All-inorganic perovskite- based distributed feedback resonator

作者：Gong, Junyi; Wang, Yue; Liu, Sheng; Zeng, Pan; Yang, Xilu; Liang, Rongqing; Ou, Qiongrong^*; Wu, Xiang; Zhang, Shuyu

来源：Optics Express, 2017, 25(24): A1154-A1161.

DOI：10.1364/OE.25.0A1154

• LIGHT-EMITTING-DIODES
• HALIDE PEROVSKITES
• LASERS
• NANOCRYSTALS
• PERFORMANCE
• CSPBBR3
• CSPBX3
• CELLS
• BR

Halide perovskite materials have rapidly emerged as outstanding optoelectronic materials for solar cells, light-emitting diodes (LEDs), and lasers. Compared to hybrid organic-inorganic perovskites, all-inorganic perovskites have shown unique merits that may contribute to the ultimate goal of developing electrically-pumped lasers. In this paper, we demonstrate a distributed feedback (DFB) resonator using an all-inorganic perovskite thin film as the gain medium. The film has a gain coefficient of 161.1 cm(-1) and a loss coefficient of 30.9 cm(-1). Excited by picosecond pulses, the microstructured all-inorganic perovskite film exhibits a single-mode emission at 654 nm with a threshold of 33 mu J/cm(2). The facile fabrication process provides a promising route towards low-cost single-mode visible lasers for many practical applications.

• 出版日期2017-11-27
• 单位复旦大学