Cited 10 time in webofscience Cited 13 time in scopus

Effects of Mg salt-modified TiO2 on the photovoltaic performance of dye-sensitized solar cells

Title
Effects of Mg salt-modified TiO2 on the photovoltaic performance of dye-sensitized solar cells
Authors
Park, SK[Park, Su Kyung]Kim, C[Kim, Cham]Kim, JH[Kim, Jae Hong]Bae, JY[Bae, Jae Young]Han, YS[Han, Yoon Soo]
DGIST Authors
Park, SK[Park, Su Kyung]; Kim, C[Kim, Cham]; Han, YS[Han, Yoon Soo]
Issue Date
2011-01
Citation
Current Applied Physics, 11(1), S131-S135
Type
Article
Article Type
Article; Proceedings Paper
Keywords
AdsorptionCoatingsConduction Band EdgeConduction Band Edge ShiftConduction BandsConversion EfficiencyDip-CoatingDye-Sensitized Solar CellElectro-Chemical Impedance Spectroscopy (EIS)Electrochemical CorrosionElectron MobilityMg SaltOpen Circuit VoltagePhotoelectrochemical CellsPhotovoltaic EffectsSolar CellsSolar Power GenerationSurface Dipole
ISSN
1567-1739
Abstract
This work reports on the preparation of Mg salts [MS; MgCO3 and Mg(CH3COO)2]-modified TiO2 electrodes by very simple dip coating and effects on the photovoltaic properties of dye-sensitized solar cells (DSSCs) with them. The DSSC with MS-modified TiO2 layer showed an increase in short-circuit current (Jsc) and open-circuit voltage (Voc), resulting in a power conversion efficiency (PCE) of 8.48% compared to that (7.27%) of reference device with bare TiO2. The improved Jsc value was attributed to the increased dye adsorption. Electrochemical impedance spectroscopy, dark current-voltage and incident photon-to-current conversion efficiency studies revealed that the Voc enhancement was caused by the conduction band edge shift of TiO2 to a more negative potential due to the formation of a surface dipole. © 2010 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/3466
DOI
10.1016/j.cap.2010.11.087
Publisher
Elsevier B.V.
Related Researcher
Files:
There are no files associated with this item.
Collection:
Division of Nano∙Energy Convergence Research1. Journal Articles
Magnetic-Controlled Materials Research Group1. Journal Articles


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