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Improved photovoltaic performance of nanostructured solar cells by neodymium-doped TiO2 photoelectrode

Shogh, S ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1016/j.matlet.2015.07.011
  3. Publisher: Elsevier , 2015
  4. Abstract:
  5. Well-crystallized TiO2 and neodymium (Nd)-doped TiO2 nanoparticles with various doping levels were synthesized by hydrothermal method and utilized as the photoanode of nanostructured solar cells. The results indicated that Nd-doping was caused the absorption spectra shift to higher wavelength while the morphology and surface area were unchanged. As a result, by employing 0.4 mol% Nd in the TiO2 photoelectrode, the overall conversion efficiency of the cell reached 9.08% which is 26% higher than pure one. Based on the photo-electrochemical characterizations, the improvement is a consequence of electrons injection increment from dye to TiO2 conduction band, charge collection efficiency enhancement, and trap states density reduction in the Nd-doped photoanode
  6. Keywords:
  7. Neodymium-doped TiO2 ; Neodymium ; Solar power generation ; Synthesis (chemical) ; Charge collection efficiency ; Electrochemical characterizations ; Hydrothermal ; Hydrothermal methods ; Nanostructured solar cells ; Neodymium doped ; Overall conversion efficiency ; Photovoltaic performance ; Solar cells
  8. Source: Materials Letters ; Volume 159 , November , 2015 , Pages 273-275 ; 0167577X (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0167577X15302044