinson,
J. Appl. Phys., 101, 081707 (2007)
Cross-sectional Scanning Tunneling Microscopy Study on II-VI Multilayer Structures
A. Wierts, J. M. Ulloa, C. Çelebi, P. M. Koenraad, H. Boukari, L. Maingault, R. André, and H. Mariette,
Appl. Phys. Lett.,91, 161907 (2007)
2006
Capping of InAs Quantum Dots Grown on (311)BInP Studied by Cross-sectional Scanning Tunneling Microscopy
C. Çelebi, J. M. Ulloa, P. M. Koenraad, A. Simon, A. Letoublon, and N. Bertru,
Appl. Phys. Lett.,89, 02311 (2006)
Electronic and Optical Properties of InAs/InP Quantum Dots on InP(100) and InP(311)B Substrates
C. Cornet, A. Schliwa, J. Even, F. Doré, C. Çelebi, A. Letoublon, E. Macé, C. Paranthoën, A. Simon, P.M. Koenraad, N. Bertru, D. Bimberg, and S. Loualaiche,
Phys. Rev. B, 74, 035312 (2006)