Shengzhong Frank Liu
Shaanxi Normal University, China
Title: Graphene-oxide doped PEDOT: PSS as a superior whole transport material for high-efficiency perovskite solar cell
Biography
Biography: Shengzhong Frank Liu
Abstract
Organometal perovskite has turned into a promising candidate material for next generation solar cells due to its high power conversion efficiency and low-cost processing. Herein we report a superior whole transport material (HTM) for significantly improved solar cell efficiency. Upon doing the commonly used PEDOT:PSS HTM by graphene oxide (GO), its hole mobility is increased from 5.55×10-5 to 1.57×10-4 cm2V-1s-1, leading to efficient hole extraction and low current leakage, therefore 20% higher power conversion efficiency comparing to the control device without the GO doping. The development open the opportunities for efficient HTMs based on the two-dimensional materials in the perovskite solar cells.