Structural, photoconductivity and photoluminescence characterization of cadmium sulfide quantum dots prepared by a co-precipitation method

• Published in: Electronic materials letters Vol. 7; no. 1; pp. 31 - 38
• Main Authors: Mishra, Sheo K., Srivastava, Rajneesh K., Prakash, S. G., Yadav, Raghvendra S., Panday, A. C.
• Format: Journal Article
• Language: English
• Published: Springer The Korean Institute of Metals and Materials 01.03.2011; 대한금속·재료학회
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Condensed Matter Physics; Materials Science; Nanotechnology; Nanotechnology and Microengineering; Optical and Electronic Materials; 전자/정보통신공학; quantum dots; negative photoconductivity; CdS; photoluminescence

In this paper, cadmium sulfide (CdS) quantum dots (QDs) are synthesized by a simple co-precipitation method. X-ray diffraction (XRD) confirmed the formation of a cubical zinc blend structure of CdS nanoparticles. Transmission Electron Microscopy (TEM) images revealed that the CdS QDs are of 2–5 nm i...