Dao, Van-Duong Kim, Seong-Hoon Choi, Ho-Suk Kim, Jae-Ha Park, Han-Oh Lee, Joong-Kee 2024-01-20T15:34:39Z 2024-01-20T15:34:39Z 2021-09-04 2011-12-29 1932-7447 https://pubs.kist.re.kr/handle/201004/129706 [Pt hollow spheres] electrodes and [Pt-sputtered + Pt hollow spheres] electrodes were fabricated on fluorine-doped tin oxide (FTO) glass as counter electrodes for dye-sensitized solar cells (DSCs), after sputtering platinum (Pt) on polystyrene microspheres and annealing them at 500 degrees C for 30 min. Electrochemical impedance measurement revealed that the charge transfer resistances of [Pt hollow spheres] electrodes and [Pt-sputtered + Pt hollow spheres] electrodes were 0.91 Omega cm(2) and 0.48 Omega cm(2), respectively, which were less than that of 1.28 Omega cm(2) obtained from [Pt-sputtered] electrode. Furthermore, the DSCs with [Pt hollow spheres] and [Pt-sputtered + Pt hollow spheres] electrodes exhibited high energy-conversion efficiencies of 8.20(+/- 0.10)% and 8.53(+/- 0.08)%, respectively, which were both higher than the 7.89(+/- 0.05)% efficiency of the DSC with [Pt-sputtered] electrodes. English American Chemical Society REDUCTION FABRICATION IMPROVEMENT Efficiency Enhancement of Dye-Sensitized Solar Cell Using Pt Hollow Sphere Counter Electrode Article 10.1021/jp208295b 1 The Journal of Physical Chemistry C, v.115, no.51, pp.25529 - 25534 The Journal of Physical Chemistry C 115 51 25529 25534 scie scopus 000298214800041 2-s2.0-84255204864 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article REDUCTION FABRICATION IMPROVEMENT Hollow sphere Electrode ERfficiency Solar cell