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Molecular Design and Photovoltaic Performance of Organic Dyes Containing Phenothiazine for Dye-Sensitized Solar Cells

Title
Molecular Design and Photovoltaic Performance of Organic Dyes Containing Phenothiazine for Dye-Sensitized Solar Cells
Authors
Jo, HJ[Jo, Hyo Jeong]Nam, JE[Nam, Jung Eun]Sim, K[Sim, Kyoseung]Kim, DH[Kim, Dae-Hwan]Kim, JH[Kim, Jae Hong]Kang, JK[Kang, Jin-Kyu]
DGIST Authors
Jo, HJ[Jo, Hyo Jeong]; Nam, JE[Nam, Jung Eun]; Sim, K[Sim, Kyoseung]; Kim, DH[Kim, Dae-Hwan]Kang, JK[Kang, Jin-Kyu]
Issue Date
2014-10
Citation
Journal of Nanoscience and Nanotechnology, 14(10), 7938-7942
Type
Article
Article Type
Article
Keywords
Absorption, RadiationChemistryChromophoresColoring AgentColoring AgentsDye-Sensitized Solar CellDye-Sensitized Solar Cells (DSCs)DyesElectric Power SuppliesElectrochemistryElectrolytesElectromagnetic Wave AbsorptionElectron AcceptorFluorineFluorine-Substituted Phenothiazine DyesImpedance AnalysisInsecticidesLightLight AbsorptionLight Related PhenomenaMolar Extinction CoefficientOptical ProcessesOrganic DyeOrganic DyesPhenothiazinePhenothiazine DerivativePhenothiazinesPhotosensitizersPhotovoltaic EffectsPhotovoltaic PerformancePhotovoltaic PropertyPower Conversion EfficienciesPower SupplyRadiation AbsorptionRecombination KineticsSolar CellsSolar EnergySolar Power Generation
ISSN
1533-4880
Abstract
We synthesized novel organic photosensitizers based on fluorine-substituted phenothiazine with thiophene bridge units in the chromophore for application in dye-sensitized solar cells (DSSCs). Furthermore, organic dyes with different acceptors exhibited higher molar extinction coefficients, and better light absorption at longer wavelengths. The photovoltaic properties of organic dyes composed of different acceptors in their chromophores were measured to identify their effects on the DSSC performance. The organic dye, PFSCN2 containing multi-cyanoacrylic acid as the electron acceptor, showed a power conversion efficiency of 4.67% under AM 1.5 illumination (100 mW/cm2). The retarded recombination kinetics from TiO2 electrode to electrolyte enhanced the electron life time of the organic dye, PFSCN2 in the photoanode of the DSSC. This was confirmed with impedance analysis. Copyright © 2014 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/3026
DOI
10.1166/jnn.2014.9450
Publisher
American Scientific Publishers
Related Researcher
Files:
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Collection:
ETC1. Journal Articles


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