The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Photosensitization of ZnO Nanowires with CdSe Quantum Dots for Photovoltaic Devices
Abstract
We combine CdSe semiconductor nanocrystals (or quantum dots) and single-crystal ZnO nanowires to demonstrate a new type of quantum-dot-sensitized solar cell. An array of ZnO nanowires was grown vertically from a fluorine-doped tin oxide conducting substrate. CdSe quantum dots, capped with mercaptopropionic acid, were attached to the surface of the nanowires. When illuminated with visible light, the excited CdSe quantum dots injected electrons across the quantum dot-nanowire interface. The morphology of the nanowires then provided the photoinjected electrons with a direct electrical pathway to the photoanode. With a liquid electrolyte as the hole transport medium, quantum-dot-sensitized nanowire solar cells exhibited short-circuit currents ranging from 1 to 2 mA/cm2 and open-circuit voltages of 0.5-0.6 V when illuminated with 100 mW/cm2 simulated AM1.5 spectrum. Internal quantum efficiencies as high as 50-60% were also obtained.
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Cites
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
O'Regan, B., & Grätzel, M. (1991) · Nature · doi:10.1038/353737a0 · Cited by 28,599
Cited by
A review on the visible light active titanium dioxide photocatalysts for environmental applications
Pelaez, M., Nolan, N. T., Pillai, S. C., Seery, M. K., Falaras, P., Kontos, A. G., Dunlop, P. S. M., Hamilton, J. W. J., Byrne, J. A., O'Shea, K., et al. (2012) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2012.05.036 · Cited by 4,047
Liu, B., & Aydil, E. S. (2009) · Journal of the American Chemical Society · doi:10.1021/ja8078972 · Cited by 2,381
Self-citationKongkanand, A., Tvrdy, K., Takechi, K., Kuno, M., & Kamat, P. V. (2008) · Journal of the American Chemical Society · doi:10.1021/ja0782706 · Cited by 1,644
Jun, H. K., Careem, M. A., & Arof, A. K. (2013) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2013.01.030 · Cited by 373
Colloidal Quantum Dot Photovoltaics: A Path Forward
Kramer, I. J., & Sargent, E. H. (2011) · ACS Nano · doi:10.1021/nn203438u · Cited by 363
Metadata
- Authors
- Leschkies, K. S., Divakar, R., Basu, J., Enache-Pommer, E., Boercker, J. E., Carter, C. B., Kortshagen, U. R., Norris, D. J., & Aydil, E. S.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-05-16
- Volume
- 7
- Issue
- 6
- Pages
- 1793-1798
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2038076919
- Cited by
- 975
- References
- 1
- FWCI
- 39.12
- Type
- journal article
- Language
- en
- Open access
- closed
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