期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 17, 期 2, 页码 1338-1344出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2017.12770
关键词
Antimony Selenide; Nanorod; Hot-Injection
类别
资金
- Scientific Research Foundation for the Returned Overseas Chinese Scholars [CG2015003004]
- National Natural Science Foundation of China (NSFC) [51502072]
Antimony selenide (Sb2Se3) is an interesting p-type semiconductor with a proper bandgap for photovoltaic devices. In this work, Sb2Se3 nanorods with controllable length-width ratios were synthesized via hot-injection method, where selenium powder was used as selenium sources and oleylamine was selected as reducing agent and high-point solvent. X-ray diffraction (XRD) patterns and high resolution Transmission electron microscope (HRTEM) results demonstrate that nanorods are wellcrystallized single crystalline and grow along the [110] direction. The reaction temperatures were found to have a noticeable influence on the morphologies of Sb2Se3 nanorods. The growth mechanism of the nanorods was discussed based on scanning electron microscope (SEM) observations. Vis-NIR absorption spectra reveal that the bandgaps of nanorods were between 0.75 eV and 1.1 eV. Electrical conductivities in dark and light were also investigated.
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