Evaluating the Resistance of Bifacial Perovskite Photodetectors to Xenon Ion Irradiation
Yerlanuly Y. Parkhomenko H.P. Beisenbayev A.R. Zdorovets M.V. Ng A. Jumabekov A.N.
13 February 2026John Wiley and Sons Inc
Advanced Science
2026#13Issue 9
In this work, high-performance bifacial perovskite photodetectors (BPPDs) are systematically investigated before and after xenon ion irradiation with energy 1.75 MeV nucleon−1 (231 MeV) and fluences up to 1011 nucleons cm−2, simulating extreme radiation environments. A comprehensive characterization of the materials used in the devices functional layers is conducted, accompanied by an in-depth analysis of device performance before and after irradiation. Before irradiation, the devices exhibited good performance, with responsivity (R) of 0.39 A W−1 (front side) and 0.33 A W−1 (back side), detectivity (D*) of 2.4 × 1011 and 2.0 × 1011 Jones. At low fluence (1010 nucleons cm−2): R slightly decreased to 0.37/0.31 A W−1, while D* increased to 4.4 × 1011/3.7 × 1011 Jones due to an increase in shunt resistance. At higher fluence (1011 nucleons cm−2), irradiation induced high defect formation within the functional layers, causing pronounced degradation: R dropped to 0.25/0.18 A W−1, D* dropped to 2.8 × 1011/2.2 × 1011 Jones. Despite these changes, the devices retained over 60% of their initial performance and maintained low spectral noise density, confirming notable radiation tolerance. The synergy of bifaciality and radiation resistance highlights the potential of BPPDs for reliable operation under harsh radiation conditions, offering a promising solution for future optoelectronic applications in radiation-exposed environments.
bifacial photodetectors , perovskite , xenon ion irradiation
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Department of Physics, School of Sciences and Humanities, Nazarbayev University, Astana, 010000, Kazakhstan
Kazakh-British Technical University, Almaty, 050000, Kazakhstan
Faculty of Physics and Astronomy, Adam Mickiewicz University, Poznań, 61–614, Poland
Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
The Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Department of Electrical and Computer Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, 010000, Kazakhstan
Department of Physics
Kazakh-British Technical University
Faculty of Physics and Astronomy
Department of Chemical and Materials Engineering
The Institute of Nuclear Physics
Department of Electrical and Computer Engineering
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