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Influence of Phosphine-Free Solvents On the Structural and Optical Properties of Oleylamine Assisted Synthesis of CdS Nanocrystals
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Abstract
Synthesis of cadmium sulphide (CdS) nanocrystals was carried out using hot-injection method through oleylamine as solvent and capping ligand at 220oC. From the UV-visible absorption spectra, the band gap of the synthesized nanocrystals was estimated as 2.5 eV. X-ray diffraction pattern confirms the presence of wurtzite phase with their characteristic reflections. TEM analysis of the synthesized nanocrystals show that the nanocrystals are having nearly spherical shape with the diameter ⁓5-10 nm. For the comparison, different solvent mixtures were employed to prepare the CdS nanocrystals and the structural and optical results show that the solvents have significant influence on the optical properties of the prepared nanocrystals. The results are discussed in detail.
Springer Science and Business Media LLC
Title: Influence of Phosphine-Free Solvents On the Structural and Optical Properties of Oleylamine Assisted Synthesis of CdS Nanocrystals
Description:
Abstract
Synthesis of cadmium sulphide (CdS) nanocrystals was carried out using hot-injection method through oleylamine as solvent and capping ligand at 220oC.
From the UV-visible absorption spectra, the band gap of the synthesized nanocrystals was estimated as 2.
5 eV.
X-ray diffraction pattern confirms the presence of wurtzite phase with their characteristic reflections.
TEM analysis of the synthesized nanocrystals show that the nanocrystals are having nearly spherical shape with the diameter ⁓5-10 nm.
For the comparison, different solvent mixtures were employed to prepare the CdS nanocrystals and the structural and optical results show that the solvents have significant influence on the optical properties of the prepared nanocrystals.
The results are discussed in detail.
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