Publication date: 11th March 2026
Semi-transparent OSCs (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. In this presentation, I will introduce the high performance STOSCs developed in my lab from multiple aspects, including the molecular design of narrow band gap electron acceptors, the device and optical engineering, etc. By synthesizing the organic electron acceptors with absorption edge extended into 1000 nm, we successfully increased the light utilization efficiency of STOSC, as well as improved the PCE and the AVT related to the energy conversion ability and the visible light transmittance ability, respectively. The diverse applications of STOSCs were demonstrated, such as smart greenhouse, thermal-insulating organic photovoltaics, flexibility, etc..
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