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LPCVD polysilicon passivating contacts for crystalline silicon solar cells

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By Bart Geerligs, Maciej Stodolny, Yu Wu, Gaby Janssen & Ingrid Romijn, ECN Solar Energy, Petten, & Martijn Lenes & Jan-Marc Luchies, Tempress Systems BV, Vaassen, The Netherlands

This paper presents the progress made by ECN and Tempress in developing and integrating the processing of polysilicon passivating contacts aimed at use in low-cost industrial cell production.

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This issue of Photovoltaics International focuses on the steady adoption of PERC as the technology of choice for providing a quick boost to cell performances. Our chief analyst, Finlay Colville, reports that PERC is a key driver for internal technology roadmaps of all silicon cell providers and is indirectly influencing the development of other technologies in competing n-type and thin-film segments. However, PERC is not without its drawbacks, and one of these is its increased susceptibility to light-induced degradation. Other highlights include ISC Konstanz on the future of back-contact technology and ECN on the development of a new technique for minimising recombination losses in silicon solar cells.

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