| Performance enhancement through post-treatments of CdS-sensitized solar cells fabricated by spray pyrolysis deposition. | |
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MedLine Citation:
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PMID: 20518559 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The CdS-sensitized solar cells (CdS-SSC) were fabricated by spray pyrolysis deposition (SPD) method. The performance of the cells was greatly improved through post-treatments that included thermal oxidation at 500 degrees C for 30 min in an air atmosphere and subsequent chemical etching by 40 mM aqueous HCl solution at room temperature for 30 min, as compared to as-deposited CdS-SSC. The CdS-SSC in a I(-)/I(3)(-) electrolyte system was resulted in the improvement of J(sc) (3.3 --> 5.2 mA/cm(2)), V(oc) (697 --> 758 mV), FF (41.4% --> 46.9%), and (0.95% --> 1.84%). Similarly, the efficiency of CdS-SSC in a noncorrosive polysulfide electrolyte system was also enhanced by the proposed thermal oxidation and etching process. The increase in the cell efficiency is attributed to the reduced charge recombination among sensitizer themselves through the mitigation of overaggregated CdS sensitizers deposited by SPD. |
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Authors:
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Yong Hui Lee; Sang Hyuk Im; Jae Hui Rhee; Jong-Heun Lee; Sang Il Seok |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: ACS applied materials & interfaces Volume: 2 ISSN: 1944-8244 ISO Abbreviation: ACS Appl Mater Interfaces Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-06-23 Completed Date: 2010-08-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101504991 Medline TA: ACS Appl Mater Interfaces Country: United States |
Other Details:
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Languages: eng Pagination: 1648-52 Citation Subset: IM |
Affiliation:
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KRICT-EPFL Global Research Laboratory, Advanced Materials Division, Korea Research Institute of Chemical Technology, Yuseong, Daejeon 305-600, Republic of Korea. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Cadmium Compounds
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chemistry* Conservation of Energy Resources Electrolytes Hot Temperature Materials Testing Microscopy, Electron, Scanning / methods Microscopy, Electron, Transmission / methods Nanotechnology / methods Oxides / chemistry Oxygen / chemistry Quantum Dots Solar Energy Sulfides / chemistry* Surface Properties Temperature |
| Chemical | |
Reg. No./Substance:
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0/Cadmium Compounds; 0/Electrolytes; 0/Oxides; 0/Sulfides; 1306-19-0/cadmium oxide; 1306-23-6/cadmium sulfide; 7782-44-7/Oxygen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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