Hot luminescence of Mn2+ in ZnS nanocrystals

被引：47

作者：

Yu, JQ ^{[1
]}

Liu, HM ^{[1
]}

Wang, YY ^{[1
]}

Jia, WY ^{[1
]}

机构：

[1] Univ Puerto Rico, Dept Phys, Mayaguez, PR 00681 USA

来源：

JOURNAL OF LUMINESCENCE | 1998年 / 79卷 / 03期

关键词：

hot luminescence; nanocrystals; ZnS : Mn2+;

D O I：

10.1016/S0022-2313(98)00036-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Time resolved emission spectra of Mn2+ in ZnS nanocrystals were studied. Two split-pair bands at high- and low-energy sides of the peak position of the conventional Mn2+ emission band were observed at short delay times. They emerge gradually into the conventional emission band of Mn2+. These two bands were assumed to be hot luminescence which comes from the vibronic transitions from the vibrational states of the excited state of Mn2+ to its ground state. The population and energy relaxation times of hot electrons were deduced. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：191 / 199

页数：9

共 35 条

[1]

ABRAMOV AP, 1987, ZH EKSP TEOR FIZ+, V92, P666

[2]

BAGAEV VS, 1979, SOV PHYS JETP, V50, P1013

[3] OPTICAL-PROPERTIES OF MANGANESE-DOPED NANOCRYSTALS OF ZNS [J].

BHARGAVA, RN ;

GALLAGHER, D ;

HONG, X ;

NURMIKKO, A .

PHYSICAL REVIEW LETTERS, 1994, 72 (03) :416-419

[4] TRANSPORT OF PHONONS INTO DIFFUSIVE MEDIA [J].

BRON, WE ;

PATEL, JL ;

SCHAICH, WL .

PHYSICAL REVIEW B, 1979, 20 (12) :5395-5397

[5] QUANTUM CRYSTALLITES AND NONLINEAR OPTICS [J].

BRUS, L .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1991, 53 (06) :465-474

[6]

CURIE D, 1963, LUMINESCENCE CRYSTAL, P44

[7] Upconverted hot luminescence of Cr4+ ions in Mg2GeO4 [J].

Demos, SG ;

Han, BY ;

Petricevic, V ;

Alfano, RR .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1996, 13 (11) :2396-2400

[8]

DIBARTOLO B, 1976, PHONONS RESONANCES S, P373

[9] BAND-STRUCTURE DETERMINATION OF GAAS FROM HOT-ELECTRON LUMINESCENCE [J].

FASOL, G ;

HUGHES, HP .

PHYSICAL REVIEW B, 1986, 33 (04) :2953-2956

[10] Stimulated emission of phonons in a ruby fiber [J].

Fokker, PA ;

Koster, WD ;

Dijkhuis, JI ;

deWijn, HW ;

Lu, L ;

Meltzer, RS ;

Yen, WM .

PHYSICAL REVIEW B, 1997, 56 (05) :2306-2308

← 1 2 3 4 →