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Updated: Jan 30, 2026

Making Record-efficiency SnS Solar Cells by Thermal Evaporation and Atomic Layer Deposition
Published on: May 22, 2015
Atomic layer deposition of a SnO2 electron-transporting layer for planar perovskite solar cells with a power
Seonghwa Jeong1, Seongrok Seo, Hyoungmin Park
1Department of Energy Science, Sungkyunkwan University, Suwon 440-746, Republic of Korea. hshin@skku.edu.
Abstract:
High-efficiency planar type perovskite solar cells were fabricated by atomic layer deposition (ALD) of SnO2 and subsequent annealing at 180 °C. As-dep. SnO2 layers prepared by post-annealing at 180 and 300 °C, respectively, were used as electron transporting layers (ETLs). ALD-TiO2 layers were also prepared by post annealing at 400 °C, and the thicknesses of all ETLs were around 12 nm. PL quenching, optical band gap measurement, UPS, and conductive AFM results show that SnO2 can more appropriately be used as an ETL compared to TiO2.
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