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Journal of Photonics for Energy

One-step, low-temperature deposited perovskite solar cell utilizing small molecule additive
Author(s): Chun-Chao Chen; Zirou Hong; Gang Li; Qi Chen; Huanping Zhou; Yang Yang
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Paper Abstract

In the current study, the perovskite absorber (CH3NH3PbI3) is processed via one-step deposition employing the small molecule additive, BmPyPhB, which can be dissolved in dimethylformamide along with precursors. Here, 1,3-Bis[3,5-di(pyridin-3-yl)phenyl]benzene (BmPyPhB) functions as the morphology controller to introduce an intermediate phase during perovskite film growth, which allows well-defined and precrystallized domains formed before the annealing treatment. Furthermore, a chloroform solvent wash procedure is applied afterward to remove BmPyPhB from perovskite without damaging the predetermined morphology. Thus, postannealing as low as 100°C for 5 min can achieve the optimal power conversion efficiency of 8% in a planar-structured inverted solar cell.

Paper Details

Date Published: 16 January 2015
PDF: 8 pages
J. Photon. Energy. 5(1) 057405 doi: 10.1117/1.JPE.5.057405
Published in: Journal of Photonics for Energy Volume 5, Issue 1
Show Author Affiliations
Chun-Chao Chen, Univ. of California, Los Angeles (United States)
Zirou Hong, Univ. of California, Los Angeles (United States)
Gang Li, Univ. of California, Los Angeles (United States)
Qi Chen, Univ. of California, Los Angeles (United States)
Huanping Zhou, Univ. of California, Los Angeles (United States)
Yang Yang, Univ. of California, Los Angeles (United States)


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