半透明钙钛矿太阳能电池的技术关键

Key Technology of Semitransparent Perovskite Solar Cells

基于ABX3晶体结构材料的新型钙钛矿太阳能电池具有光电转换效率高、可溶液加工以及低温工艺兼容等优势。与此同时,利用钙钛矿材料合成方法简单、带隙可调以及膜厚和透过率可控等优点制备的半透明钙钛矿太阳能电池为薄膜光伏的发展带来了新的契机,在建筑集成光伏和叠层光伏等领域应用前景广阔。开发高效且高稳定的半透明钙钛矿太阳能电池已成为目前光伏领域的研究重点。本文系统综述了半透明钙钛矿太阳能电池的各功能层(钙钛矿光活性层、电荷传输层和电极)材料选择、光学特性调控、电学特性优化以及制备工艺调控等技术策略,同时提出了对半透明钙钛矿太阳能电池未来发展的一些展望。

The new perovskite solar cells based on ABX3 crystal structure material have the advantages of high photoelectric conversion efficiency,solution processability,and low temperature process compatibility.At the same time,semitransparent perovskite solar cells prepared by using the advantages of simple synthesis methods,adjustable band gap and controllable film thickness and transmittance of perovskite materials have brought new opportunities for the development of thin film photovoltaics.Semitransparent solar cells have broad application prospects in building-integrated photovoltaics and tandem photovoltaics.Developing efficient and highly stable semitransparent perovskite solar cells has become a research focus in the photovoltaic field.This article systematically reviews the technical strategies for selecting functional layer(perovskite photoactive layer,charge transport layer and electrode)materials,regulating optical properties,optimizing electrical properties,and regulating the preparation processes of semitransparent perovskite solar cells.At the same time,some prospects for the future development of semitransparent perovskite solar cells are presented.