期刊
JOURNAL OF APPLIED PHYSICS
卷 108, 期 12, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3506702
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资金
- French Research Agency (ANR)
- Rhone-Alpes region
We propose a photovoltaic solar cell design based on a 100 nm thick absorbing layer made of hydrogenated amorphous silicon and patterned as a two-dimensional planar photonic crystal (PPC). After scanning the parameters of the PPC within the patterned cell, optical simulations performed on the best configuration obtained reveal that a relative increase in the integrated absorption inside the active layer of 28% can be expected between 300 and 720 nm compared to an equivalent but nonpatterned cell under normal incidence. Besides, this integrated absorption is found to be robust toward the angle of incidence. Incident light is efficiently coupled to leaky mode resonances of the PPC provided an appropriated tuning of its parameters. The effects of the reflectance of the back contact coupled to a conductive optical spacer on the absorption are also discussed. (c) 2010 American Institute of Physics. [doi: 10.1063/1.3506702]
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