Photoelectrochemical solar cells fabricated from porous CdSe and CdS layers

Sang Hyuk Im, Yong Hui Lee, Sang Il Seok

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41 Citations (Scopus)

Abstract

Porous CdSe layers were prepared by spray pyrolysis deposition using sodium selenosulfate as a selenium source and its surface area and porosity were increased by the dissolution of sodium sulfate formed as by-product. The porous CdSe as both photoanode and absorber could efficiently transport electrons to fluorine-doped tin oxide electrode and extract holes to the electrolyte. The cells were optimized by controlling the number of spray pyrolysis deposition cycles and then etching with sodium sulfate. An efficient solar cell having a power conversion efficiency of 2.6% at 1 sun illumination (100mWcm-1) was fabricated. Further, we extend this approach to fabricate an efficient porous CdS-sensitized solar cell with power conversion efficiency greater than 1.0% at 1 sun illumination.

Original languageEnglish
Pages (from-to)5665-5669
Number of pages5
JournalElectrochimica Acta
Volume55
Issue number20
DOIs
Publication statusPublished - 2010 Aug 1
Externally publishedYes

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Keywords

  • Photoelectrochemical solar cells
  • Porous CdSe and CdS layers
  • Spray pyrolysis deposition

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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