Condensable InP quantum dots solid

被引：6
|
作者：
Dung, Mai Xuan [1 ]
Tung, Dao Duy [1 ]
Jeong, Hyun-Dam [1 ]
机构：
[1] Chonnam Natl Univ, Dept Chem, Nanomat & Interface Lab, Kwangju 500757, South Korea
来源：
CURRENT APPLIED PHYSICS | 2013年 / 13卷 / 06期
关键词：
InP quantum dots; Ligand exchange; Condensation; Quantum dot solids; COLLOIDAL NANOCRYSTALS; SEMICONDUCTOR NANOCRYSTALS; CHARGE-TRANSPORT; SURFACE LIGANDS; FILMS; ASSEMBLIES; PRECURSORS; ARRAYS; DENSE;
D O I：
10.1016/j.cap.2013.02.017
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Colloidal thioacetic acid-capped InP quantum dots (InP-TAA QDs) and their spin coated-films have been examined in comparison with those of myristic acid-capped InP (InP-MA) QDs. While the QDs are far away from each other in the InP-MA QD films, even in a InP-MA QD film cured at 250 degrees C, upon thermal annealing a film of InP-TAA QDs at 250 degrees C, the indium thioacetate groups on the surfaces QDs likely condensed, thus resulting in the QD film that consists of individual and proximally packed InP QDs. The structures of the films of InP-MA QDs or InP-TAA QDs were characterized by means of TEM, XRD, and XPS. The current through the film of InP-TAA QDs cured at 250 degrees C was about 2-5 orders of magnitude higher than that of the film of InP-MA film annealed by the sample conditions. We, newly in this letter, define this kind of materials architecture as the condensable QDs solid concept. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：1075 / 1081
页数：7
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