Archives in Chemical Research Open Access

Fundamental properties of hybrid perovskite materials for renewable energy applications

9^th Edition of International Conference on Biofuels and Bioenergy

March 29-30, 2018 Edinburgh, Scotland

Sam HY HSU

City University of Hong Kong, China

Posters & Accepted Abstracts: Arch Chem Res

Abstract:

Lead-free organic-inorganic tin halide perovskites were prepared and investigated by a rapid screening technique utilizing a modified scanning electrochemical microscope (SECM). We studied liquid junction photoelectrochemical (PEC) cells based on p-type methylammonium tin halide (MASnI3-xBrx) perovskites employing the benzoquinone (BQ) redox couple, BQ/ BQ��, in dichloromethane (CH2Cl2). We found that the optimized Sn-based mixed halide perovskite, MASnI0.5Br2.5, exhibits enhanced performance and stability in liquid-junction PEC cells, with a power conversion efficiency of 1.51% (an increase of 20.8%) and a photovoltaic lifetime of 175 min (an increase of 75.0%), in comparison to MASnI3 perovskites. sam.hyhsu@cityu.edu.hk