Low-cost solar cells
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.”