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Boosting the efficiency of quantum dot sensitized solar cells up to 7.11% through simultaneous engineering of photocathode and photoanode

Journal Article


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Abstract


  • We demonstrate a new strategy of boosting the efficiency of quantum dot sensitized solar cells (QDSSCs) by engineering the photocathode and photoanode simultaneously. Nanostructured photocathodes based on non-stoichiometric Cu<inf>2-x</inf>Se electrocatalysts were developed via a simple and scalable approach for CdS/CdSe QDs co-sensitized solar cells. Compared to Cu<inf>2</inf>S CE, remarkably improved photovoltaic performance was achieved for QDSSCs with Cu<inf>2-x</inf>Se CEs. The superior catalytic activity and electrical conductivity of Cu<inf>2-x</inf>Se CEs were verified by the electrochemical impedance spectra and Tafel-polarization measurements. To maximize the efficiency enhancement, the photoanodes were optimized by introducing a pillared porous titania composite as the scattering layers for further light harvesting and charge transfer improvement concurrently. The combination of effective Cu<inf>2-x</inf>Se electrocatalysts and pillared titania scattering layers contributed to one of the best reported efficiencies of 7.11% for CdS/CdSe QDs co-sensitized solar cells.

UOW Authors


  •   Yu, Hua (external author)
  •   Bai, Yang (external author)
  •   Zong, Xu (external author)
  •   Wang, Lianzhou (external author)
  •   Chen, Xinqi (external author)
  •   Han, Chao (external author)
  •   Li, Zhen

Publication Date


  • 2015

Citation


  • Bai, Y., Han, C., Chen, X., Yu, H., Zong, X., Li, Z. & Wang, L. (2015). Boosting the efficiency of quantum dot sensitized solar cells up to 7.11% through simultaneous engineering of photocathode and photoanode. Nano Energy, 13 609-619.

Scopus Eid


  • 2-s2.0-84928164369

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2381&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1379

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 609

End Page


  • 619

Volume


  • 13

Abstract


  • We demonstrate a new strategy of boosting the efficiency of quantum dot sensitized solar cells (QDSSCs) by engineering the photocathode and photoanode simultaneously. Nanostructured photocathodes based on non-stoichiometric Cu<inf>2-x</inf>Se electrocatalysts were developed via a simple and scalable approach for CdS/CdSe QDs co-sensitized solar cells. Compared to Cu<inf>2</inf>S CE, remarkably improved photovoltaic performance was achieved for QDSSCs with Cu<inf>2-x</inf>Se CEs. The superior catalytic activity and electrical conductivity of Cu<inf>2-x</inf>Se CEs were verified by the electrochemical impedance spectra and Tafel-polarization measurements. To maximize the efficiency enhancement, the photoanodes were optimized by introducing a pillared porous titania composite as the scattering layers for further light harvesting and charge transfer improvement concurrently. The combination of effective Cu<inf>2-x</inf>Se electrocatalysts and pillared titania scattering layers contributed to one of the best reported efficiencies of 7.11% for CdS/CdSe QDs co-sensitized solar cells.

UOW Authors


  •   Yu, Hua (external author)
  •   Bai, Yang (external author)
  •   Zong, Xu (external author)
  •   Wang, Lianzhou (external author)
  •   Chen, Xinqi (external author)
  •   Han, Chao (external author)
  •   Li, Zhen

Publication Date


  • 2015

Citation


  • Bai, Y., Han, C., Chen, X., Yu, H., Zong, X., Li, Z. & Wang, L. (2015). Boosting the efficiency of quantum dot sensitized solar cells up to 7.11% through simultaneous engineering of photocathode and photoanode. Nano Energy, 13 609-619.

Scopus Eid


  • 2-s2.0-84928164369

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2381&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1379

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 609

End Page


  • 619

Volume


  • 13