Pure anatase TiO2 “nanoglue”: An inorganic binding agent to improve nanoparticle interconnections in the low-temperature sintering of dye-sensitized solar cells

Title
Pure anatase TiO2 “nanoglue”: An inorganic binding agent to improve nanoparticle interconnections in the low-temperature sintering of dye-sensitized solar cells
Authors
리위롱이원주이도권김경곤박남규고민재
Keywords
dye-sensitized; low-temperature sintering; nanoglue; interconnection; TiO2
Issue Date
2011-03
Publisher
Applied physics letters
Citation
VOL 98, NO 10, 103301-1-103301-3
Abstract
An interparticle-binding agent, or “nanoglue,” was prepared for the fabrication of well-interconnected TiO2 photoelectrodes in dye-sensitized solar cells DSSCs sintered at low temperature. This nanoglue consisted of pure anatase particles approximately 5 nm in diameter dispersed in alcoholic solvent. When mixed with TiO2 particles 21 nm in diameter, the nanoglue induced interparticle chemical bridging via the condensation of hydroxyl groups on surfaces of TiO2 particles. The efficiency of nanoglue-based DSSCs was improved by approximately 25% compared to non-nanoglue-based DSSCs. This improvement was mainly ascribed to enhanced interparticle connections due to the presence of the 5 nm TiO2 particles in nanoglue.
URI
http://pubs.kist.re.kr/handle/201004/39497
ISSN
0003-6951
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KIST Publication > Article
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