標題: Numerical study of a highly efficient solar cell with graded band gap design
作者: Tan, Ming-Hsuan
Tseng, Hung-Ruei
Kuo, Chien-Ting
Hsu, Shun-Chieh
Lo, Yen-Hua
Tsai, Che-Pin
Cheng, Yuh-Jen
Lin, Chien-Chung
光電系統研究所
照明與能源光電研究所
Institute of Photonic System
Institute of Lighting and Energy Photonics
公開日期: 1-May-2015
摘要: A linearly graded band gap design in the intrinsic layer of a p-i-n solar cell is studied numerically. An ideal model using Matlab (R) is built and the device performance is calculated using continuity equations and an effective band gap model under various band gap combinations. The power conversion efficiency (PCE) can be as high as 30.21%, while the abrupt junction reference device only exhibits 29.25% under the same parameters. This design is also evaluated using the commercial TCAD software APSYS (R), and the calculations show optimal efficiency enhancements of about 1.14-fold that of the abrupt junction device in an AlAs/GaAs system and 2.05-fold that in an InGaN/GaN system. (C) 2015 The Japan Society of Applied Physics
URI: http://dx.doi.org/10.7567/JJAP.54.054301
http://hdl.handle.net/11536/124837
ISSN: 0021-4922
DOI: 10.7567/JJAP.54.054301
期刊: JAPANESE JOURNAL OF APPLIED PHYSICS
Volume: 54
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