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conferenceseries.com Joint Conference
July 17-18, 2017 Chicago, USA
International Conference on
DIAMOND AND CARBON MATERIALS & GRAPHENE AND SEMICONDUCTORS
Volume 6, Issue 6 (Suppl) J Material Sci Eng, an open access journal
ISSN: 2169-0022
Diamond and Carbon 2017 & Graphene 2017
July 17-18, 2017
Graphene-oxide doped PEDOT: PSS as a superior whole transport material for high-efficiency
perovskite solar cell
Shengzhong Frank Liu1,2, Jinzhi Niu1, Dong Yang1, Xiaodong Ren1, Zhou Yang1, Yucheng Liu1 and Wangen Zhao1
1Shaanxi Normal University, China
2Chinese Academy of Sciences, China
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.
Biography
Shengzhong Frank Liu is currently a Professor at Shaanxi Normal University and Dalian Institute of Chemical Physics, Chinese Academy of Science. After receiving
his PhD in 1992, from Northwestern University (USA), he worked in US for about 20 years in companies including United Solar, BP Solar and Argonne National
Laboratory. He recently accepted Professorship in China and started to build up his research labs in Xi’an and Dalian. His research interests include nanoscale
materials, thin film materials, solar energy materials, electrochemical deposition, and development of photovoltaic technologies.
Shengzhong Frank Liu et al., J Material Sci Eng 2017, 6:6(Suppl)
DOI: 10.4172/2169-0022-C1-076