Co-Sedimentation of TiO2 Nanoparticles and Polymer Beads to Fabricate Macroporous TiO2 Photoelectrodes

Title
Co-Sedimentation of TiO2 Nanoparticles and Polymer Beads to Fabricate Macroporous TiO2 Photoelectrodes
Authors
김민아서영곤이상수이원목이현정
Keywords
Dye-Sensitized Solar Cells; Macroporous TiO2 Films; Low Temperature Process; Highly Dispersed TiO2 Solution; Polymer Microspheres
Issue Date
2012-04
Publisher
Journal of nanoscience and nanotechnology
Citation
VOL 12, NO 4, 3247-3251
Abstract
Dye-sensitized solar cells based on highly porous nanocrystalline TiO2 films have drawn considerable attention due to their high conversion efficiency and low production cost. TiO2 nanocrystalline electrodes have been investigated extensively as a key material. In this study, we discuss dye-sensitized solar cells based on macroporous TiO2 films using a highly-dispersed aqueous solution of TiO2 nanoparticles and polymeric particles. After drying this solution on the conducting glass substrate, the sacrificial polymer particles were removed selectively by thermal sintering at high temperatures over 400 °C or chemical treatment at the low temperature of 150 °C. This method provides the flexible control of TiO2 fractions or pore size or fabrication temperature. Also highly-dispersed TiO2 particles with a high crystallinity would provide a promising solution on low-temperature process for flexible DSSCs.
URI
http://pubs.kist.re.kr/handle/201004/45678
ISSN
15334880
Appears in Collections:
KIST Publication > Article
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