世界初の電気駆動ペロブスカイトレーザー（World’s first electrically-driven perovskite laser）

2025-08-28 浙江大学（ZJU）

Figure 1: Structure of the electrically-driven perovskite laser. Source: Nature (2025).

＜関連情報＞

• https://www.zju.edu.cn/english/2025/0822/c19573a3075694/page.htm
• https://www.nature.com/articles/s41586-025-09457-2

デュアルキャビティペロブスカイトデバイスからの電気駆動レーザー発振 Electrically driven lasing from a dual-cavity perovskite device

Chen Zou,Zhixiang Ren,Kangshuo Hui,Zixiang Wang,Yangning Fan,Yichen Yang,Bo Yuan,Baodan Zhao & Dawei Di
Nature  Published:27 August 2025
DOI:https://doi.org/10.1038/s41586-025-09457-2

Abstract

Solution-processed semiconductor lasers promise lightweight, wearable and scalable optoelectronic applications. Among the gain media for solution-processed lasers, metal halide perovskites stand out as an exceptional class because of their ability to achieve wavelength-adjustable, low-threshold lasing under optical pumping^{1,2,3,4,5,6,7,8}. Despite the progress in this field, electrically driven lasing from perovskite semiconductors remains a critical challenge. Here we demonstrate an electrically driven perovskite laser, constructed by vertically integrating a low-threshold single-crystal perovskite microcavity sub-unit with a high-power microcavity perovskite LED (PeLED) sub-unit. Under pulsed electrical excitation, the dual-cavity perovskite device shows a minimum lasing threshold of 92 A cm⁻² (average threshold: 129 A cm⁻², at about 22 °C, in air), which is an order of magnitude lower than that of state-of-the-art electrically driven organic lasers^9,10. Key to this demonstration is the integrated dual-cavity device architecture, which allows the microcavity PeLED sub-unit to deliver directional emission into the single-crystal perovskite microcavity sub-unit (at a coupling efficiency of about 82.7%) to establish the lasing action. An operational half-life (T₅₀) of 1.8 h (6.4 × 10⁴ voltage pulses at 10 Hz) is achieved, outperforming the stability of electrically pumped organic lasers^9,10. The dual-cavity perovskite laser can be rapidly modulated at a bandwidth of 36.2 MHz, indicating its potential for data transmission and computational applications.