Enhancement of the Performance of Perovskite Solar Cells, LEDs, and Optical Amplifiers by Anti-Solvent Additive Deposition.

Ngo, Thi Tuyen; Suarez, Isaac; Antonicelli, Gabriella; Cortizo-Lacalle, Diego; Martinez-Pastor, Juan P; Mateo-Alonso, Aurelio; Mora-Sero, Ivan · Adv Mater · 2017

basic_science · Level V

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Abstract

The efficiency of perovskite optoelectronic devices is increased by a novel method; its suitability for perovskite solar cells, light-emitting diodes, and optical amplifiers is demonstrated. The method is based on the introduction of organic additives during the anti-solvent step in the perovskite thin-film deposition process. Additives passivate grain boundaries reducing non-radiative recombination. The method can be easily extended to other additives.