Luminescent Polymer Composite Films Containing Coal-Derived Graphene Quantum Dots

被引：109

作者：

Kovalchuk, Anton ^{[1
]}

Huang, Kewei ^{[1
]}

Xiang, Changsheng ^{[1
]}

Marti, Angel A. ^{[1
,2
,3
]}

Tour, James M. ^{[1
,2
,3
]}

机构：

[1] Rice Univ, Dept Chem, Houston, TX 77005 USA

[2] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 USA

[3] Rice Univ, Smalley Inst Nanoscale Sci & Technol, Houston, TX 77005 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 47期

关键词：

fluorescent polymer composites; graphene quantum dots; nanocomposites; poly(vinyl alcohol); luminescent polymer composites; light emitting diodes; LIGHT-EMITTING-DIODES; CARBON DOTS; NANOCRYSTALS; BRIGHT; TRANSPARENT;

D O I：

10.1021/acsami.5b06057

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Luminescent polymer composite materials, based on poly(vinyl alcohol) (PVA), as a matrix polymer and graphene quantum dots (GQDs) derived from coal, were prepared by casting from aqueous solutions. The coal-derived GQDs impart fluorescent properties to the polymer matrix, and the fabricated composite films exhibit solid state fluorescence. Optical, thermal, and fluorescent properties of the PVA/GQD nanocomposites have been studied. High optical transparency of the composite films (78 to 91%) and excellent dispersion of the nanoparticles are observed at GQD concentrations from 1 to 5 wt %. The maximum intensity of materials photoluminescence has been achieved at 10 wt % GQD content. These materials could be used in light emitting diodes (LEDs), flexible electronic displays, and other optoelectronic applications.

引用

页码：26063 / 26068

页数：6

共 32 条

[1] Enhancement of the photoluminescence in CdSe quantum dot-polyvinyl alcohol composite by light irradiation [J].