Tuning of Mn(II)-doped CdS-ZnSsolid solutions for broadband emission

被引:8
作者
Arora, Sonia [1 ]
Manoharan, S. Sundar [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Mat Chem Lab, Kanpur 208016, Uttar Pradesh, India
关键词
photoluminescence; microwave synthesis; quantization; spin-forbidden transitions;
D O I
10.1016/j.matchemphys.2008.01.007
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Single-phase solid solution of CdxZn1 - yMnyS offers possibility for tuning full color spectrum. A broad emission with FWHM of similar to 155 nm leading to a broadband emission can be harvested in a nominal composition such as Cd0.54Zn0.43Mn0.03S by a compounded effect of CdS, ZnS and ZnS:Mn responsible for blue, green and red emission, respectively. Contribution from (i) quantization of energy levels due to nano-dimension, (ii) emission arising from trap (mid-gap) states and (iii) Mn2+ spin-forbidden T-4(1)->(6)A(1) transition is responsible for the mechanism of PL in these solid solutions. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:34 / 37
页数:4
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