Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 11, Issue 3, Pages 1914-1922Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2011.3582
Keywords
Quantum Dot-Sensitized Solar Cell (QDSSC); Dye-Sensitized Solar Cells (DSC); Tin Sulfide (SnS); Successive Ionic Layer Adsorption and Reaction (SILAR) Method; ZnS Coating
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Funding
- MEXT, Japan [19685020]
- JST, Japan
- NEDO, Japan
- Grants-in-Aid for Scientific Research [19685020] Funding Source: KAKEN
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SnS-sensitized TiO2 electrodes were applied in quantum dot-sensitized solar cells (QDSSCs) which are environmentally more favorable than conventional Cd or Pb-chalcogenide-sensitized electrodes. SnS nanoparticles were well-distributed over the surface of TiO2 nanoparticles by the successive ionic layer adsorption and reaction (SILAR) method. Deposited SnS nanoparticles had diameter about 3 nm. Under AM1.5 irradiation with 100 mW/cm(2) light intensity (at 1 sun), the energy conversion efficiency of obtained cells reached a value of 0.21% (0.25 cm(2)) at SILAR coating cycles of 5. In addition, the photovoltaic performance was improved by additional ZnS coating on the surface of SnS-sensitized TiO2 electrodes.
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