Park, Jong Hyuk Jung, Sun Young Yu, A. Rim Lee, Sang-Soo 2024-01-20T16:32:52Z 2024-01-20T16:32:52Z 2021-09-05 2011-08 0167-577X https://pubs.kist.re.kr/handle/201004/130110 TiO2 hollow spheres are employed as an additive of oligomer electrolytes for dye-sensitized solar cells (DSSCs). The measurement of steady-state currents confirms that introducing TiO2 hollow spheres can facilitate ionic diffusion in oligomer electrolytes. Even compared with conventional nanoparticle additives, the hollow spheres are more favorable to increase the diffusion coefficients of I- and I-3(-) in oligomer electrolytes. Furthermore, the hollow structure with a submicron size is effective to scatter incident light and thereby enhance the light-harvesting efficiency of DSSCs. The energy-conversion efficiency of the DSSCs with TiO2 hollow sphere additives significantly improves up to 7.22% due to the facilitated ionic diffusion and the enhanced light-harvesting efficiency. (C) 2011 Elsevier BM. All rights reserved. English ELSEVIER SCIENCE BV IONIC-DIFFUSION TiO2 hollow spheres as effective additives in oligomer electrolytes for dye-sensitized solar cells Article 10.1016/j.matlet.2011.04.096 1 MATERIALS LETTERS, v.65, no.15-16, pp.2506 - 2509 MATERIALS LETTERS 65 15-16 2506 2509 scie scopus 000293118000058 2-s2.0-79957803878 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article IONIC-DIFFUSION Hollow sphere TiO2 additive Oligomer electrolyte Dye-sensitized solar cell