Recently, the research team of Di David/Zou Chen/Zhao Baodan from the State Key Laboratory of Extreme Optical Technology and Instruments has developed the world’s first electrically driven perovskite laser. The related research findings were published in Nature under the title “Electrically driven lasing from a dual-cavity perovskite device.” Zou Chen is the first author of the paper, while Di David, Zou Chen, and Zhao Baodan are the corresponding authors. The primary affiliated institutions are the College of Optical Science and Engineering of Zhejiang University, the State Key Laboratory of Extreme Optical Technology and Instruments, and the Haining International Joint College.
This “dual-cavity” laser consists of two optical microcavities, integrating a low-threshold perovskite single-crystal microcavity subunit with a high-power microcavity perovskite LED subunit within a single device, forming a vertically stacked multilayer structure. This new type of semiconductor laser features a threshold current (the minimum current required to emit laser light) of 92 A/cm², which is an order of magnitude lower than that of the best organic semiconductor lasers. It also demonstrates good stability and can achieve high-speed modulation with a bandwidth of 36.2 MHz, showing promising potential for applications in on-chip data transmission, computing, and biomedical fields.
