Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-05T04:18:59.711Z Has data issue: false hasContentIssue false
  • English
  • Français

Hybrid solar cells based on thin-film silicon and P3HT

A first step towards nano-structured devices*

Published online by Cambridge University Press:  10 January 2007

P.-J. Alet ,
S. Palacin ,
P. Roca I Cabarrocas ,
B. Kalache ,
M. Firon  and
R. de Bettignies
P.-J. Alet
Affiliation:
Laboratoire de chimie des surfaces et interfaces, CEA/DSM/DRECAM/SPCSI/LCSI, Centre de Saclay, Bât. 466, 91191 Gif-sur-Yvette Cedex, France Laboratoire de physique des interfaces et couches minces, École polytechnique, UMR 7647, 91128 Palaiseau Cedex, France
S. Palacin
Affiliation:
Laboratoire de chimie des surfaces et interfaces, CEA/DSM/DRECAM/SPCSI/LCSI, Centre de Saclay, Bât. 466, 91191 Gif-sur-Yvette Cedex, France
P. Roca I Cabarrocas
Affiliation:
Laboratoire de physique des interfaces et couches minces, École polytechnique, UMR 7647, 91128 Palaiseau Cedex, France
B. Kalache
Affiliation:
Laboratoire de physique des interfaces et couches minces, École polytechnique, UMR 7647, 91128 Palaiseau Cedex, France
M. Firon
Affiliation:
Laboratoire des composants pour le solaire, CEA/DRT/LITEN/LCS, Bât. 451, 91191 Gif-sur-Yvette Cedex, France
R. de Bettignies
Affiliation:
Laboratoire des composants pour le solaire, CEA/DRT/LITEN/LCS, Bât. 451, 91191 Gif-sur-Yvette Cedex, France
Get access

Abstract

Hybrid concepts based on a nanoscale combination of organic and inorganic semiconductors are a promising way to enhance the cost efficiency of solar cells through a better use of the solar spectrum, a higher aspect ratio of the interface, and the good processability of polymers.A new type of solar cells has been investigated. It is based on a heterojunction between regio-regular poly(3-hexylthiophene) as an organic electron donor and silicon as an inorganic electron acceptor. In a first step towards nano-structured devices, cells made of flat thin films of these materials have been studied as a model case of the heterojunction.The materials were characterized through ellipsometry and absorption spectroscopy. The devices were studied by means of their spectral response and their I-V characteristics. By combining these results, the contribution of each layer and the mechanisms of photocurrent generation are explained.The best cells to-date show a power conversion efficiency of 1.6% under AM 1.5 illumination, with a V oc of 0.704 V and a J sc of 4.22 mA/cm2.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 36 , Issue 3 , December 2006 , pp. 231 - 234
Copyright
© EDP Sciences, 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

De Bettignies, R., Leroy, J., Firon, M., Sentein, C., Synthetic Met. 156, 510 (2006) CrossRef
Sun, B.Q., Marx, E., Greenham, N.C., Nano Letters 3, 961 (2003) CrossRef
Coakley, K.M., Liu, Y.X., Goh, C., McGehee, M.D., MRS Bull. 30, 37 (2005) CrossRef
Chen, T.A., Wu, X.M., Rieke, R.D., J. Am. Chem. Soc. 117, 233 (1995) CrossRef
Kroeze, J.E., Savenije, T.J., Vermeulen, M.J.W., Warman, J.M., J. Phys. Chem. B 107, 7696 (2003) CrossRef
J.B. Chévrier, Ph.D. thesis, Université de Paris VII, 1993