Raman scattering and photoluminescence of Mn-doped nanocrystals of ZnS formed by the pressure cycle method

被引：13

作者：

Kobayashi, M ^{[1
]}

Iwata, H ^{[1
]}

Hanzawa, H ^{[1
]}

Yoshiue, T ^{[1
]}

Endo, S ^{[1
]}

机构：

[1] OSAKA UNIV, EXTREME MAT RES CTR, TOYONAKA, OSAKA 560, JAPAN

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1996年 / 198卷 / 01期

关键词：

D O I：

10.1002/pssb.2221980168

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Zn1-xMnxS (x = 0.043) undergoes a pressure-induced phase transition at 14.1 GPa from the zincblende to the NaCl structure. We have measured Raman scattering for a pressure released sample after compressing up to 16 GPa in a diamond anvil cell. The LO peak has shifted to lower energy compared with a virgin sample, which indicates the quantum confinement of LO phonons in nanocrystals formed by the pressure cycle. The diameter of nanocrystals is estimated to be 8 nm according to the spatial correlation model, in agreement with the value estimated from X-ray diffraction data. The observed decrease of photoluminescence intensity and the shortening of the decay time for the T-4(1)-->(6)A(1) transition within the Mn2+ ion are ascribed to the formation of nonradiative centers in the nanocrystals.

引用

页码：515 / 520

页数：6

共 12 条

[1] A RAMAN-STUDY OF ZN1-XMNXS MIXED-CRYSTALS [J].

ANASTASSIADOU, A ;

LIAROKAPIS, E ;

ANASTASSAKIS, E .

SOLID STATE COMMUNICATIONS, 1989, 69 (02) :137-142

[2]

BESERMAN R, 1971, INT C PHONONS RENNES, P405

[3] HIGH-PRESSURE PHASE-TRANSITION AND PHASE-DIAGRAM OF GALLIUM-ARSENIDE [J].

BESSON, JM ;

ITIE, JP ;

POLIAN, A ;

WEILL, G ;

MANSOT, JL ;

GONZALEZ, J .

PHYSICAL REVIEW B, 1991, 44 (09) :4214-4234

[4] 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

[5] THE EFFECTS OF MICROCRYSTAL SIZE AND SHAPE ON THE ONE PHONON RAMAN-SPECTRA OF CRYSTALLINE SEMICONDUCTORS [J].

CAMPBELL, IH ;

FAUCHET, PM .

SOLID STATE COMMUNICATIONS, 1986, 58 (10) :739-741

[6]

Cullity B.D., 1956, ELEMENTS XRAY DIFFRA

[7]

FAUCHET PM, 1988, CRIT REV SOLID STATE, V14, pS79

[8]

Giriat W., 1984, Progress in Crystal Growth and Characterization, V10, P87, DOI 10.1016/0146-3535(84)90022-4

[9] High pressure effects on optical properties of CdS [J].

Kobayashi, M ;

Iwata, H ;

Horiguchi, T ;

Endo, S .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1996, 198 (01) :521-525

[10] ABSORPTION-SPECTRA OF OPTICALLY PUMPED ZNS DOUBLE-BOND MN [J].

KUSHIDA, T ;

TANAKA, Y ;

OKA, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1974, 37 (05) :1341-1348

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