Cited 0 time in webofscience Cited 0 time in scopus

Incorporation of Potassium Water Glass on Photoelectrodes and Its Effects on the Performance of Dye-Sensitized Solar Cells

Title
Incorporation of Potassium Water Glass on Photoelectrodes and Its Effects on the Performance of Dye-Sensitized Solar Cells
Authors
Oh, JH[Oh, Ju Hee]Lee, SJ[Lee, Sang-Ju]Kim, DH[Kim, Dae-Hwan]Sung, SJ[Sung, Shi-Joon]Kang, CS[Kang, Cheon Su]Han, YS[Han, Yoon Soo]
DGIST Authors
Oh, JH[Oh, Ju Hee]; Lee, SJ[Lee, Sang-Ju]; Kim, DH[Kim, Dae-Hwan]
Issue Date
2015-11
Citation
Journal of Nanoscience and Nanotechnology, 15(11), 8854-8858
Type
Article
Article Type
Article
Keywords
Charge RecombinationsDye-Sensitized Solar Cells (DSCs)Electro-Chemical Impedance Spectroscopy (EIS)ElectrodesGlassOpen Circuit VoltageOpen Circuit Voltage DecaysPhoto-ElectrodePhotovoltaic EffectsPhotovoltaic PropertyPotassium Water GlassPower Conversion EfficienciesShort-Circuit PhotocurrentSolar CellsSolar Power GenerationSurface ModifierSurface ModifiersSurface TreatmentTitanium DioxideWater Glass
ISSN
1533-4880
Abstract
We applied potassium water glass (PWG) for a modification of photoelectrodes and investigated the effects of this modification on the photovoltaic properties of dye-sensitized solar cells (DSSCs). The PWG-modified TiO2 electrodes were prepared by soaking the TiO2 films in an aqueous PWG solution, and the resulting electrodes were applied to the photoanodes of DSSCs. Compared with a reference device with pristine TiO2 electrode, the power conversion efficiency of a DSSC with a PWG-modified TiO2 electrode was improved by about 26% because of the enhanced shortcircuit photocurrent (Jsc) and open-circuit voltage (Voc). Open-circuit voltage decay, electrochemical impedance spectroscopy, and dark current measurements revealed that the incorporation of PWG on the TiO2 surface led to a longer electron lifetime because of the suppression of charge recombination between injected electrons and I- 3 ions, which, compared with a reference device without surface modification, resulted in an increase in both Jsc and Voc. Copyright © 2015 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2825
DOI
10.1166/jnn.2015.11519
Publisher
American Scientific Publishers
Related Researcher
Files:
There are no files associated with this item.
Collection:
Convergence Research Center for Solar Energy1. Journal Articles
Convergence Research Center for Solar Energy1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE