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Title: Improvement of dye-sensitized solar cell performance through infiltration of TiO{sub 2} nanoparticles between mesoporous TiO{sub 2} particles

Highlights: • Spherical mesoporous TiO{sub 2} materials were obtained by a simple sol–gel method. • Physical mixture of TiO{sub 2} nanoparticle and mesoporous TiO{sub 2} was utilized for solar cell electrode. • Mixed electrode system exhibited higher DSSC performance. - Abstract: There are two factors on the efficiency of dye-sensitized solar cell (DSSC): one is the amount of dye adsorbed, and the other is contact resistance. In this study, TiO{sub 2} nanoparticles (nano-TiO{sub 2}, about 20 nm particle size) were infiltrated between mesoporous TiO{sub 2} (meso-TiO{sub 2}) particles with about 300 nm particle sizes, in order to reduce the contact resistance of TiO{sub 2} electrodes. The infiltrated nano-TiO{sub 2} can facilitate electron transfer between meso-TiO{sub 2} particles by filling the empty volume of DSSC electrodes. As a result, the TiO{sub 2} electrode containing 65 wt% of meso-TiO{sub 2} and 35 wt% of nano-TiO{sub 2} exhibited the highest performance of DSSC.
Authors:
 [1] ; ; ;  [2] ; ;  [1] ;  [2] ;  [1]
  1. Department of Chemistry, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of)
  2. Baekyoung High School, Anyang 461-070 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22420577
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 58; Conference: IFFM2013: International forum on functional materials, Jeju City (Korea, Republic of), 27-29 Jun 2013; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ELECTROCHEMISTRY; ELECTRODES; ELECTRON TRANSFER; MIXTURES; NANOPARTICLES; NANOSTRUCTURES; PARTICLE SIZE; POROUS MATERIALS; SOLAR CELLS; SOL-GEL PROCESS; TITANIUM OXIDES; X-RAY DIFFRACTION