Improved photoelectric and thermal stability in all-inorganic metal halide perovskite by mixed-halogen

• DOI: 10.1117/12.3008446
• Publication Date: 2023-11-24T15:03:15Z
• Authors: Zhihao Huang; Xuliang Feng; Guoyuan Liao; Zelin Zhou; Shuicong Gu; Ziyuan Xie; Yuanxun Liu; Yanyi Chen; Xuanyu Zhang; Ruxue Li
• Keywords: Thermal Stability; Photoelectric effect

Halide perovskite (ABX3) has become an exciting material for research in next-generation optoelectronic devices because of their remarkable photoelectric properties high stability, luminescent quantum yield and carrier mobility. However, the presence different halogen elements could have a significant impact on optical physical properties. That's they huge differences environmental exchange migration characteristics. In this work, samples with three anions CsPbBr₃, CsPbCl₃, CsPb(Br_0.5Cl_0.5)₃ were used, electrical stability photostability experiments carried out under dark environment continuous illumination 532 nm wavelength light, respectively. The electrical, thermal photodetectors analyzed by adding constant voltage 10 V to repeating times illumination, trends I-V curves recorded. experimental results show that anionic halides considerable defects leading poor light conditions. all-inorganic mixed halide is able form tightly bound surface ligands effectively suppressing generated surface, which its better linearity. Therefore, it indicates based allinorganic excellent provides promising way promote future.