Pyramid shape of polymer solar cells: a simple solution to triple efficiency

Pyramid-shaped polymer solar cells fabricated on flexible substrates were investigated. Effective light trapping can be realized due to light reflection in all 360 degrees directions, and 100% space utilization is achieved when assembled into arrays. The power conversion efficiency is enhanced by 200% ([60] PCBM as the acceptor) and 260% ([70] PCBM as the acceptor) with a dihedral angle of 30 degrees between the opposite sides of the pyramid compared with a planar device, and a high V-oc of 3.5 V in series connection is obtained. Considering the material utilization, an angle of 90 degrees for pyramid-shaped polymer solar cells is proposed. Pyramid-shaped polymer solar cells are particularly suitable for installation on roof of vehicles and houses, which have limited surface area.

Hou, LintaoJinan University (författare)
Ma, K. J.Jinan University (författare)
Wang, B. A.Jinan University (författare)
Xiong, K.Jinan University (författare)
Liu, P. Y.Jinan University (författare)
Liao, J. H.South China University of Technology (författare)
Wen, S. S.South China University of Technology (författare)
Wang, Ergang,1981Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)ergang (författare)
Jinan UniversitySouth China University of Technology (creator_code:org_t)

Ingår i:Journal of Physics D: Applied Physics: IOP Publishing46:301361-64630022-3727

Av författaren/redakt...: Xia, Y. X.; Hou, Lintao; Ma, K. J.; Wang, B. A.; Xiong, K.; Liu, P. Y.; visa fler...; Liao, J. H.; Wen, S. S.; Wang, Ergang, 19 ...; visa färre...

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