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Fabrication of High Efficiency Dye-Sensitized Solar Cells Based on TiO2 Nanoparticles Embedded in Ti Substrate

Title
Fabrication of High Efficiency Dye-Sensitized Solar Cells Based on TiO2 Nanoparticles Embedded in Ti Substrate
Authors
Kim, Kang-PilLee, Sang-JuHwang, Dae-KueKim, Dae-HwanHeo, Young-Woo
DGIST Authors
Kim, Kang-PilHwang, Dae-KueKim, Dae-Hwan
Issue Date
2015-01
Citation
Journal of Nanoscience and Nanotechnology, 15(1), 241-243
Type
Article
Article Type
Article
Keywords
Cell EfficiencyCharge Collection EfficiencyConversion EfficiencyDye-Sensitized Solar Cells (DSCs)EfficiencyElectrical ResistancesEmbedded StructureEmbedded StructuresHigh-EfficiencyNanoparticlesPower Conversion EfficienciesSolar CellsSubstratesTi SubstrateTi SubstratesTiOTiO2 NanoparticlesTitanium Dioxide
ISSN
1533-4880
Abstract
We have embedded a TiO2 nanoparticle (NP) photoelectrode in a Ti substrate to improve the cell efficiency of conventional TiO2 NP based dye-sensitized solar cells (DSSCs) using Ti substrate. Compared to the conventional standing-type (TiO2 NPs on Ti substrate) DSSCs, the embedded-type (TiO2 NPs embedded in Ti substrate) DSSCs have shown an approximately 35% improvement in power conversion efficiency due to the improvement of Jsc . The embedded-type DSSCs have more charge transport paths than do standing-type DSSCs due to the increase of contact area between the TiO2 NP sidewall and the Ti substrate. This increased contact area decreases the electrical resistance and increases the charge collection efficiency, which leads to the improvement of Jsc . The embedded-type NP-DSSCs are very effective DSSC structures for enhancing the power conversion efficiency of Ti substrate based DSSCs. Copyright © 2015 American Scientific Publishers
URI
http://hdl.handle.net/20.500.11750/5211
DOI
10.1166/jnn.2015.8395
Publisher
American Scientific Publishers
Related Researcher
Files:
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Collection:
Convergence Research Center for Solar Energy1. Journal Articles


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