Jiang-Tao Liu, Yun-Kai Cao, Hong Tong, Dai-Qiang Wang, Zhen-Hua Wu
College of Mechanical and Electrical Engineering, Guizhou Minzu University, Guiyang 550025, People's Republic of China. Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, People's Republic of China. Institute for Advanced Study, Nanchang University, Nanchang 330031, People's Republic of China.
Nanotechnology. 2018 Apr 6;29(14):144001. doi: 10.1088/1361-6528/aaab13.
The optical absorption of graphene-molybdenum disulfide photovoltaic cells (GM-PVc) in wedge-shaped metal-mirror microcavities (w-MMCs) combined with a spectrum-splitting structure was studied. Results showed that the combination of spectrum-splitting structure and w-MMC can enable the light absorption of GM-PVcs to reach about 65% in the broad spectrum. The influence of processing errors on the absorption of GM-PVcs in w-MMCs was 3-14 times lower than that of GM-PVcs in wedge photonic crystal microcavities. The light absorption of GM-PVcs reached 60% in the broad spectrum, even with the processing errors. The proposed structure is easy to implement and may have potentially important applications in the development of ultra-thin and high-efficiency solar cells and optoelectronic devices.
研究了具有光谱分裂结构的楔形金属镜微腔（w-MMC）中石墨烯-二硫化钼光伏电池（GM-PVc）的光吸收。结果表明，光谱分裂结构与w-MMC的结合可使GM-PVc在宽光谱中的光吸收达到约65%。加工误差对w-MMC中GM-PVc吸收的影响比楔形光子晶体微腔中GM-PVc的影响低3至14倍。即使存在加工误差，GM-PVc在宽光谱中的光吸收仍达到60%。所提出的结构易于实现，可能在超薄高效太阳能电池和光电器件的开发中具有潜在的重要应用。
