TY - JOUR
T1 - Mixed morphology of TiO 2 nanotube and TiO 2 nanoparticles for dye sensitized solar cells
AU - Choi, Jongmin
AU - Park, Sung Hae
AU - Park, Taiho
PY - 2011
Y1 - 2011
N2 - One limitation factor in improving device performances of dye-sensitized solar cells is the random electron diffusion inside of the working electrode composed of TiO 2 nanocrystalline particles. Recently, application of highly ordered TiO 2 nanotubes (TNT) to DSCs has attracted considerable interest due to the shorter electron diffusion passway in TiO 2 layers. However, the performance of TNT-based DSCs is lower than that of TNP-based solar cell because of the back side illumination and the thick barrier layer and so on. One of the strategies to increase the power conversion efficiency is increasing the surface area of the TNT without growth its length, because electron has a limitation length of diffusion. Recently, the effect of the TiCl 4 treatment on TNT is reported to attach small TiO 2 particle on TNT surface. In this work, we investigated this method to induce TiO 2 particles on the surface of bare TNTs using TiCl 4 treatment.
AB - One limitation factor in improving device performances of dye-sensitized solar cells is the random electron diffusion inside of the working electrode composed of TiO 2 nanocrystalline particles. Recently, application of highly ordered TiO 2 nanotubes (TNT) to DSCs has attracted considerable interest due to the shorter electron diffusion passway in TiO 2 layers. However, the performance of TNT-based DSCs is lower than that of TNP-based solar cell because of the back side illumination and the thick barrier layer and so on. One of the strategies to increase the power conversion efficiency is increasing the surface area of the TNT without growth its length, because electron has a limitation length of diffusion. Recently, the effect of the TiCl 4 treatment on TNT is reported to attach small TiO 2 particle on TNT surface. In this work, we investigated this method to induce TiO 2 particles on the surface of bare TNTs using TiCl 4 treatment.
UR - https://www.scopus.com/pages/publications/84861034479
M3 - Conference article
AN - SCOPUS:84861034479
SN - 0065-7727
JO - ACS National Meeting Book of Abstracts
JF - ACS National Meeting Book of Abstracts
T2 - 242nd ACS National Meeting and Exposition
Y2 - 28 August 2011 through 1 September 2011
ER -