Temperature-Dependent Amplified Spontaneous Emission in CsPbBr₃ Thin Films Deposited by Single-Step RF-Magnetron Sputtering.

ABSTRACT: Due to their high optical efficiency, low-cost fabrication and wide variety in composition and bandgap, halide perovskites are recognized nowadays as real contenders for the development of the next generation of optoelectronic devices, which, among others, often require high quality over large areas which is readily attainable by vacuum deposition. Here, we report the amplified spontaneous emission (ASE) properties of two CsPbBr₃ films obtained by single-step RF-magnetron sputtering from a target containing precursors with variable compositions. Both the samples show ASE over a broad range of temperatures from 10 K up to 270 K. The ASE threshold results strongly temperature dependent, with the best performance occurring at about 50 K (down to 100 µJ/cm²), whereas at h

SUBMITTER: Morello G 

PROVIDER: S-EPMC9866928 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature