Synthesis and Size‐Dependent Magnetic Properties of Monodisperse EuS Nanocrystals†

Fei Zhao, Hao-Ling Sun, Gang Su, and Song Gao*

First published: 09 January 2006
https://doi.org/10.1002/smll.200500294
†This work was supported by the National Science Fund for Distinguished Young Scholars (20151024), NSFC Nos. 20221101, 20490210, and by the National Basic Research Program of China (2006CB601102).

Abstract

    Size‐controllable monodisperse europium(II) sulfide (EuS) nanocrystals were synthesized by thermal decomposition of single molecular precursors [Eu(phen)(ddtc)3] or [Eu(bpy)(ddtc)3]. These crystals range from nano‐polygons to nanocubes, and have uniform sizes from 2.6 to 20 nm (see Figure). They show size‐dependent optical and magnetic properties.