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Stamping Transfer of a Quantum Dot Interlayer for Organic Photovoltaic Cells

Title
Stamping Transfer of a Quantum Dot Interlayer for Organic Photovoltaic Cells
Authors
Jeon, JH[Jeon, Ji Hye]Wang, DH[Wang, Dong Hwan]Park, H[Park, Hyunmin]Park, JH[Park, Jong Hyeok]Park, OO[Park, O. Ok]
DGIST Authors
Park, OO[Park, O. Ok]
Issue Date
2012-06-26
Citation
Langmuir, 28(25), 9893-9898
Type
Article
Article Type
Article
Keywords
Active LayerCadmium AlloysCadmium CompoundsCadmium SelenidesCathodesCdSeCdSe QDsCharge RecombinationsComposite FilmsFluorescence ImageMetal CathodesOrganic Photovoltaic CellsOrganic Solar CellOrganophilicPhotovoltaic CellsPhotovoltaic EffectsPhotovoltaic PerformancePolycarbonate FilmsSemiconductor Quantum DotsSolar CellsSolvent ResistanceStampingTEM AnalysisTransfer MethodUltraviolet Photoelectron Spectroscopy
ISSN
0743-7463
Abstract
An organophilic cadmium selenide (CdSe) quantum dot (QD) interlayer was prepared on the active layer in organic solar cells by a stamping transfer method. The mother substrate composed of a UV-cured film on a polycarbonate film with strong solvent resistance makes it possible to spin-coat QDs on it and dry transfer onto an active layer without damaging the active layer. The QD interlayers have been optimized by controlling the concentration of the QD solution. The coverage of QD particles on the active layer was verified by TEM analysis and fluorescence images. After insertion of the QD interlayer between the active layer and metal cathode, the photovoltaic performances of the organic solar cell were clearly enhanced. By ultraviolet photoelectron spectroscopy of CdSe QDs, it can be anticipated that the CdSe QD interlayer reduces charge recombination by blocking the holes moving to the cathode from the active layer and facilitating efficient collection of the electrons from the active layer to the cathode. © 2012 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/2461
DOI
10.1021/la301477e
Publisher
American Chemical Society
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringETC1. Journal Articles


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