Synthesis of CdSe, ZnSe, and ZnxCd1-xSe nanocrystals and their silica sheathed core/shell structures

Jian-Ping Ge; Sheng Xu; Jing Zhuang; Xun Wang; Qing Peng; Ya-Dong Li

doi:10.1021/ic051598k

Synthesis of CdSe, ZnSe, and ZnxCd1-xSe nanocrystals and their silica sheathed core/shell structures

Inorg Chem. 2006 Jun 26;45(13):4922-7. doi: 10.1021/ic051598k.

Authors

Jian-Ping Ge¹, Sheng Xu, Jing Zhuang, Xun Wang, Qing Peng, Ya-Dong Li

Affiliation

¹ Department of Chemistry and the Key Laboratory of Atomic & Molecular Nanosciences, Tsinghua University, Beijing 100084, P. R. China.

PMID: 16780313
DOI: 10.1021/ic051598k

Abstract

Uniform ZnxCd1-xSe nanocrystals have been prepared at the artificially designed water-oil interface using Na2SeO3, Cd(NO3)2, and Zn(NO3)2 as precursors. The chemical composition and band gap of the ZnxCd1-xSe nanocrystals can be adjusted via different combinations of source material. The coating of a SiO2 shell could transform the hydrophobic particles into hydrophilic particles. An advantage of this method is that a water phase could be added to the oleic acid (OLEA) synthesis system, which could be extended to make the synthesis of various nanocrystals more simple and flexible.