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Enhanced performance of dye-sensitized solar cells based on electrospun TiO2 electrode

Title
Enhanced performance of dye-sensitized solar cells based on electrospun TiO2 electrode
Author(s)
Kim, Jeong-HwaJang, Kun-HoSung, Shi-JoonHwang, Dae-Kue
Issued Date
2017-11
Citation
Journal of Nanoscience and Nanotechnology, v.17, no.11, pp.8117 - 8121
Type
Article
Author Keywords
Dye-Sensitized Solar CellsElectrospinningOpen Circuit Voltage DecayElectrochemical Impedance Spectroscopy
Keywords
LIGHTNANOFIBERSEFFICIENCYCONVERSIONTRANSPORTNANOTUBESDSSCS
ISSN
1533-4880
Abstract
Dye-sensitized solar cells (DSSCs) were fabricated using electrospun titanium dioxide (TiO2) nanofibers as photoelectrodes. The electrospun TiO2 nanofibers photoelectrodes possess unique structural features that offer high surface area for enhanced dye loading and enable the fast and effective transport of electrons to the collection electrode. Using the electrospinning technique, the nanofibers were grown directly onto the fluorine-doped tin oxide glass from a typical spinning of solution. The solution is that the titanium isopropoxide and polyvinyl acetate are composited in N,N-dimethylformamide. The characteristics of electrospun TiO2 nanofibers were investigated by scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, and X-ray diffraction. DSSC characteristics were investigated by current density–voltage curve, open circuit voltage decay (OCVD), and electrochemical impedance spectroscopy (EIS) measurements. OCVD and EIS analyses revealed that cells based on TiO2 nanofiber photoelectrodes possess lower transfer resistance and longer electron lifetime than nanoparticle based cells. Copyright © 2017 American Scientific Publishers All rights reserved.
URI
http://hdl.handle.net/20.500.11750/4747
DOI
10.1166/jnn.2017.15114
Publisher
American Scientific Publishers
Related Researcher
  • 성시준 Sung, Shi-Joon
  • Research Interests Thin Film Solar Cells; 박막태양전지; Compound Semiconductor Materials & Processes; 화합물 반도체 재료 및 공정; Optoelectronic Devices based on Micro-Optical Structures; 미세 광학 구조 기반 광전자소자; Organic/Inorganic/Metallic Hybrid Thin Films & Applications; 유무기금속 하이브리드 박막
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Appears in Collections:
Division of Energy & Environmental Technology 1. Journal Articles
Convergence Research Center for Solar Energy 1. Journal Articles

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