Hwang, Daesub Jin, Jun-Su Lee, Horim Kim, Hae-Jin Chung, Heejae Kim, Dong Young Jang, Sung-Yeon Kim, Dongho 2024-01-20T08:04:36Z 2024-01-20T08:04:36Z 2021-09-05 2014-12 2045-2322 https://pubs.kist.re.kr/handle/201004/126032 We developed a unique strategy for fabricating hierarchically structured (nanoparticles-in-beads) Zn2SnO4 beads (ZTO-Bs), which were then used to produce ternary metal oxide-based dye-sensitized solar cells (DSSCs). DSSCs were fabricated using the ZTO-Bs as the photoelectrodes and highly absorbable organic dyes as the sensitizers. The DSSCs based on the ZTO-Bs and the organic dyes (SJ-E1 and SJ-ET1) exhibited the highest performance ever reported for DSSCs with ternary metal oxide-based photoelectrodes. The optimized DSSCs exhibited a power conversion efficiency of 6.3% (V-OC of 0.71 V, J(SC) of 12.2 mA cm(-2), FF of 0.72), which was much higher than that for DSSCs with conventional ZTO-NPs-based photoelectrodes or those based on the popular ruthenium-based dye, N719. The unique morphology of the ZTO-Bs allowed for improvements in dye absorption, light scattering, electrolyte penetration, and the charge recombination lifetime, while the organic dyes resulted in high molar absorbability. English NATURE PUBLISHING GROUP Hierarchically Structured Zn2SnO4 Nanobeads for High-Efficiency Dye-Sensitized Solar Cells Article 10.1038/srep07353 1 SCIENTIFIC REPORTS, v.4 SCIENTIFIC REPORTS 4 N scie scopus 000346273700001 2-s2.0-84923270489 Multidisciplinary Sciences Science & Technology - Other Topics Article TIO2 PHOTOELECTRODES PERFORMANCE FABRICATION NANOFIBERS SPHERES Hierachical structure Zn2SnO4 Nanobead electrospray dye-sensitized solar cell organic sensitizer