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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 19, Iss. S3 — May. 9, 2011
  • pp: A361–A368

Enhancement of the power conversion efficiency by expanding the absorption spectrum with fluorescence layers

Fei Wang, Zhijian Chen, Lixin Xiao, Bo Qu, and Qihuang Gong  »View Author Affiliations


Optics Express, Vol. 19, Issue S3, pp. A361-A368 (2011)
http://dx.doi.org/10.1364/OE.19.00A361


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Abstract

The spectral response of Poly(3-hexylthiophene) (P3HT): 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM) heterojunction film is between 350 nm and 650 nm, meaning that a lot of the sunlight is lost at ultraviolet and infrared regions. We fabricated solar cells by the attachment of a fluorescence layer which absorbs UV light, and emit visible light which will be re-used by P3HT, and thus the absorption spectrum is expanded. Since N,N’-bis(3-methylphenyl)-N,N’-bis(phenyl)-benzidine (TPD) has high reflectance in the visible range, the usage of UV light will not manifest; when LiF is added as an antireflection layer, PCE was enhanced from 2.50% to 2.68%.

© 2011 OSA

OCIS Codes
(040.5350) Detectors : Photovoltaic
(160.2540) Materials : Fluorescent and luminescent materials
(160.5470) Materials : Polymers
(300.1030) Spectroscopy : Absorption

ToC Category:
Photovoltaics

History
Original Manuscript: March 22, 2011
Revised Manuscript: April 17, 2011
Manuscript Accepted: May 4, 2011
Published: May 6, 2011

Citation
Fei Wang, Zhijian Chen, Lixin Xiao, Bo Qu, and Qihuang Gong, "Enhancement of the power conversion efficiency by expanding the absorption spectrum with fluorescence layers," Opt. Express 19, A361-A368 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-S3-A361


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