Hybrid perovskite materials are widely researched due to their high absorptivity, inexpensive synthesis, and promise in photovoltaic devices. These materials are also of interest as highly sensitive photodetectors. In this study, their potential for use in visible light communication is explored in a configuration that allows for simultaneous energy and data harvesting. Using a triple-cation material and appropriate device design, a new record data rate for perovskite photodetectors of 56 Mbps and power conversion efficiencies above 20% under white LED illumination are achieved. With this device design, the −3 dB bandwidth is increased by minimizing the dominating time constant of the system. This correlation between the bandwidth and time constant is proved using measurements of time-resolved photoluminescence, transient photovoltage, and device resistance.

中文翻译：

---

用于可见光通信的三重阳离子钙钛矿太阳能电池

杂化钙钛矿材料由于其高吸收率、廉价的合成以及在光伏器件中的应用前景而被广泛研究。这些材料也可用作高灵敏度光电探测器。在这项研究中，在允许同时收集能量和数据的配置中探索了它们在可见光通信中使用的潜力。使用三阳离子材料和适当的器件设计，在白光 LED 照明下实现了 56 Mbps 的钙钛矿光电探测器的新记录数据速率和超过 20% 的功率转换效率。使用此器件设计，通过最小化系统的主要时间常数来增加 −3 dB 带宽。使用时间分辨光致发光、瞬态光电压、