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Approaches to Achieving High-performance Semitransparent Organic Solar Cells

Li Yaokai, Guan Shitao, Zuo Lijian, Chen Hongzheng

Chemical Journal of Chinese Universities(2023)

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Abstract
Semitransparent organic solar cells (STOSCs), capable of generating electricity and transmitting light simultaneously, are a highly promising new energy technology with potential applications in building-integrated photovoltaics for windows and roofs, as well as in agricultural greenhouses and transportation vehicles. However, the balance between the power conversion efficiency (PCE) and average visible light transmittance (AVT) of STOSCs remains a challenge. Ideal high-performance STOSC requires a balance between increasing the AVT and PCE, which involves selectively absorbing and utilizing non-visible spectrum photons for energy conversion while transmitting visible spectrum photons to maintain aesthetic appeal and color purity. In this review, we discuss and summarize various approaches to achieving high-performance STOSC from the perspectives of active layer tuning strategy, device engineering and multifunctional STOSCs. Our findings provide valuable insights and recommendations to promote the research and development of this promising energy technology.
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Key words
Semitransparent,Organic solar cell,Narrow bandgap material,Device engineering,Optical engineering
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