Title :
Effect of hexagonal nanoconical hole arrays based solar cells on the light absorption enhancement
Author :
Kexiang Hu ; Enjie Ding ; Peihua Wangyang ; Qingkang Wang
Author_Institution :
Nat. & Local Joint Eng. Lab. of Internet Technol. on Mine, China Univ. of Min. & Technol., Xuzhou, China
Abstract :
The optical properties of the silicon hexagonal nanoconical hole (SiHNH) arrays based solar cells is systematically studied via simulation based on Rigorous Coupled Wave Analysis (RCWA) and Modal Transmission Line (MTL) theory. An ultimate efficiency of the optimized SiHNH arrays based solar cell is up to 31.92%, 4.52% higher than that of silicon hexagonal nanoconical frustum (SiHNF) arrays. The absorption enhancement of the SiHNH arrays is due to its lower reflectance and more supported guided-mode resonances, and the enhanced ultimate efficiency is insensitive to bottom diameter (Dbot) of nanoconical hole and the incident angle. The result provides an additional guideline for the nanostructure surface texturing fabrication design for photovoltaic applications.
Keywords :
light absorption; silicon; solar cell arrays; surface texture; thin film devices; transmission line theory; MTL theory; RCWA; Si; SiHNH array based solar cells; guided-mode resonance; light absorption enhancement; modal transmission line theory; nanoconical hole bottom diameter; nanostructure surface texturing fabrication; optical property; photovoltaic application; rigorous coupled wave analysis; silicon hexagonal nanoconical hole array; Absorption; Optical arrays; Optical films; Optimized production technology; Photovoltaic cells; Silicon; Guided resonance; Light tapping; Silicon hexagonal nanoconical hole;
Conference_Titel :
Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO), 2014 International Conference on
DOI :
10.1109/3M-NANO.2014.7057352
