Abstract：
UNLABELLED:To fabricate high-performance metal-halide perovskite solar cells, a thermal annealing process is indispensable in preparing high quality perovskite film. And usually such annealing is performed on hot plate. However hot-plate annealing could cause problems such as inhomogeneous heating (induced by non-tight contact between the sample and the plate), it is also not fit for large scale manufactory. In this paper, we conduct the annealing process in air-heated oven under various humidity environments, and compared the resulted films (CH3NH3PbI(3-x)Cl(x)) and devices (Al/PC61BM/CH3NH3PbI(3-x)Cl(x)/ PEDOT:PSS/ITO/glass) with that obtained via hot-plate annealing. It is found that the air-heated-oven annealing is superior to the hot-plate annealing: the annealing time is shorter, the films are more uniform, and the devices exhibit higher power conversion efficiency and better uniformity. The highest efficiencies achieved for the oven and hot-plate annealing processes are 14.9% and 13.5%, and the corresponding standard deviations are 0.5% and 0.8%, respectively. Our work here indicates that air-heated-oven annealing could be a more reliable and more efficient way for both lab research and large-scale production.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Zhou Q,Jin Z,Li H,Wang Jdoi
10.1038/srep21257subject
Has Abstractpub_date
2016-02-16 00:00:00pages
21257issn
2045-2322pii
srep21257journal_volume
6pub_type
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