Expert's Opinion

Inverted Perovskite Solar Cell Breaks 25% Efficiency Record

Researchers improve cell efficiency using a combination of molecules to address different issues.

Northwestern University researchers have raised the standards again for perovskite solar cells with a new development that helped the emerging technology hit new records for efficiency. The findings, published Nov. 17, 2023 in the journal Science, describe a dual-molecule solution to overcoming losses in efficiency as sunlight is converted to energy. By incorporating first, a molecule to address something called surface recombination, in which electrons are lost when they are trapped by defec...

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