Carbon nanotube-amorphous silicon hybrid solar cell with improved conversion efficiency

We report a hybrid solar cell based on single walled carbon nanotubes (SWNTs) interfaced with amorphous silicon (a-Si). The high quality carbon nanotube network was dry transferred onto intrinsic a-Si forming Schottky junction for metallic SWNT bundles and heterojunctions for semiconducting SWNT bun...

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Bibliographic Details
Published in:Nanotechnology 2016-05, Vol.27 (18), p.185401-185401
Main Authors: Funde, Adinath M, Nasibulin, Albert G, Syed, Hashmi Gufran, Anisimov, Anton S, Tsapenko, Alexey, Lund, Peter, Santos, J D, Torres, I, Gandía, J J, Cárabe, J, Rozenberg, A D, Levitsky, Igor A
Format: Article
Language:English
Subjects:
Amorphous silicon
Bundles
carbon nanotube
carbon nanotube-silicon heterojunction
Conversion
heterojunction solar cell
Nanostructure
Photovoltaic cells
Single wall carbon nanotubes
Solar cells
Thin films
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Summary:We report a hybrid solar cell based on single walled carbon nanotubes (SWNTs) interfaced with amorphous silicon (a-Si). The high quality carbon nanotube network was dry transferred onto intrinsic a-Si forming Schottky junction for metallic SWNT bundles and heterojunctions for semiconducting SWNT bundles. The nanotube chemical doping and a-Si surface treatment minimized the hysteresis effect in current-voltage characteristics allowing an increase in the conversion efficiency to 1.5% under an air mass 1.5 solar spectrum simulator. We demonstrated that the thin SWNT film is able to replace a simultaneously p-doped a-Si layer and transparent conductive electrode in conventional amorphous silicon thin film photovoltaics.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/27/18/185401