High-performance and stable 2D/3D perovskite photodetectors enabled by PEAI passivation

Tengteng Li; Qingyan Li; Xin Ding; Hongliang Zhao; Silei Wang; Mengyao Li; Qi Wang; Xin Tang; Yating Zhang; Jianquan Yao

doi:10.1117/12.2625104

27 March 2022 High-performance and stable 2D/3D perovskite photodetectors enabled by PEAI passivation

Tengteng Li, Qingyan Li, Xin Ding, Hongliang Zhao, Silei Wang, Mengyao Li, Qi Wang, Xin Tang, Yating Zhang, Jianquan Yao

Author Affiliations +

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 1216986 (2022) https://doi.org/10.1117/12.2625104
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

Three-dimensional (3D) perovskite photodetectors (PPDs) demonstrate remarkable photoelectric detection ability, but the intrinsic instability of 3D perovskite films against moisture, oxygen, and temperature has been a roadblock for achieving great stability and reliability of the resulting PDs, which can be mainly ascribed to the inevitable defects on surfaces and grain boundaries that can incur nonradiative charge recombination to impair device performance and initiate the degradation of perovskites. In this work, we introduced the two-dimensional (2D) perovskite material PEAI to fabricate a high-performance and stable 2D/3D stacked PPD. As a result, the responsivity of the PEAI processed PPD (PEAI-PPD) reached 1.19 A/W under the illumination of 532 nm laser with the power density of 5 μW/cm² at bias voltage of −1 V, and retains 80.15% of the initial value after 16 days of nonencapsulated storage at 10%-15% relative humidity (RH). Our work provides a simple and effective method for the fabrication of high-performance and stable 2D/3D stacked PPDs, which has great application potential in visible light communication, imaging and environmental monitoring under complex environmental conditions.

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Tengteng Li, Qingyan Li, Xin Ding, Hongliang Zhao, Silei Wang, Mengyao Li, Qi Wang, Xin Tang, Yating Zhang, and Jianquan Yao "High-performance and stable 2D/3D perovskite photodetectors enabled by PEAI passivation", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 1216986 (27 March 2022); https://doi.org/10.1117/12.2625104

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