Byun, HY Vittal, R Kim, DY Kim, KJ 2024-01-21T06:38:35Z 2024-01-21T06:38:35Z 2021-09-05 2004-08 0743-7463 https://pubs.kist.re.kr/handle/201004/137367 A new approach involving the introduction of the common cationic surfactant cetyltrimethylammonium bromide (CTAB) for modifying a rutile TiO2 film during its formation from hydrolyzed TiCl4 solution has been adopted, intending to improve the photoelectrochemical properties of the pertinent dye-sensitized solar cell. CTAB-routed films were found to consist of smaller clusters of near-spherical TiO2 particles, compared with larger clusters of long rod-shaped particles in the absence of CTAB. As a consequence, the photocurrent and photovoltage of the cell fabricated by using CTAB have increased significantly, leading to a conversion efficiency increase, compared with those of the cell prepared without CTAB. On the basis of FE-SEM, BET, and XRD analyses, the increases are attributed to decreased particle size, improved interparticle connectivity, and enhanced crystallinity of the CTAB-promoted TiO2 particles and decreased void volume in the film. Faster growth of the TiO2 film was another beneficial effect of CTAB. A mechanism is proposed for the beneficial role of CTAB during the film formation. English AMER CHEMICAL SOC Beneficial role of cetyltrimethylammonium bromide in the enhancement of photovoltaic properties of dye-sensitized rutile TiO2 solar cells Article 10.1021/la040032q 1 LANGMUIR, v.20, no.16, pp.6853 - 6857 LANGMUIR 20 16 6853 6857 N scie scopus 000223066700050 2-s2.0-4043051516 Chemistry, Multidisciplinary Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article HEXACYANOFERRATE SURFACE-FILMS MESOPOROUS METAL-OXIDES LITHIUM INSERTION ELECTRODES ANATASE SPECTROSCOPY MORPHOLOGY ADSORPTION NICKEL TICL4 dye-sensitized solar cell TiO2