Seo, Young Gon Kim, Min Ah Lee, Hyunjung Lee, Wonmok 2024-01-20T18:01:22Z 2024-01-20T18:01:22Z 2021-09-02 2011-01 0927-0248 https://pubs.kist.re.kr/handle/201004/130777 In this report, non-aggregated anatase TiO2 nanoparticles were synthesized by mild solvothermal process in 1-butanol. By varying solvothermal reaction temperature and time, TiO2 particle size was controlled from 5.3 to 9.0 nm, while maintaining pure anatase phase and optical clearance in the concentrated dispersion (5 wt%). Spin coating of TiO2 dispersions resulted in transparent thin films with thickness controllability, and it was confirmed that the mild solvothermal reaction significantly increased the refractive index of the thin films without post-thermal treatment. In addition to the fabrication of low-temperature processed thin films, the inverse opal TiO2 films were also fabricated by the colloidal templating method followed by thermal calcination to reveal the improved volume shrinkage of the mesoporous TiO2 films. (c) 2010 Elsevier B.V. All rights reserved. English ELSEVIER ENHANCEMENT TITANIA Solution processed thin films of non-aggregated TiO2 nanoparticles prepared by mild solvothermal treatment Article 10.1016/j.solmat.2010.05.023 1 SOLAR ENERGY MATERIALS AND SOLAR CELLS, v.95, no.1, pp.332 - 335 SOLAR ENERGY MATERIALS AND SOLAR CELLS 95 1 332 335 scie scopus 000287013800082 2-s2.0-78149359638 Energy & Fuels Materials Science, Multidisciplinary Physics, Applied Energy & Fuels Materials Science Physics Article; Proceedings Paper ENHANCEMENT TITANIA TiO2 nanoparticles Solvothermal process Thin film Wet coating Inverse opal Dye-sensitized solar cell