Ryu Hwa Sook, Park Song Yi, Lee Tack Ho, Kim Jin Young, Woo Han Young
Department of Chemistry, Korea University, Seoul 02841, Republic of Korea.
Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea.
Nanoscale. 2020 Mar 12;12(10):5792-5804. doi: 10.1039/d0nr00816h.
Among various potential applications of organic photovoltaics (OPVs), indoor power generation has great potential because of several advantages over outdoor light harvesting under 1 sun conditions. Commonly used indoor light sources have narrower emission spectra with lower intensity (by 3 orders of magnitude) as compared to the solar spectrum. Highly tunable optical absorption, large absorption coefficients, and small leakage currents under dim lighting conditions make OPVs promising candidates for indoor applications. For optimizing indoor photovoltaic materials and devices, several key issues (different from those under 1 sun conditions), such as developing new indoor photovoltaic materials and devices with suitable absorption spectra, large open-circuit voltages with low energy loss, minimized trap-mediated charge recombination and leakage currents, and device stability under indoor conditions, should be considered carefully. In this review, the recent progress in optimization of indoor photovoltaic materials and devices, and the key strategies to optimize the indoor photovoltaic characteristics will be summarized and discussed.
在有机光伏（OPV）的各种潜在应用中，室内发电具有巨大潜力，因为与在1个太阳光照条件下进行室外光捕获相比，它具有若干优势。与太阳光谱相比，常用的室内光源发射光谱更窄，强度更低（低3个数量级）。在昏暗照明条件下，高度可调谐的光吸收、大吸收系数和小泄漏电流使有机光伏成为室内应用的有前途的候选者。为了优化室内光伏材料和器件，应仔细考虑几个关键问题（与1个太阳光照条件下的问题不同），例如开发具有合适吸收光谱的新型室内光伏材料和器件、具有低能量损失的大开路电压、最小化陷阱介导的电荷复合和泄漏电流，以及室内条件下的器件稳定性。在这篇综述中，将总结和讨论室内光伏材料和器件优化方面的最新进展以及优化室内光伏特性的关键策略。
