Highly Efficient Semitransparent Organic Solar Cells with Color Rendering Index Approaching 100 |
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Authors: | Jingwen Zhang Guiying Xu Feng Tao Guang Zeng Moyao Zhang Yang Yang Yaowen Li Yongfang Li |
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Affiliation: | Jingwen Zhang,Guiying Xu,Feng Tao,Guang Zeng,Moyao Zhang,Yang (Michael) Yang,Yaowen Li,Yongfang Li |
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Abstract: | Neutral‐colored semitransparent organic solar cells (ST‐OSCs) have attracted considerable attention owing to their unique application in no‐visual‐obstacle building‐integrated photovoltaics. Toward this promising potential application, a synergistic effect is first proposed by employing a dielectric mirror and ternary photoactive layer with near‐infrared absorption to tune the color perception as well as ST‐OSC performance precisely. As a result, a neutral‐color ST‐OSC with high average transmittance of over 21% is successfully constructed, and a remarkable color‐rendering index approaching 100 and high power conversion efficiency (PCE) of 9.37% are simultaneously achieved. To the best of our knowledge, this is the highest PCE reported for neutral‐color ST‐OSCs to date. Importantly, this synergistic effect is demonstrated to be a universal strategy that is not only suitable for various photoactive layer systems, but can also be implanted in flexible substrate. The resulting neutral‐color flexible ST‐OSCs also show a promising PCE of 8.76%. |
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Keywords: | color rendering index flexible solar cells neutral color semitransparent organic solar cells ternary photoactive layers |
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