Effect of Phosphine-Free Selenium Precursor Reactivity on The Optical and Vibrational properties of Colloidal CdSe Nanocrystals
| Autor: | L A Thi, N T T Lieu, N X Nghia, N Tran, V X Quang, N T Binh, N M Hoa |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Absorption spectroscopy Infrared spectroscopy chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences 0104 chemical sciences symbols.namesake chemistry symbols Reactivity (chemistry) Particle size 0210 nano-technology Luminescence Raman spectroscopy Spectroscopy Selenium |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 343:012027 |
| ISSN: | 1757-899X 1757-8981 |
| Popis: | Phosphine-free selenium precursor solutions have been prepared by heating at temperatures ranging from 160 °C to 240 °C and studied by means of infrared absorption spectroscopy. The colloidal CdSe nanocrystals (NCs) synthesized from all those solutions by the wet chemical method. The influence of heating temperature on the chemical reactivity of selenium precursor and its role on the optical and vibrational properties of CdSe NCs are discussed in details. Their morphology, particle size, structural, optical and vibrational properties were investigated using transmission electron microscopy, X-ray diffraction, UV-Vis, fluorescence and Raman spectroscopy, respectively. |
| Databáze: | OpenAIRE |
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