Issue 15, 2015

Dynamic interface charge governing the current–voltage hysteresis in perovskite solar cells

Abstract

The accumulation of mobile ions causes space charge at interfaces in perovskite solar cells. There is a slow dynamic process of ion redistribution when the bias is changed. The interface charge affects band bending and thus the photocurrent of the solar cells. Consequently the dynamic process of the interface charge governs the current–voltage hysteresis. Very low interface charge density leads to hysteresis-free devices.

Graphical abstract: Dynamic interface charge governing the current–voltage hysteresis in perovskite solar cells

Supplementary files

Article information

Article type
Communication
Submitted
23 Jan 2015
Accepted
03 Mar 2015
First published
05 Mar 2015

Phys. Chem. Chem. Phys., 2015,17, 9613-9618

Author version available

Dynamic interface charge governing the current–voltage hysteresis in perovskite solar cells

H. Zhang, C. Liang, Y. Zhao, M. Sun, H. Liu, J. Liang, D. Li, F. Zhang and Z. He, Phys. Chem. Chem. Phys., 2015, 17, 9613 DOI: 10.1039/C5CP00416K

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