GreatCell achieves 32% efficiency for inorganic perovskite solar cell

Australian manufacturer GreatCell has built a cell with roll-to-roll coating technology. It designed it without a hole transport layer (HTL) and used carbon composite back contacts, which offer excellent electrical conductivity.GreatCell Solar has achieved a power conversion efficiency of 32% for a 100% inorganic perovskite cell designed for indoor applications. "This is a single-junction, single cell with linear conduction width of 1.5 cm to simulate product-sized cells," the company's managing director, Paul Moonie, told pv magazine. "The inorganic perovskite crystallizes at room temperature, ...

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