Porous CdS-sensitized electrochemical solar cells

Yong Hui Lee, Sang Hyuk Im, Jong Heun Lee, Sang Il Seok

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

In inorganic semiconductor (such as CdS)-sensitized solar cells, isolated nanoparticles (including quantum dots) or Porous semiconducting layers are particularly efficient and effective in extracting charge carriers generated by solar energy, without a serious recombination among sensitizers. In this study, porously structured CdS was formed by spray pyrolysis deposition (SPD) using an excess cadmium chloride and thiourea aqueous mixture solution onto an mp-TiO2 substrate pre-heated to 450 °C in an air atmosphere and subsequent washing of the excess cadmium chloride using deionized water. As expected, the power conversion efficiency of a photoelectrochemical solar cell fabricated with the porous CdS was greatly improved, to 1.71%, the highest efficiency ever reported for CdS-sensitized solar cells employing polysulfide as an electrolyte. This improvement in performance is attributed to the efficient transport of the charge carriers generated in CdS.

Original languageEnglish
Pages (from-to)2087-2091
Number of pages5
JournalElectrochimica Acta
Volume56
Issue number5
DOIs
Publication statusPublished - 2011 Feb 1

Fingerprint

Cadmium chloride
Cadmium Chloride
Solar cells
Charge carriers
Polysulfides
Thiourea
Spray pyrolysis
Thioureas
Deionized water
Washing
Solar energy
Electrolytes
Semiconductor quantum dots
Conversion efficiency
Semiconductor materials
Nanoparticles
Substrates
Air

Keywords

  • Cadmium sulfide
  • Photoelectrochemical solar cell
  • Selective etching
  • Spray pyrolysis deposition
  • Thermal annealing

ASJC Scopus subject areas

  • Electrochemistry
  • Chemical Engineering(all)

Cite this

Porous CdS-sensitized electrochemical solar cells. / Lee, Yong Hui; Im, Sang Hyuk; Lee, Jong Heun; Seok, Sang Il.

In: Electrochimica Acta, Vol. 56, No. 5, 01.02.2011, p. 2087-2091.

Research output: Contribution to journalArticle

Lee, Yong Hui ; Im, Sang Hyuk ; Lee, Jong Heun ; Seok, Sang Il. / Porous CdS-sensitized electrochemical solar cells. In: Electrochimica Acta. 2011 ; Vol. 56, No. 5. pp. 2087-2091.
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