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

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2008年 / 110卷 / 01期

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

页码：34 / 37

页数：4

共 24 条

[21] RELAXATION DUE TO MULTIPLE LONGITUDINAL-OPTICAL-PHONON EMISSION AND DISSOCIATION OF EXCITON IN CD0.3ZN0.7S/ZNS STRAINED-LAYER SUPERLATTICES [J].

TAGUCHI, T ;

ENDOH, Y ;

NOZUE, Y .

APPLIED PHYSICS LETTERS, 1991, 59 (26) :3434-3436

[22] CDS NANOCLUSTERS - SYNTHESIS, CHARACTERIZATION, SIZE-DEPENDENT OSCILLATOR STRENGTH, TEMPERATURE SHIFT OF THE EXCITONIC-TRANSITION ENERGY, AND REVERSIBLE ABSORBENCY SHIFT [J].

VOSSMEYER, T ;

KATSIKAS, L ;

GIERSIG, M ;

POPOVIC, IG ;

DIESNER, K ;

CHEMSEDDINE, A ;

EYCHMULLER, A ;

WELLER, H .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (31) :7665-7673

[23] Room-temperature synthesis and characterization of nanocrystalline CdS, ZnS, and CdxZn1-xS [J].

Wang, WZ ;

Germanenko, I ;

El-Shall, MS .

CHEMISTRY OF MATERIALS, 2002, 14 (07) :3028-3033

[24] Alloyed ZnxCd1-xS nanocrystals with highly narrow luminescence spectral width [J].

Zhong, XH ;

Feng, YY ;

Knoll, W ;

Han, MY .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (44) :13559-13563

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