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Technical progress in high-efficiency solar cells and modules

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By Rulong Chen, Xi Xi, Jie Zhou, TingTing Yan & Qi Qiao, Wuxi Suntech Power Co., Ltd

This paper focuses on the technical progress of high-efficiency crystalline silicon solar cells and modules, specifically with regard to passivated emitter and rear cell (PERC) processes, module description and light induced degradation (LID) data. Through appropriate optimizations of the solar cell and module processes, the cell efficiency achieved in mass production is 21.3%, with module power exceeding 300W. To solve the LID problem, hydrogenation technology developed by UNSW is used, bringing the cell LID rate down to below 1%.

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The thirty-fifth issue of Photovoltaics International brings you insights into how investment in high-efficiency cell technology production appears to be showing no signs of slowing down and more about scientists from the R&D team at Canadian Solar look at so-called ‘black’ silicon, one of the new cell technology concepts beginning to gain currency. Additionally, how researchers from Germany’s Fraunhofer ISE take up the theme with a paper exploring the question of quality control in the production of high-efficiency silicon solar cells and not forgetting the growing importance of thin-film technologies in the overall PV mix.

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