Synthesis and characterization of sol-gel derived ZnS:Mn2+ nanocrystallites embedded in a silica matrix

被引：97

作者：

Bhattacharjee, B

Ganguli, D

Iakoubovskii, K

Stesmans, A

Chaudhuri, S ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, W Bengal, India

[2] Katholieke Univ Leuven, Dept Phys, B-3001 Louvain, Belgium

来源：

BULLETIN OF MATERIALS SCIENCE | 2002年 / 25卷 / 03期

关键词：

zinc sulphide; sol-gel; nanoparticles; luminescence; ESR;

D O I：

10.1007/BF02711150

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Synthesis and characterization of undoped and Mn2+ doped ZnS nanocrystallites (radius 2-3 nm) embedded in a partially densified silica gel matrix are presented. Optical transmittance, photoluminescence (PL), ellipsometric and electron spin resonance measurements revealed manifestation of quantum size effect. PL spectra recorded at room temperature revealed broad blue emission signal centred at similar to420 nm and Mn2+ related yellow-orange band centred at similar to590 nm while ESR indicated that Mn in ZnS was present as dispersed impurity rather than Mn cluster.

引用

页码：175 / 180

页数：6

共 23 条

[1] BANDGAP AND OPTICAL-TRANSITIONS IN THIN-FILMS FROM REFLECTANCE MEASUREMENTS [J].