Achieving stable photodiode characteristics under ionizing radiation with a self-adaptive nanostructured heterojunction CNWs/CdZnTe
Yerlanuly Y. Parkhomenko H.P. Zhumadilov R.Y. Nemkayeva R.R. Akhtanova G. Solovan M.M. Mostovyi A.I. Orazbayev S.A. Utegenov A.U. Ramazanov T.S. Gabdullin M.T. Jumabekov A.N. Brus V.V.
November 2023Elsevier Ltd
Carbon
2023#215
This study proposed self-adaptive nanostructured heterojunction UV-VIS-NIR photodiodes carbon nanowalls (CNWs)/cadmium zinc telluride (CdZnTe) exhibiting stable photoelectric characteristics under ionizing radiation conditions. We carried out a comprehensive analysis of the impact of proton radiation with an energy of 1.5 MeV and a total fluence of 1012 protons/cm2 on the properties of CNWs and CdZnTe functional layers, as well as on the main photodiode characteristics of the CNWs/CdZnTe heterojunctions, employing a set of state-of-the-art materials and device characterization techniques. Responsivity and detectivity of the prepared heterojunctions even slightly improve after exposure to harsh ionizing radiation conditions due to the unique radiation-induced self-adaptive features of the CNWs/CdZnTe heterojunction interface. The characteristics of the CNWs/CdZnTe photodiodes before and after high-energy proton bombardment demonstrate excellent stability, which is the key requirement for long-term and reliable operation of optoelectronic devices in space or radioactively contaminated environments.
Carbon nanowalls , CdZnTe , Photodiode , Proton irradiation , Radiation resistance
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Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Kazakh-British Technical University, Almaty, 050000, Kazakhstan
Institute of Applied Science and Information Technologies, Almaty, 050038, Kazakhstan
Department of Physics, Nazarbayev University, Astana, 010000, Kazakhstan
Faculty of Physics, Adam Mickiewicz University, Poznanv, 61-614, Poland
Department of Electronics and Energy Engineering, Yuriy Fedkovych Chernivtsi National University, Chernivtsi, 58012, Ukraine
Al-Farabi Kazakh National University
Kazakh-British Technical University
Institute of Applied Science and Information Technologies
Department of Physics
Faculty of Physics
Department of Electronics and Energy Engineering
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