Bias-dependent effects in planar perovskite solar cells based on CH3NH3PbI3−xClx films

• Published in: Journal of colloid and interface science Vol. 453; pp. 9 - 14
• Main Authors: Lyu, Miaoqiang, Yun, Jung-Ho, Ahmed, Rasin, Elkington, Daniel, Wang, Qiong, Zhang, Meng, Wang, Hongxia, Dastoor, Paul, Wang, Lianzhou
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01-09-2015
• Subjects: Bias-dependent effect; CH3NH3PbI3−xClx; Current–voltage hysteresis; Current–voltage measurement; Perovskite solar cells; Current–voltage hysteresis; Current–voltage measurement; Bias-dependent effect; CH3NH3PbI3−xClx; Perovskite solar cells
• ISSN: 0021-9797; 1095-7103
• DOI: 10.1016/j.jcis.2015.04.041

[Display omitted]
A unique bias-dependent phenomenon in CH3NH3PbI3−xClx based planar perovskite solar cells has been demonstrated, in which the photovoltaic parameters derived from the current–voltage (I–V) curves are highly dependent on the initial positive bias of the I–V measurement. In FTO/CH3NH3PbI3−xClx/Au devices, the open-circuit voltage and short-circuit current increased by ca. 337.5% and 281.9% respectively, by simply increasing the initial bias from 0.5V to 2.5V.