Low Threshold and Ultrastability of One-Step Air-Processed All-Inorganic CsPbX3 Thin Films toward Full-Color Visible Amplified Spontaneous Emission

• Published in: ACS applied materials & interfaces Vol. 14; no. 23; pp. 26904 - 26912
• Main Authors: Wang, Zhujun, Yang, Jie, Li, Maohan, Zeng, Xin, Pi, Mingyu, Liu, Zhengzheng, Liu, Jun, Zhang, Dingke, Hu, Zhiping, Du, Juan
• Format: Journal Article
• Language: English
• Published: American Chemical Society 31.05.2022
• Subjects: Functional Inorganic Materials and Devices; amplified spontaneous emission; nanosecond laser pumping; wavelength-tunable; ionic liquid solvent; cesium lead halide perovskites

All-inorganic perovskites (CsPbX3) with the merits of high stability and remarkable optical gain property are attractive for achieving on-chip coherent light sources. Unfortunately, traditional solution-processed CsPbX3 films suffer from inevitable poor surface integrity and pinhole defects, severel...