Perovskite-silicon tandem solar cell treated with n-Butanol achieves 29.4% efficiency

Researchers in China have built a tandem-perovskite solar cell with a top perovskite device based on an absorber treated with n-butanol, which reportedly reduces the detrimental effects of moisture in manufacturing processes carried out in air environment. The result is a tandem cell with improved charge collection. A group of researchers led by the Nanjing University in China has designed a perovskite-silicon tandem solar cell with a new solvent engineering strategy that utilizes n-butanol (nBA), which is also called normal butyl alcohol and is a primary clear, colorless alcohol used as a cleaning ...

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