前驱体对硫化镉纳米颗粒的形貌和电子性质影响的对比研究。

Comparative study on the effect of precursors on the morphology and electronic properties of CdS nanoparticles.

作者信息

Ketchemen Kevin I Y, Mlowe Sixberth, Nyamen Linda D, Ndifon Peter T, Revaprasadu Neerish

机构信息

Department of Chemistry, Faculty of Science and Agriculture, University of Zululand, KwaDlangezwa South Africa.

Department of Inorganic Chemistry, Faculty of Science, University of Yaoundé I, Yaoundé Cameroon.

出版信息

Turk J Chem. 2021 Apr 28;45(2):400-409. doi: 10.3906/kim-2009-9. eCollection 2021.

DOI:10.3906/kim-2009-9

PMID:34104052

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8164203/

Abstract

Cadmium dithiocarbamate and cadmium ethyl xanthate complexes were synthesized and characterized by microanalysis, Fourier transform infrared (FT-IR) spectroscopy and thermogravimetric analyses. The complexes were employed as molecular precursors for the fabrication of CdS nanoparticles in hexadecylamine (HDA) and oleylamine (OLA) at a temperature of 250 °C. Spherical and oval shaped particles with sizes ranging from 9.93 ± 1.89 to 16.74 ± 2.78 nm were obtained in OLA while spherical, oval and rod shaped particles with sizes ranging from 9.40 ± 1.65 to 29.90 ± 5.32 nm were obtained in HDA. Optical properties of the nanoparticles showed blue shifts as compared to the bulk CdS, with the OLA capped nanoparticles slightly more blue shifted than the corresponding HDA capped nanoparticles. Results of crystallinity patterns revealed hexagonal phase of CdS.

摘要

合成了二硫代氨基甲酸镉和乙基黄原酸镉配合物，并通过微量分析、傅里叶变换红外（FT-IR）光谱和热重分析对其进行了表征。这些配合物被用作分子前驱体，在250℃的温度下于十六胺（HDA）和油胺（OLA）中制备硫化镉纳米颗粒。在OLA中获得了尺寸范围为9.93±1.89至16.74±2.78nm的球形和椭圆形颗粒，而在HDA中获得了尺寸范围为9.40±1.65至29.90±5.32nm的球形、椭圆形和棒状颗粒。与块状硫化镉相比，纳米颗粒的光学性质显示出蓝移，OLA包覆的纳米颗粒的蓝移比相应的HDA包覆的纳米颗粒略大。结晶度图谱结果显示硫化镉为六方相。