期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 5, 页码 3272-3279出版社
AMER CHEMICAL SOC
DOI: 10.1021/am508006q
关键词
silver nanowires; graphene oxide; solution-processed; transparent conductive electrode; hybrid silicon solar cell
资金
- National Basic Research Program of China (973 Program) [2012CB932402]
- National Natural Science Foundation of China [91333208, 61176057, 91123005]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Natural Science Foundation of Jiangsu Province of China [BK20130310]
- Collaborative Innovation Center of Suzhou Nano Science and Technology
Hybrid solar cells based on n-Si/poly(3,4-ethylenedioxythiophene):poly(styrene- sulfonate) (PEDOT:PSS) heterojunction promise to be a low cost photovoltaic technology by using simple device structure and easy fabrication process. However, due to the low conductivity of PEDOT:PSS, a metal grid deposited by vacuum evaporation method is still required to enhance the charge collection efficiency, which complicates the device fabrication process. Here, a solution-processed graphene oxide (GO)-welded silver nanowires (AgNWs) transparent conductive electrode (TCE) was employed to replace the vacuum deposited metal grid. A unique sandwich structure was developed by embedding an AgNW network between PEDOT:PSS and GO with a figure-of-merit of 8.6 x 10(-3) O-1, which was even higher than that of sputtered indium tin oxide electrode (6.6 x 10(-3) O-1). A champion power conversion efficiency of 13.3% was achieved, because of the decreased series resistance of the TCEs as well as the enhanced built-in potential (Vbi) in the hybrid solar cells. The TCEs were obtained by facile low-temperature solution process method, which was compatible with cost-effective mass production technology.
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