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

Journal Article · Wed Oct 15 04:00:00 EDT 2014 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2014.04.062· OSTI ID:22420577

Park, Su-Bin ^[1]; Chung, Il Jun; Woo, Ji Won; Kim, Tae Hun ^[2]; Li, Zhenghua; Jin, Mingshi ^[1]; Lee, Duk Jae ^[2]

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1. Department of Chemistry, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of)
2. Baekyoung High School, Anyang 461-070 (Korea, Republic of)

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.

• OSTI ID: 22420577
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 58; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTROCHEMISTRY
ELECTRODES
ELECTRON TRANSFER
MIXTURES
NANOPARTICLES
NANOSTRUCTURES
PARTICLE SIZE
POROUS MATERIALS
SOL-GEL PROCESS
SOLAR CELLS
TITANIUM OXIDES
X-RAY DIFFRACTION