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

Y. X. Xia ; L. T. Hou ; K. J. Ma ; B. A. Wang ; K. Xiong ; P. Y. Liu ; J. H. Liao ; S. S. Wen ; Ergang Wang (Institutionen för kemi- och bioteknik, Polymerteknologi)
Journal of Physics D-Applied Physics (0022-3727). Vol. 46 (2013), 30,
[Artikel, refereegranskad vetenskaplig]

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.



Denna post skapades 2013-08-09. Senast ändrad 2014-09-02.
CPL Pubid: 180958

 

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Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Polymerteknologi (2005-2014)

Ämnesområden

Teknisk fysik

Chalmers infrastruktur