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Technology investments into advanced PV cell manufacturing have been at record levels in the past few years, with high-efficiency concepts seeing investment levels not seen since the days of turn-key thin-film lines a decade ago.

China-based PV manufacturer Yingli Green Energy and industrial technology partners, Dutch research centre ECN and equipment manufacturer Tempress, a subsidiary of Amtech Systems have fabricated their first IBC (Interdigitated Back Contact) n-type solar cells on 6-inch monocrystalline wafers at the manufacturer's pilot line in China.