Low-cost so­lar cells

Global Times US Edition - - BIZOVE -

Chi­nese re­searchers have de­vel­oped a new pho­to­voltaic tech­nique that could im­prove the ef­fi­ciency of so­lar cells and re­duce their cost, the Xin­hua News Agency re­ported on Mon­day.

The new tech­nique uses high-ef­fi­ciency hole-an­d­elec­tron-se­lec­tive lay­ers for both po­lar­i­ties on sil­i­con sub­strate, which could im­prove the ef­fi­ciency of so­lar cells to 15.1 per­cent, said Peng Shang­long, head of a re­search team at Lanzhou Univer­sity in North­west China’s Gansu Prov­ince.

He added that the new tech­nique would al­low the po­ten­tial model of so­lar cells to avoid high-tem­per­a­ture pro­cesses, mak­ing it low-cost and ef­fi­cient. “Be­cause of high equip­ment costs and com­plex tech­niques, tra­di­tional so­lar cells have long been lim­ited in use on a large scale.”

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