The optical properties of nanoporous structured titanium dioxide and the photovoltaic efficiency on DSSC

Title
The optical properties of nanoporous structured titanium dioxide and the photovoltaic efficiency on DSSC
Author(s)
강미숙이예지[이예지]
Keywords
SENSITIZED SOLAR-CELLS; FORCE MICROSCOPY; DYE; TIO2; FILMS; POTENTIOMETRY; TEMPERATURE; PERFORMANCE
Issue Date
201004
Publisher
ELSEVIER SCIENCE SA
Citation
MATERIALS CHEMISTRY AND PHYSICS, v.122, no.1, pp.284 - 289
Abstract
This study examined the characterization of nanoporous structured titanium dioxide and its application to dye-sensitized solar cells (DSSCs). TEM revealed nanopore sizes of 10.0 nm with a regular hexagonal form. When nanoporous structured TiO(2) was applied to DSSC, the energy conversion efficiency was enhanced considerably compared with that using nanometer sized TiO(2) prepared using a hydrothermal method. The energy conversion efficiency of the DSSC prepared from nanoporous structured TiO(2) was approximately 8.71% with the N719 dye under 100 mW cm(-2) simulated light. FT-IR spectroscopy showed that the dye molecules were attached perfectly to the surface and more dye molecules were absorbed on the nanoporous structured TiO(2) than on the nano-sized TiO(2) particles prepared using a conventional hydrothermal method. Electrostatic force microscopy (EFM) showed that the electrons were transferred rapidly to the surface of the nanoporous structured TiO(2) film. (C) 2010 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/22597http://dx.doi.org/10.1016/j.matchemphys.2010.02.050
ISSN
0254-0584
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이과대학 > 화학생화학부 > Articles
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