Fabricating mixed-halide perovskite nanowire photodetectors for polarized light detection and encrypted optical communication via nanoimprinting and anion exchange.
Meng-Meng Li, Zhuang-Zhuang Zhou, Hao Liu, Ning Wei, Chao Lv, Hong Xia
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引用次数: 0
Abstract
Mixed-halide perovskite nanowires have broad applications in optoelectronics due to their excellent charge transport properties and high mobility. However, traditional preparation methods face challenges in achieving compositional uniformity and structural stability. In this study, we employ a two-step method combining nanoimprinting and liquid-phase anion exchange to fabricate mixed-halide nanowires. The photodetector based on CsCu2IxCl(3-x) nanowires (NWs) exhibits a responsivity of 36.8 mA/W, a high polarization sensitivity of Imax/Imin = 1.53, and excellent mechanical stability. Finally, encrypted optical communication is realized by integrating encryption algorithms with a dual-beam irradiation mode. This work demonstrates the successful fabrication of mixed-halide nanowires via the two-step method and explores their potential for other optoelectronic applications.
期刊介绍：
The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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