Bias-dependent effects in planar perovskite solar cells based on CH3NH3PbI(3-x)Clx films

Miaoqiang Lyu; Jung-Ho Yun; Rasin Ahmed; Daniel Elkington; Qiong Wang; Meng Zhang; Hongxia Wang; Paul Dastoor; Lianzhou Wang

doi:10.1016/j.jcis.2015.04.041

Bias-dependent effects in planar perovskite solar cells based on CH3NH3PbI(3-x)Clx films

J Colloid Interface Sci. 2015 Sep 1:453:9-14. doi: 10.1016/j.jcis.2015.04.041. Epub 2015 Apr 27.

Authors

Miaoqiang Lyu¹, Jung-Ho Yun¹, Rasin Ahmed², Daniel Elkington³, Qiong Wang¹, Meng Zhang¹, Hongxia Wang⁴, Paul Dastoor⁵, Lianzhou Wang⁶

Affiliations

¹ Nanomaterials Centre, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia.
² School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4001, Australia.
³ Centre for Organic Electronics, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.
⁴ School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4001, Australia. Electronic address: [email protected].
⁵ Centre for Organic Electronics, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia. Electronic address: [email protected].
⁶ Nanomaterials Centre, School of Chemical Engineering and AIBN, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia. Electronic address: [email protected].

PMID: 25956128
DOI: 10.1016/j.jcis.2015.04.041

Abstract

A unique bias-dependent phenomenon in CH3NH3PbI(3-x)Cl(x) 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/CH3NH3PbI(3-x)Cl(x)/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 0.5 V to 2.5 V.

Keywords: Bias-dependent effect; CH(3)NH(3)PbI(3−)(x)Cl(x); Current–voltage hysteresis; Current–voltage measurement; Perovskite solar cells.