Effect of cadmium concentration on the structural, morphological, and optical properties of ZnS nanoparticles

被引：2
作者：
Mummadi, Ravi Sankar Reddy [1 ]
Shaik, Kaleemulla [2 ]
机构：
[1] Vellore Inst Technol, Sch Adv Sci, Thin Films Lab, Vellore 632014, Tamil Nadu, India
[2] Vellore Inst Technol, Ctr Funct Mat, Thin Films Lab, Vellore 632014, Tamil Nadu, India
来源：
PHYSICA B-CONDENSED MATTER | 2024年 / 688卷
关键词：
Nanoparticles; Cubic structure; BET analysis; Semiconductor; Photoluminescence; X-ray photoelectron; DOPED ZNS; PHOTOCATALYTIC ACTIVITY; QUANTUM DOTS; NANOSTRUCTURES; GAP;
D O I：
10.1016/j.physb.2024.416125
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The present study is focused on the synthesis and characterization of the Zn 1- x Cu x S nanoparticles at x = 0, 0.03, 0.05, 0.07 that find application in optoelectronic devices. The synthesized nanoparticles were subjected to various characterizations. From the XRD profile, it was found that Zn 1- x Cu x S nanoparticles are in a cubic structure. The EDAX spectrum confirms that zinc, sulfur, and cadmium are present in stoichiometric ratios. The FE -SEM and TEM nanographs confirm the formation of spherical-shaped clusters. The crystal structure and texture of the samples were confirmed by SAED patterns. The specific surface area and pore diameter were estimated using a BET surface analyzer. The band gap of the samples was determined using Tauc's and Cody's relation, and it decreased as the Cd concentration increased. The Zn 1- x Cu x S nanoparticles exhibited photoluminescence, and emission peaks were observed in the visible region. The XPS studies confirmed the presence of dopant cadmium in the Cd 2+ ions state.
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页数：13
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