Fast vaporizing anti-solvent for high crystalline perovskite to achieve high performance perovskite solar cells
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- Fast vaporizing anti-solvent for high crystalline perovskite to achieve high performance perovskite solar cells
- Kim, Gi-Hwan; Jeong, Jaeki; Jang, Hyungsu; Kim, Jae Won; Kim, Jin Young
- Perovskite solar cells; Anti-solvent; Morphology; Boiling point; Surface coverage
- Issue Date
- ELSEVIER SCIENCE SA
- THIN SOLID FILMS, v.661, no., pp.122 - 127
- We have deeply studied vaporized anti-solvents effects on the perovskite solar cell performance. Various non polar anti-solvents were tested to achieve the high quality perovskite film. Depending on the boiling point of the anti-solvent, the surface morphology is dramatically changed. In case of high boiling point anti-solvent, 1,2-dichlorobenzene (180.5 degrees C) remains on the perovskite surface even after thermal annealing at 100 degrees C for 10 min. However, the low boiling point chloroform (61.2 degrees C) anti-solvent makes smooth surface morphology of the perovskite film which leads the high performance of perovskite solar cells. This report introduces the vaporization of the anti-solvent affect the surface morphology that needs careful optimization for high performance perovskite solar cells.
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