One-step, low-temperature deposited perovskite solar cell utilizing small molecule additive

Chun-Chao Chen; Zirou Hong; Gang Li; Qi Chen; Huanping Zhou; Yang Yang

doi:10.1117/1.JPE.5.057405

16 January 2015 One-step, low-temperature deposited perovskite solar cell utilizing small molecule additive

Chun-Chao Chen, Zirou Hong, Gang Li, Qi Chen, Huanping Zhou, Yang Yang

Author Affiliations +

Journal of Photonics for Energy, Vol. 5, Issue 1, 057405 (January 2015). https://doi.org/10.1117/1.JPE.5.057405

Abstract

In the current study, the perovskite absorber (CH_₃NH₃PbI₃) 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.

Citation Download Citation

Chun-Chao Chen, Zirou Hong, Gang Li, Qi Chen, Huanping Zhou, and Yang Yang "One-step, low-temperature deposited perovskite solar cell utilizing small molecule additive," Journal of Photonics for Energy 5(1), 057405 (16 January 2015). https://doi.org/10.1117/1.JPE.5.057405

Published: 16 January 2015

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