期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 8, 期 6, 页码 1902-1908出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9tc06662d
关键词
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资金
- European Union Programme for Research and Innovation Horizon 2020 (2014-2020) under the Marie Skodowska-Curie Grant Agreement PerovSAMs [747599]
- Spanish Ministry of Economy and Competitiveness (MINECO) via the Unidad de Excelencia Maria de Maeztu [MDM-2015-0538, MAT2017-88821-R, RTI2018-095362-A-I00, PCIN-2015-255, PCIN-2017-014]
- Generalitat Valenciana [Prometeo/2016/135]
- China Scholarship Council (CSC)
The dual-source vacuum deposition of 2D perovskite films of the type PEA(2)PbX(4), (PEA = phenethylammonium and X = I-, Br-, or a combination of both) is presented. Low-temperature deposited 2D perovskite films showed high crystallinity with the expected trend of bandgap as a function of halide type and concentration. Importantly, we observed an unavoidable halide cross-contamination among different deposition runs, as well as a strong dependence of the material quality on the type of halide precursors used. These findings should be taken into account in the development of vacuum processing for low-dimensional mixed halide perovskites.
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