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

Yuelong Li; Wonjoo Lee; Doh Kwon Lee; Kyungkon Kim; Nam Gyu Park; Min Jae Ko

doi:10.1063/1.3562030

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

Yuelong Li, Wonjoo Lee, Doh Kwon Lee, Kyungkon Kim, Nam Gyu Park, Min Jae Ko

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

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.

Original language	English
Article number	103301
Journal	Applied Physics Letters
Volume	98
Issue number	10
DOIs	https://doi.org/10.1063/1.3562030
State	Published - 7 Mar 2011

Bibliographical note

Funding Information:
This research was supported by a grant (Grant No. 2010K000335) from “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Programs” of the Ministry of Education, Science, and Technology, Korea and the New and Renewable Energy Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant (Grant No. 2010T100100651) funded by the Korea Government Ministry of Knowledge Economy.

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10.1063/1.3562030

Cite this

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title = "Pure anatase TiO2 {"}nanoglue{"}: An inorganic binding agent to improve nanoparticle interconnections in the low-temperature sintering of dye-sensitized solar cells",

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.",

author = "Yuelong Li and Wonjoo Lee and Lee, {Doh Kwon} and Kyungkon Kim and Park, {Nam Gyu} and Ko, {Min Jae}",

note = "Funding Information: This research was supported by a grant (Grant No. 2010K000335) from “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Programs” of the Ministry of Education, Science, and Technology, Korea and the New and Renewable Energy Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant (Grant No. 2010T100100651) funded by the Korea Government Ministry of Knowledge Economy.",

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AU - Lee, Doh Kwon

AU - Kim, Kyungkon

AU - Park, Nam Gyu

AU - Ko, Min Jae

N1 - Funding Information: This research was supported by a grant (Grant No. 2010K000335) from “Center for Nanostructured Materials Technology” under “21st Century Frontier R&D Programs” of the Ministry of Education, Science, and Technology, Korea and the New and Renewable Energy Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant (Grant No. 2010T100100651) funded by the Korea Government Ministry of Knowledge Economy.

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