Light-emitting solar cells (LESCs) have tremendous potential in the next-generation optoelectronics industry due to their excellent photophysical properties and general configurational advantages. The important feature of these LESC devices is that it can reversibly transduce optical energy to electrical energy and vice versa in a single platform. Consequently, they have significant potential in the development of solar light-emitting diode (LED) street lights in rural, semiurban, and urban areas. However, their commercial development has been limited so far due to the complex device geometry, unfavorable alignment of energy levels, poor quality of transport layers, incomplete coverage of the solar spectrum, and more notably, intrinsic instability of perovskites. Herein, the recent developments in the field are discussed, followed by a critical analysis of major challenges and possible solutions to overcome these challenges. Finally, a roadmap for the successful development of efficient and stable dual-functioning perovskite-based LESCs is provided, which can be useful for the energy industry.

中文翻译：

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发光钙钛矿太阳能电池：两种状态的故事

发光太阳能电池（LESCs）由于其优异的光物理特性和一般的配置优势，在下一代光电子产业中具有巨大的潜力。这些 LESC 设备的重要特征是它可以在单个平台中可逆地将光能转换为电能，反之亦然。因此，它们在农村、郊区和城市地区开发太阳能发光二极管 (LED) 路灯方面具有巨大潜力。然而，到目前为止，由于复杂的器件几何形状、不利的能级对齐、传输层质量差、太阳光谱覆盖不完整，以及更值得注意的是钙钛矿的内在不稳定性，它们的商业发展受到限制。在这里，讨论了该领域的最新发展，然后对主要挑战和克服这些挑战的可能解决方案进行批判性分析。最后，提供了成功开发高效稳定的双功能钙钛矿基 LESC 的路线图，这对能源行业很有用。