Title :
Optimization of graphene/silicon heterojunction solar cells
Author :
Lin, Yuxuan ; Xie, Dan ; Chen, Yu ; Feng, Tingting ; Shao, Qiming ; Tian, He ; Ren, Tianling ; Li, Xinming ; Li, Xiao ; Fan, Lili ; Wang, Kunlin ; Wu, Dehai ; Zhu, Hongwei
Author_Institution :
Tsinghua Nat. Lab. for Inf. Sci. & Technol. (TNList), Tsinghua Univ., Beijing, China
Abstract :
Optimization methods, including layer number modulation, graphene work function, and antireflection film addition, are proposed to improve the performance of graphene/semiconductor heterojunction solar cells. Simulation results demonstrate that a maximal conversion efficiency of ~11% can be achieved. Schottky junction solar cells based on modified graphene films and silicon pillar arrays have been fabricated and are found to deliver enhanced cell performance with efficiencies up to 5.5%.
Keywords :
antireflection coatings; elemental semiconductors; graphene; optimisation; semiconductor heterojunctions; semiconductor thin films; silicon; solar cells; C-Si; Schottky junction solar cell; antireflection film; graphene films; graphene work function; layer number modulation; optimization; semiconductor heterojunction solar cell; silicon pillar array; Electrodes; Metals; Performance evaluation; Photovoltaic cells; Resistance; Silicon; antireflection; graphene; heterojunction; solar cells; work function;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4673-0064-3
DOI :
10.1109/PVSC.2012.6318119
