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Bilayer hybrid solar cells based on triphenylamine-thienylenevinylene dye and TiO2

Unger, Eva L. LU ; Ripaud, Emilie ; Leriche, Philippe ; Cravino, Antonio ; Roncali, Jean ; Johansson, Erik M. J. ; Hagfeldt, Anders and Boschloo, Gerrit (2010) In Journal of Physical Chemistry C 114(26). p.11659-11664
Abstract

Photoinduced energy conversion from multilayers of organic dye on dense TiO2 films was investigated in bilayer hybrid solar cells. Dye layers of varying thicknesses were prepared by spin-casting the star-shaped dye [tris(dicyano-vinyl-2-thienyl)phenyl]amine (1) from solutions onto dense TiO2 on conducting glass substrates. A spin-cast layer of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and graphite powder was used for contacting the devices. Excitons generated in the dye multilayer contribute to the power conversion efficiency, reaching a maximum of ca. 0.3% at a dye layer thickness of ca. 8 nm for the devices described herein. For dye layers exceeding 5 nm, the cell performance becomes... (More)

Photoinduced energy conversion from multilayers of organic dye on dense TiO2 films was investigated in bilayer hybrid solar cells. Dye layers of varying thicknesses were prepared by spin-casting the star-shaped dye [tris(dicyano-vinyl-2-thienyl)phenyl]amine (1) from solutions onto dense TiO2 on conducting glass substrates. A spin-cast layer of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and graphite powder was used for contacting the devices. Excitons generated in the dye multilayer contribute to the power conversion efficiency, reaching a maximum of ca. 0.3% at a dye layer thickness of ca. 8 nm for the devices described herein. For dye layers exceeding 5 nm, the cell performance becomes limited by the exciton diffusion length LED and the hole mobility in the organic layer. Using dye multilayers is a viable way to increase light harvesting in solid-state dye-sensitized solar cells.

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author
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publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
114
issue
26
pages
6 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:77954294163
ISSN
1932-7447
DOI
10.1021/jp102946z
language
English
LU publication?
no
id
d87d20a0-0c8a-4bd9-b181-7e9f00c2f329
date added to LUP
2021-01-23 12:34:11
date last changed
2022-04-11 07:50:50
@article{d87d20a0-0c8a-4bd9-b181-7e9f00c2f329,
  abstract     = {{<p>Photoinduced energy conversion from multilayers of organic dye on dense TiO<sub>2</sub> films was investigated in bilayer hybrid solar cells. Dye layers of varying thicknesses were prepared by spin-casting the star-shaped dye [tris(dicyano-vinyl-2-thienyl)phenyl]amine (1) from solutions onto dense TiO<sub>2</sub> on conducting glass substrates. A spin-cast layer of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and graphite powder was used for contacting the devices. Excitons generated in the dye multilayer contribute to the power conversion efficiency, reaching a maximum of ca. 0.3% at a dye layer thickness of ca. 8 nm for the devices described herein. For dye layers exceeding 5 nm, the cell performance becomes limited by the exciton diffusion length <i>L</i><sub>ED</sub> and the hole mobility in the organic layer. Using dye multilayers is a viable way to increase light harvesting in solid-state dye-sensitized solar cells.</p>}},
  author       = {{Unger, Eva L. and Ripaud, Emilie and Leriche, Philippe and Cravino, Antonio and Roncali, Jean and Johansson, Erik M. J. and Hagfeldt, Anders and Boschloo, Gerrit}},
  issn         = {{1932-7447}},
  language     = {{eng}},
  month        = {{07}},
  number       = {{26}},
  pages        = {{11659--11664}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Physical Chemistry C}},
  title        = {{Bilayer hybrid solar cells based on triphenylamine-thienylenevinylene dye and TiO<sub>2</sub>}},
  url          = {{http://dx.doi.org/10.1021/jp102946z}},
  doi          = {{10.1021/jp102946z}},
  volume       = {{114}},
  year         = {{2010}},
}