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Electrical Conducting Diamond Thin-Films: An Alternative Counter Electrode Material for Dye Sensitized Solar Cells

Published online by Cambridge University Press:  21 March 2011

R.D. Vispute ,
Alok Vats ,
Vinod Venkatesan ,
Andrew Seiser ,
Jaurette Dozier ,
Jeremy Feldman  and
Lance Robinson
R.D. Vispute*
Affiliation:
Blue Wave Semiconductors Inc. 1450, UMBC Technology Center, Baltimore, MD-21227, USA
Alok Vats
Affiliation:
Blue Wave Semiconductors Inc. 1450, UMBC Technology Center, Baltimore, MD-21227, USA
Vinod Venkatesan
Affiliation:
Blue Wave Semiconductors Inc. 1450, UMBC Technology Center, Baltimore, MD-21227, USA
Andrew Seiser
Affiliation:
Blue Wave Semiconductors Inc. 1450, UMBC Technology Center, Baltimore, MD-21227, USA
Jaurette Dozier
Affiliation:
Blue Wave Semiconductors Inc. 1450, UMBC Technology Center, Baltimore, MD-21227, USA
Jeremy Feldman
Affiliation:
Blue Wave Semiconductors Inc. 1450, UMBC Technology Center, Baltimore, MD-21227, USA
Lance Robinson
Affiliation:
Blue Wave Semiconductors Inc. 1450, UMBC Technology Center, Baltimore, MD-21227, USA
*
1.Contact author e-mail: [email protected]
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Abstract

Carbon is a favorable alternative as counter electrode material for dye sensitized solar cells (DSSC) as compared to Pt. Various carbon materials such as carbon nanotubes (CNT), activated carbon (AC) and carbon nanofibers have been investigated as counter electrodes for DSSC applications, based on their high electrochemical activity, high specific surface area, chemical inertness and high electrical conductivity. Among various phases of carbon, diamond is the most robust and chemical inert material that can be used for electrode application. It has band gap of 5.5 eV, high thermal conductivity. its electrical resistivity can be tuned by doping such as boron. In this work, we investigate boron doped diamond thin film electrode for DSSCs. The conductive diamond thin electrode films were grown using Blue Wave hot wire chemical vapor deposition (HWCVD) system. The electrical resistance in diamond thin films was tuned by controlling grow temperature, filament power, dopant concentration and sp3/sp2 ratio in the film, it thickness, and initial seeding process. Scanning electron microscopy, Raman spectroscopy and electrical resistivity measurement were used to characterize morphology, diamond quality and electrode conductivity, respectively. Diamond film electrodes with optimized surface morphology and electrical characteristics were used for DSSC fabrication. We used nanocrystalline TiO2 paste (P25 Degussa) with average particle size of 25nm as an active layer, the electrolyte comprised of a LiI/I2 electrolyte in acetonitrile (CH3CN), a Ru based metal complex dye [cis-diisothiocyanato-bis(2,2’-bipyridyl-4,4’-dicarboxylato) ruthenium(II) bis(tetrabutylammonium)] OR N719 was used as sensitizer. The photovoltaic performance was determined using J-V characteristics under standard illumination conditions and was compared to a reference DSSC with Pt counter electrode. Results are discussed in the context of diamond electrical and durability and chemical stability of diamond films against most commonly used family of iodine based electrolytes.

Keywords

diamondphotovoltaicthin film
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1282: Symposium A – Diamond Electronics and Bioelectronics—Fundamentals to Applications IV , 2011 , mrsf10-1282-a14-04
Copyright
Copyright © Materials Research Society 2011

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References

REFERENCES

1. Grätzel, M. Conversion of sunlight to electric power by nanocrystalline dye-sensitized solar cells* 1. Journal of Photochemistry and Photobiology A: Chemistry 164, 3–14 (2004).10.1016/j.jphotochem.2004.02.023Google Scholar
2. Grätzel, M. Solar energy conversion by dye-sensitized photovoltaic cells. Inorg. Chem 44, 6841–6851 (2005).Google Scholar
3. Wang, Z., Yamaguchi, T., Sugihara, H. & Arakawa, H. Significant efficiency improvement of the black dye-sensitized solar cell through protonation of TiO2 films. Langmuir 21, 4272–4276 (2005).Google Scholar
4. Wei, M. et al. . Highly efficient dye-sensitized solar cells composed of mesoporous titanium dioxide. Journal of material chemistry 16, 1287–1293 (2006).Google Scholar
5. Novoselov, K. et al. . Electric field effect in atomically thin carbon films. Science 306, 666 (2004).Google Scholar
6. Geim, A. & Novoselov, K. The rise of graphene. Nature Materials 6, 183–191 (2007).Google Scholar
7. Heath, H., O’Brien, S., Curl, R. & Smalley, R. C60: Buckminsterfullerene. Nature 318, 162–163 (1985).Google Scholar
8. Iijima, S. Helical microtubules of graphitic carbon. Nature 354, 56–58 (1991).Google Scholar
9. Saito, R., Dresselhaus, G., Dresselhaus, M. & Knovel, . Physical properties of carbon nanotubes. (Imperial college press London, 1998).Google Scholar
10. Baughman, R., Zakhidov, A. & De Heer, W. Carbon nanotubes–the route toward applications. Science 297, 787 (2002).10.1126/science.1060928Google Scholar
11. Robertson, J. Diamond-like amorphous carbon. Materials Science and Engineering: R: Reports 37, 129–281 (2002).10.1016/S0927-796X(02)00005-0Google Scholar
12. Murakami, T. et al. . Highly efficient dye-sensitized solar cells based on carbon black counter electrodes. Journal of the Electrochemical Society 153, A2255 (2006).10.1149/1.2358087Google Scholar
13. O’regan, B. & Grätzel, M. A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films. Nature 353, 737–740 (1991).Google Scholar
14. Pleskov, Y. Electrochemistry of diamond: A review. Russian Journal of Electrochemistry 38, 1275–1291 (2002).10.1023/A:1021651920042Google Scholar
15. Strojek, J., Granger, M., Swain, G., Dallas, T. & Holtz, M. Enhanced signal-to-background ratios in voltammetric measurements made at diamond thin-film electrochemical interfaces. Anal. Chem 68, 2031–2037 (1996).Google Scholar
16. Granger, M. et al. . Standard electrochemical behavior of high-quality, boron-doped polycrystalline diamond thin-film electrodes. Anal. Chem 72, 3793–3804 (2000).Google Scholar
17. Jolley, S., Koppang, M., Jackson, T. & Swain, G. Flow injection analysis with diamond thin-film detectors. Anal. Chem 69, 4099–4107 (1997).Google Scholar
18. Koppang, M., Witek, M., Blau, J. & Swain, G. Electrochemical oxidation of polyamines at diamond thin-film electrodes. Anal. Chem 71, 1188–1195 (1999).Google Scholar
19. Xu, J., Chen, Q. & Swain, G. Anthraquinonedisulfonate electrochemistry: A comparison of glassy carbon, hydrogenated glassy carbon, highly oriented pyrolytic graphite, and diamond electrodes. Anal. Chem 70, 3146–3154 (1998).10.1021/ac9800661Google Scholar