Solvothermal Route to Nanocrystalline CdSe

✍ Scribed by Y. Xie; W.Z. Wang; Y.T. Qian; X.M. Liu

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 100 KB
• Volume: 147
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1999.8179

✦ Synopsis

Nanocrystalline CdSe semiconductor was synthesized through a novel solvothermal process, in which CdCl 2 , Se, and Na reacted at 1203C for 6 h in an autoclave, and ethylenediamine was used as a solvent. An XRD pattern indicated a hexagonal CdSe phase. TEM imaging showed that the product consisted of homogeneous granular particles with an average size of about 7 nm. Photoluminescence spectra of the 7-nm CdSe showed a 0.3-eV blue shift compared with that of the bulk materials, indicating its quantum con5nement.