Will Indian solar manufacturers go back-contact to the future?

Indian PV manufacturers are looking beyond tunnel oxide passivated contact (TOPCon) solar. Back-contact (BC) devices are an enticing prospect but many feel the technology is not mature enough. Uma Gupta considers the cost, yield, and reliability challenges that BC solar has to overcome. From pv magazine 10/24. Most PV manufacturers in India have migrated their module production from passivated emitter rear contact (PERC) to n-type TOPCon technology. TOPCon is now the preferred option for those entering mainstream, large-scale cell production, or expanding production capacity. Even as TOPCon is ...

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