Open AccessVariation in efficiency with change in band gap and thickness in thin film amorphous silicon tandem heterojunction solar cells with AFORS-HET
Author(s) -
Muhammad Riaz,
Ahmed C. Kadhim,
Susan K. Earles,
Ahmad S. Azzahrani
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.00a626
Subject(s) - materials science , tandem , amorphous silicon , solar cell , silicon , heterojunction , polymer solar cell , optoelectronics , thin film , optics , plasmonic solar cell , band gap , theory of solar cells , amorphous solid , crystalline silicon , nanotechnology , composite material , physics , chemistry , crystallography
Numerical simulation of both single and double absorbing layers in amorphous silicon thin film solar cell is performed with the use of AFORS-HET. A single absorbing layer solar cell with both a-SiH and a-SiGeH is designed and compared with a tandem heterojunction solar cell, a-SiC/a-SiH/a-Si(i)/a-SiGeH. Design parameters are investigated, compared and optimized. The maximum efficiency for each single absorbing layer and for a tandem heterojunction thin film solar cell, a-SiC/a-SiH/a-Si(i)/a-SiGeH, is predicted. The results are validated by comparing with two different method of analysis.