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In-line quality control in highefficiency silicon solar cell production

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By Johannes M. Greulich, Jonas Haunschild, Stefan Rein, Lorenz Friedrich, Matthias Demant, Alexander Krieg & Martin Zimmer, Fraunhofer Institute for Solar Energy Systems ISE

There are numerous tools and methods available on the market for the optical and electrical quality control of high-efficiency silicon solar cells during their industrial production, and even more are discussed in the literature. This paper presents a critical review of the possibilities and limitations of these tools along the value chain, from wafer to cell, in the case of passivated emitter and rear cells, as well as a discussion of some showcases. Economic and technological challenges and future trends are addressed.

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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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