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Article
Twice Deposition of Lead Iodide in Perovskite Solar Cells
Author(s)
Mouna Mohamed Abdoul-latif, XU Jia, YAO Jianxi and DAI Songyuan
Full-Text PDF XML 837 Views
DOI:10.17265/2159-5348/2018.03.006
Affiliation(s)
State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
ABSTRACT
This article brings up some explanations and clarifications about twice
deposition of lead iodide written in the previous article [1], after looking
into the twice deposition of lead iodide and carrying on the improving by a
layer of PbBr2 instead of PbI2, the short circuit current
density (Jsc) has decreased, allowing to explain the twice
deposition is, in fact, one deposition. The absorbance of perovskite will be
discussed. The substrate temperature is the most important parameter because it
can improve the efficiency of the perovskite solar cells, the substrate
temperature should be about 100 °C at the deposition of
lead iodide, and when the deposition of methylammonium iodide is done when the
substrate is still hot, the efficiency is also improved. The temperature during
the preparation is less important than the humidity, but the preparation in the
glovebox allows that the environmental conditions be controlled.
KEYWORDS
Deposition, perovskite, efficiency.
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