Colloidal lead sulfide nanocrystals with strong green emission

被引：14
|
作者：
Ghamsari, M. Sasani [1 ,2 ]
Ara, M. H. Majles [2 ]
Radiman, S. [3 ]
Zhang, X. H. [4 ]
机构：
[1] NSTRI, Laser & Opt Res Sch, Tehran 111553486, Iran
[2] Kharazmi Univ, Dept Phys, Photon Lab, Tehran, Iran
[3] Natl Univ Malaysia UKM, Sch Appl Phys, Fac Sci & Technol, Bangi 43600, Selangor, Malaysia
[4] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore
来源：
JOURNAL OF LUMINESCENCE | 2013年 / 137卷
关键词：
PbS nanocrystals; Green emission; Colloidal technique; PBS QUANTUM DOTS; SURFACE MODIFICATION; PHOTOLUMINESCENCE; NANOPARTICLES; SPECTROSCOPY; AGGREGATION; POLYMERS; DYNAMICS; SHELL; WATER;
D O I：
10.1016/j.jlumin.2012.12.047
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Facile colloidal technique was used to synthesize PbS nanocrystals. Surface functionalization and size control of the prepared lead sulfide nanocrystals was achieved by PVA. In order to evaluate the novelty of optical properties of the prepared sample, absorption, photoluminescence and time resolved photoluminescence studies was carried out. The size and morphology of PbS nanocrystals were also studied by HRTEM. Our investigation showed that the synthesized sample has strong green emission that has not been reported before. Time evolution of green emission has been analyzed after one and five months. The obtained results confirmed that the synthesized sample has high potential for biological applications. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：241 / 244
页数：4
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