Photoluminescence from PbS quantum dots and PbS/CdS core/shell quantum dots mixed with As2S3 glass

被引：3

作者：

Cao, Thanh Ha ^{[1
]}

Heo, Jong ^{[1
,2
]}

Kwon, Yong Kon ^{[1
]}

Jeong, Sanghwa ^{[3
]}

Kim, Sungjee ^{[3
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, 77 CheongAm Ro, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Div Adv Nucl Engn, Pohang 790784, South Korea

[3] Pohang Univ Sci & Technol POSTECH, Dept Chem, Pohang 790784, South Korea

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2016年 / 431卷

基金：

新加坡国家研究基金会;

关键词：

Quantum dots; Core/shell quantum dots; Lead sulfide; Cadmium sulfide; Arsenic trisulfide; Chalcogenide glasses; Composites; NANOCRYSTALS; QDS;

D O I：

10.1016/j.jnoncrysol.2015.05.006

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

PbS and PbS/CdS core/shell colloidal quantum dots (QDs) were mixed with As2S3 glass powders to prepare solid composite materials. PbS QDs showed an absorption band centered at a wavelength of lambda = 1478 nm and a photoluminescence (PL) band centered at lambda = 1547 nm. PbS/CdS core/shell QDs had higher PL intensity than did bare PbS QDs. Solid composites made by mixing QDs and As2S3 glass powders showed clear PL bands at lambda = 1385 nm. Optical fibers of As2S3 glass can be prepared from these composite materials if appropriate scale-up technology is realized. (C) 2015 Elsevier BM. All rights reserved.

引用

收藏

页码：76 / 78

页数：3

相关论文

共 14 条

[1] Quantum dot-layered double hydroxide composites for near-infrared emitting codes [J].

Cho, Seungho ;

Hong, Seong Cheol ;

Kim, Sungjee .

JOURNAL OF MATERIALS CHEMISTRY C, 2014, 2 (03) :450-457

[2] Colloidal PbS nanocrystals with size-tunable near-infrared emission: Observation of post-synthesis self-narrowing of the particle size distribution [J].

Hines, MA ;

Scholes, GD .

ADVANCED MATERIALS, 2003, 15 (21) :1844-1849

[3]

Ip AH, 2012, NAT NANOTECHNOL, V7, P577, DOI [10.1038/nnano.2012.127, 10.1038/NNANO.2012.127]

[4] All-chalcogenide middle infrared dielectric reflector and filter [J].

Kohoutek, T. ;

Orava, J. ;

Prikryl, J. ;

Wagner, T. ;

Frumar, M. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2011, 357 (01) :157-160

[5] Inorganically Functionalized PbS-CdS Colloidal Nanocrystals: Integration into Amorphous Chalcogenide Glass and Luminescent Properties [J].

Kovalenko, Maksym V. ;

Schaller, Richard D. ;

Jarzab, Dorota ;

Loi, Maria A. ;

Talapin, Dmitri V. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (05) :2457-2460

[6] Near-infrared photoluminescence of PbS QDs precipitated in the glass matrix [J].

Liu, Chao ;

Kwon, Yong Kon ;

Heo, Jong .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2008, 116 (1358) :1071-1074

[7] Absorption and photoluminescence of PbS QDs in glasses [J].

Liu, Chao ;

Kwon, Yong Kon ;

Heo, Jong .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2009, 355 (37-42) :1880-1883

[8] Size-Dependent Optical Properties of Colloidal PbS Quantum Dots [J].

Moreels, Iwan ;

Lambert, Karel ;

Smeets, Dries ;

De Muynck, David ;

Nollet, Tom ;

Martins, Jose C. ;

Vanhaecke, Frank ;

Vantomme, Andre ;

Delerue, Christophe ;

Allan, Guy ;

Hens, Zeger .

ACS NANO, 2009, 3 (10) :3023-3030

[9] SYNTHESIS AND CHARACTERIZATION OF NEARLY MONODISPERSE CDE (E = S, SE, TE) SEMICONDUCTOR NANOCRYSTALLITES [J].

MURRAY, CB ;

NORRIS, DJ ;

BAWENDI, MG .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (19) :8706-8715

[10] Synthesis and characterization of monodisperse nanocrystals and close-packed nanocrystal assemblies [J].

Murray, CB ;

Kagan, CR ;

Bawendi, MG .

ANNUAL REVIEW OF MATERIALS SCIENCE, 2000, 30 :545-610