Gokhan Bakan

Gokhan Bakan received his PhD in 2012 from the Department of Electrical and Computer Engineering of the University of Connecticut, USA. His PhD studies focused on investigation of the coupled nature of electric and heat transport (thermoelectric effects) in micro/nano-scale semiconductor devices. Following his PhD, he stayed in the same group to extend his studies to phase-change memory devices.

In 2014, Dr. Bakan received a 2-year postdoctoral fellowship to continue his phase-change memory device research at Bilkent University, Turkey. There, he initiated and led the research on phase-change materials/devices. From 2015 to 2019, Dr. Bakan worked as an assistant professor of Electrical Engineering. He taught undergraduate and graduate level electrical engineering courses.

Before joining NPL, Dr. Bakan was a research associate at the National Graphene Institute of the University of Manchester from 2019 and 2021. He led the efforts of enhancing the technology readiness of electrically tunable infrared emitters based on graphene.

Dr. Bakan authored/co-authored more than 35 journal articles and 6 patent applications.

Areas of Interest

• Design, fabrication, and characterization of semiconductor devices
• Electrical characterization methods
• Phase-change memory devices
• Phase-change materials for tunable optical devices
• Optoelectronics
• Graphene devices
• Organic electronics
• Optical surfaces for spectroscopy, sensing, and security applications

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Selected publications

• M. S. Ergoktas, G. Bakan, E. Kovalska, L. W. Le Fevre, R. P. Fields, P. Steiner, X. Yu, O. Salihoglu, S. Balci, V. I. Fal’ko, K. S. Novoselov, R. A. W. Dryfe, C. Kocabas.  “Multispectral graphene-based electro-optical surfaces with reversible tunability from visible to microwave wavelengths” Nature Photonics, (2021).
• M. S. Ergoktas, G. Bakan, P. Steiner, C. Bartlam, Y. Malevich, E. Ozden-Yenigun, G. He, N. Karim, P. Cataldi, M. Bissett, I. A. Kinloch, K. S. Novoselov, C. Kocabas “Graphene-enabled adaptive infrared textiles” Nano Letters, 20(7), 5346–5352 (2020).
• G. Bakan, S. Ayas, M. Serhatlioglu, A. Dana, C. Elbuken “Reversible decryption of covert nanometer-thick patterns in modular metamaterials” Optics Letters, 44(18), 4507- 4510 (2019). (Featured by OSA News)
• G. Bakan, S. Ayas, M. Serhatlioglu, C. Elbuken, A. Dana “Invisible Thin‐Film Patterns with Strong Infrared Emission as an Optical Security Feature” Advanced Optical Materials, 6(21), 1800613 (2018).
• M. A. Khalily, G. Bakan, B. Kucukoz, A. E. Topal, A. Karatay, H. G. Yaglioglu, A. Dana, M. O. Guler “Fabrication of Supramolecular n/p- Nanowires via Coassembly of Oppositely Charged Peptide-Chromophore Systems in Aqueous Media” ACS Nano 11 (7), 6881–6892 (2017).
• G. Bakan, S. Ayas, E. Ozgur, K. Celebi, A. Dana “Thermally Tunable Ultrasensitive Infrared Absorption Spectroscopy Platforms Based on Thin Phase-Change Films” ACS Sensors, 1(12), 1403–1407 (2016).
• G. Bakan, S. Ayas, T. Saidzoda, K. Celebi, A. Dana “Ultrathin phase-change coatings on metals for electrothermally tunable colors” Applied Physics Letters 109, 071109 (2016).
• F. Dirisaglik, G. Bakan, Z. Jurado, S. Muneer, M. Akbulut, J. Rarey, L. Sullivan, M. Wennberg, A. King, L. Zhang, R. Nowak, C. Lam, H. Silva and A. Gokirmak “High Speed, High Temperature Electrical Characterization of Phase Change Materials: Metastable Phases, Crystallization Dynamics, and Resistance Drift,” Nanoscale, 7(40), 16625-16630 (2015).
• G. Bakan, N. Khan, H. Silva, A. Gokirmak, “High-temperature thermoelectric transport at small scales: generation, transport and recombination of minority carriers,” Scientific Reports 3, 2724 (2013).
• G. Bakan, N. Khan, A. Cywar, K. Cil, M. Akbulut, A. Gokirmak, H. Silva, “Self-heating of silicon microwires: Crystallization and thermoelectric effects,” Journal of Material Research 26(9), 1061-1071 (2011). (Invited Feature Paper)

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