Yang, Wooseok Ahn, Jihoon Oh, Yunjung Tan, Jeiwan Lee, Hyungsoo Park, Jaemin Kwon, Hyeok-Chan Kim, Juran Jo, William Kim, Joosun Moon, Jooho 2024-01-19T22:34:24Z 2024-01-19T22:34:24Z 2021-09-03 2018-05-15 1614-6832 https://pubs.kist.re.kr/handle/201004/121371 Sb2Se3 has recently spurred great interest as a promising light-absorbing material for solar energy conversion. Sb2Se3 consists of 1D covalently linked nanoribbons stacked via van der Waals forces and its properties strongly depend on the crystallographic orientation. However, strategies for adjusting the anisotropy of 1D Sb2Se3 nanostructures are rarely investigated. Here, a novel approach is presented to fabricate 1D Sb2Se3 nanostructure arrays with different aspect ratios on conductive substrates by simply spin-coating Sb-Se solutions with different molar ratios of thioglycolic acid and ethanolamine. A relatively small proportion of thioglycolic acid induces the growth of short Sb2Se3 nanorod arrays with preferred orientation, leading to fast carrier transport and enhanced photocurrent. After the deposition of TiO2 and Pt, an appropriately oriented Sb2Se3 nanostructure array exhibits a significantly enhanced photoelectrochemical performance; the photocurrent reaches 12.5 mA cm(-2) at 0 V versus reversible hydrogen electrode under air mass 1.5 global illumination. English WILEY-V C H VERLAG GMBH CU2ZNSNS4 PHOTOCATHODES HYDROGEN-PRODUCTION ENERGY-CONVERSION THIOGLYCOLIC ACID SOLVENT MIXTURE RAMAN-SPECTRA ATOMIC LAYER SOLAR-CELLS THIN-FILMS NANOWIRES Adjusting the Anisotropy of 1D Sb2Se3 Nanostructures for Highly Efficient Photoelectrochemical Water Splitting Article 10.1002/aenm.201702888 1 ADVANCED ENERGY MATERIALS, v.8, no.14 ADVANCED ENERGY MATERIALS 8 14 scie scopus 000435713600010 2-s2.0-85040797343 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Energy & Fuels Materials Science Physics Article CU2ZNSNS4 PHOTOCATHODES HYDROGEN-PRODUCTION ENERGY-CONVERSION THIOGLYCOLIC ACID SOLVENT MIXTURE RAMAN-SPECTRA ATOMIC LAYER SOLAR-CELLS THIN-FILMS NANOWIRES anisotropy photoelectrochemical water splitting Sb2Se3 nanostructures thiol-amine mixture ratio