16 February 2018 Silicon periodic nanostructures for high efficiency absorption in thin film solar cells
Author Affiliations +
Abstract
Enhancing the light absorption in ultrathin-film silicon solar cells is important for improving efficiency and reducing cost. In this paper, we report a highly effecient cosine periodic nanostructure as light trapping texture. The design and fabrication as well as measurement of cosine nanotextures were presented. The optimized structure yields an average reflectance of 7.07% at an equivalent silicon thickness of 10μm, much better than planar and random pyramid structures. The measurements demonstrate that the absorptions in ultrathin film solar cells are very close to the Yablonovitch limit for the entire solar spectrum and insensitive to the angle of the light. This approach is applicable to various thicknesses and promising in future glass-based thin film solar cells.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiaowei Guo, Xiaowei Guo, Hengchang Lu, Hengchang Lu, Guolin Luo, Guolin Luo, Cheng Yang, Cheng Yang, Shaorong Li, Shaorong Li, } "Silicon periodic nanostructures for high efficiency absorption in thin film solar cells", Proc. SPIE 10527, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VII, 1052716 (16 February 2018); doi: 10.1117/12.2301294; https://doi.org/10.1117/12.2301294
PROCEEDINGS
6 PAGES


SHARE
Back to Top