柔性铜铟镓硒薄膜太阳能电池技术的发展及现状

Technical Development and Application of Flexible Cu(In,Ga)Se2 Solar Cells

柔性铜铟镓硒(CIGS)太阳能电池具有传统晶硅电池所不具备的柔性特征,在航空航天及移动可穿戴设备等方面具有广阔的应用前景。目前国内外已有多家公司从事柔性CIGS电池的研发及生产,柔性CIGS电池技术正进入大规模产业化的关键阶段。本文从柔性CIGS太阳能电池的结构出发,总结了柔性CIGS电池技术在不同的柔性衬底上的实验室发展历程。从柔性衬底上钠元素掺杂技术、吸收层低温沉积技术以及柔性衬底组件制备技术三个方面讨论了在柔性衬底上制备CIGS太阳能电池的关键技术,并简要介绍了该技术目前国际国内的产业化现状。在此基础上,提出为了更大规模推广柔性CIGS电池须在技术上进一步解决的问题,最后对该技术进行了前景展望。

Flexible Cu(In,Ga)Se2(CIGS)solar cells have broad application prospects in aerospace and wearable devices due to their flexible features not available in traditional crystalline silicon solar cells.After years of technology accumulation,there are currently many companies at home and abroad engaged in the research,development and production of flexible CIGS solar cells.This article first introduces the structure of the flexible Cu(In,Ga)Se2 solar cells and the history of the laboratory development of flexible CIGS solar cells on different flexible substrates.The key technologies of preparation on flexible substrates are discussed from three aspects:sodium doping technology on flexible substrates,lowtemperature deposition technology of absorption layer and preparation technology of flexible solar cell modules.On this basis,the technical problems of flexible CIGS solar cell which need to be further solved in order to popularize in a larger scale are introduced.Finally,the current situation is prospected for the technology.