Photoconductivity of CH3NH3PbI3 thin film perovskite stored in ambient atmosphere

5^th World Congress on Physics

July 17-18, 2018 Prague, Czech Republic

Bizuneh Gebremichael

Addis Ababa University, Ethiopia
Debre Berhan University, Ethiopia

Posters & Accepted Abstracts: J Laser Opt Photonics

Abstract :

Time dependent conductivity loss in CH3NH3PbI3 thin film perovskite stored in ambient atmosphere was studied based on electrical and optical measurements. Recent investigations on thin film perovskite solar cell suggest that in the steady state operation of the device, the Voc is unchanged by continuous illumination of light. Rather the reduction in the power conversion efficiency is caused by significant reduction of the short circuit current (Jsc). In this paper, the effect of light on the optical absorption and electrical conductivity of the CH3NH3PbI3 thin film which is deposited on a glass substrate is investigated. The temperature dependent conductivity measurements indicated that the dominant conduction mechanism in the film perovskite is electronic rather than ionic.

Biography :

E-mail: bizunehme@gmail.com