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Effect of single-walled carbon nanotube in PbS/TiO2 quantum dots-sensitized solar cells
- Issue Date
- Jan-2009
- Publisher
- ELSEVIER
- Keywords
- Photoelectrochemical solar cell; Recombination; Charge collection; Carbon nanotube; PbS
- Citation
- MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, v.156, no.1-3, pp.48 - 51
- Indexed
- SCIE
SCOPUS
- Volume
- 156
- Number
- 1-3
- Start Page
- 48
- End Page
- 51
- ISSN
- 0921-5107
- Abstract
- Single-walled carbon nanotubes (SWNTs) layers formed on indium-doped tin oxide (ITO) electrodes for enhanced photoconversion efficiency of PbS/TiO2 quantum dots (Qdots)-sensitized photoelectrochemical solar cells (PECs). The short-circuit current of Q dots-sensitized PECs with SWNTs layers increased under illumination, and the dark current of the PECs was also reduced without illumination. Furthermore, the electron lifetimes of PbS/TiO2/SWNTs in open-circuit voltage decay is higher than that of PbS/TiO2 films at the same voltage. As a result, the power conversion efficiency of PbS/TiO2 on ITO increased 35.6% in the presence of SWNTs due to the improved charge-collecting efficiency and reduced recombination process.
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Related Researcher
- Yi, Whi kun
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF CHEMISTRY)