Origin of the green photoluminescence from zinc sulfide nanobelts

被引：188

作者：

Ye, CH ^{[1
]}

Fang, XS

Li, GH

Zhang, LD

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 15期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.1807018

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

ZnS nanobelts with a pure wurtzite phase have been synthesized by 4 thermal evaporation method with the assistance of H2S in an Ar atmosphere. Photoluminescence band centered at about 535 nm has been observed under excitation in the range of 250-480 nm with decay rate as short as 860 ps. The origin of this intense photoluminescence is related to elemental sulfur species on the surface of the ZnS nanobelts. This assignment is substantiated by structural analysis by high-resolution electron microscopy, x-ray photoelectron spectroscopy, and photoluminescence and excitation technique. ZnS nanobelts with intense surface photoluminescence could be used as effective green light emitters, humid sensors, and UV light detectors. (C) 2004 American Institute of Physics.

引用

页码：3035 / 3037

页数：3

共 21 条

[1] PHOTO-LUMINESCENCE AND PHOTOINDUCED OXYGEN-ADSORPTION OF COLLOIDAL ZINC-SULFIDE DISPERSIONS [J].

BECKER, WG ;

BARD, AJ .

JOURNAL OF PHYSICAL CHEMISTRY, 1983, 87 (24) :4888-4893

[2] Long-lived Mn2+ emission in nanocrystalline ZnS:Mn2+ [J].

Bol, AA ;

Meijerink, A .

PHYSICAL REVIEW B, 1998, 58 (24) :15997-16000

[3] Luminescence quantum efficiency of nanocrystalline ZnS:Mn2+.: 2.: Enhancement by UV irradiation [J].

Bol, AA ;

Meijerink, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (42) :10203-10209

[4] Study of the growth of ZnS nanoparticles in water/AOT/n-heptane microemulsions by UV-absorption spectroscopy [J].

Calandra, P ;

Goffredi, M ;

Liveri, VT .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1999, 160 (01) :9-13

[5] Luminescence studies of localized gap states in colloidal ZnS nanocrystals [J].

Denzler, D ;

Olschewski, M ;

Sattler, K .

JOURNAL OF APPLIED PHYSICS, 1998, 84 (05) :2841-2845

[6] Mn-doped ZnS nanoparticles as efficient low-voltage cathodoluminescent phosphors [J].

Dinsmore, AD ;

Hsu, DS ;

Gray, HF ;

Qadri, SB ;

Tian, Y ;

Ratna, BR .

APPLIED PHYSICS LETTERS, 1999, 75 (06) :802-804

[7] IMPORTANCE OF SURFACE-REACTIONS IN THE PHOTOCHEMISTRY OF ZNS COLLOIDS [J].

DUNSTAN, DE ;

HAGFELDT, A ;

ALMGREN, M ;

SIEGBAHN, HOG ;

MUKHTAR, E .

JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (17) :6797-6804

[8] Surface characteristics of ZnS nanocrystallites relating to their photocatalysis for CO2 reduction [J].

Fujiwara, H ;

Hosokawa, H ;

Murakoshi, K ;

Wada, Y ;

Yanagida, S .

LANGMUIR, 1998, 14 (18) :5154-5159

[9] Hydrogen-assisted thermal evaporation synthesis of ZnS nanoribbons on a large scale [J].

Jiang, Y ;

Meng, XM ;

Liu, J ;

Xie, ZY ;

Lee, CS ;

Lee, ST .

ADVANCED MATERIALS, 2003, 15 (04) :323-327

[10] Photophysical properties of ZnS nanoclusters [J].

Kumbhojkar, N ;

Nikesh, VV ;

Kshirsagar, A ;

Mahamuni, S .

JOURNAL OF APPLIED PHYSICS, 2000, 88 (11) :6260-6264

← 1 2 3 →