Porous CdS-sensitized electrochemical solar cells

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

doi:10.1016/j.electacta.2010.11.080

Porous CdS-sensitized electrochemical solar cells

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

Research output: Contribution to journal › Article › peer-review

25 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 language	English
Pages (from-to)	2087-2091
Number of pages	5
Journal	Electrochimica Acta
Volume	56
Issue number	5
DOIs	https://doi.org/10.1016/j.electacta.2010.11.080
Publication status	Published - 2011 Feb 1

Bibliographical note

Funding Information:
This study was supported by the Global Research Laboratory (GRL) Program through the National Research Foundation of Korea, funded by the Ministry of Education, Science and Technology, Republic of Korea .

Keywords

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

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

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10.1016/j.electacta.2010.11.080

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title = "Porous CdS-sensitized electrochemical solar cells",

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.",

keywords = "Cadmium sulfide, Photoelectrochemical solar cell, Selective etching, Spray pyrolysis deposition, Thermal annealing",

author = "Lee, {Yong Hui} and Im, {Sang Hyuk} and Lee, {Jong Heun} and Seok, {Sang Il}",

note = "Funding Information: This study was supported by the Global Research Laboratory (GRL) Program through the National Research Foundation of Korea, funded by the Ministry of Education, Science and Technology, Republic of Korea .",

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AU - Lee, Yong Hui

AU - Im, Sang Hyuk

AU - Lee, Jong Heun

AU - Seok, Sang Il

N1 - Funding Information: This study was supported by the Global Research Laboratory (GRL) Program through the National Research Foundation of Korea, funded by the Ministry of Education, Science and Technology, Republic of Korea .

PY - 2011/2/1

Y1 - 2011/2/1

N2 - 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.

AB - 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.

KW - Cadmium sulfide

KW - Photoelectrochemical solar cell

KW - Selective etching

KW - Spray pyrolysis deposition

KW - Thermal annealing

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DO - 10.1016/j.electacta.2010.11.080

M3 - Article

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SN - 0013-4686

VL - 56

SP - 2087

EP - 2091

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 5

ER -

Porous CdS-sensitized electrochemical solar cells

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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