| Title | Quasi 2D perovskite single-mode vertical-cavity lasers through large-area film transfer |
| Authors | Chu, Zihao Guo, Tong Zhao, Shiqi Chen, Huanqing Li, Yanping Xu, Wanjin Ran, Guangzhao |
| Affiliation | Peking Univ, State Key Lab Artificial Microstruct & Mesoscop P, Sch Phys, Beijing 100871, Peoples R China Peking Univ, Yangtze Delta Inst Optoelect, Nantong 226010, Jiangsu, Peoples R China |
| Issue Date | 21-Mar-2022 |
| Publisher | APPLIED PHYSICS LETTERS |
| Abstract | Quasi two-dimensional (2D) perovskites are a new class of laser gain medium; however, the thickness of the solution-processed perovskite layer is usually too thin to support an optical mode due to the low solubilities of precursors. Here, we report a flexible large-area film transfer method to lengthen the cavity according to the resonant condition. Then a single-mode vertical-cavity quasi 2D (PEA)(2)Csn-1PbnX3n+1 (X:Br, Cl) perovskite pure green laser is demonstrated, which has a low threshold of 39.3 mu J/cm(-2), a high-quality factor of 1159, and a highly linear polarization degree of 92.5% under nanosecond pulsed optical pumping. This is a significant step toward low-cost practical perovskite lasers. |
| URI | http://hdl.handle.net/20.500.11897/649368 |
| ISSN | 0003-6951 |
| DOI | 10.1063/5.0085882 |
| Indexed | EI SCI(E) |
| Appears in Collections: | 物理学院 人工微结构和介观物理国家重点实验室 |
