|Title:||Periodic anti-ring back reflectors for hydrogenated amorphous silicon thin-film solar cells||Authors:||Chen P.-Y.
|Issue Date:||2014||Journal Volume:||22||Journal Issue:||SUPPL. 4||Start page/Pages:||A1128-A1136||Source:||Optics Express||Abstract:||
Large and periodic anti-ring arrays are fabricated by using a monolayer of polymer/nanosphere hybrid technique and applied as back reflectors in substrate-type hydrogenated amorphous silicon (a-Si:H) thinfilm solar cells. The structure of each anti-ring comprises a nanodome centered inside a nanohole. The excitation of Bloch wave surface plasmon polaritons is observed in the Ag-coated anti-ring arrays. The nanodomes of the anti-ring arrays turn out to enhance large-angle light scattering and increase the effective optical path in the solar cell. The resulting efficiency of an ultrathin a-Si:H (thickness: 150 nm) solar cell is enhanced by 39% compared to that with a flat back reflector and by 13% compared to that with a nanohole back reflector. ? 2014 Optical Society of America.
|Appears in Collections:||應用力學研究所|
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