Stabilization of graphene quantum dots (GQDs) by encapsulation inside zeolitic imidazolate framework nanocrystals for photoluminescence tuning

被引：132

作者：

Biswal, Bishnu P. ^{[1
]}

Shinde, Dhanraj B. ^{[1
]}

Pillai, Vijayamohanan K. ^{[1
,2
]}

Banerjee, Rahul ^{[1
]}

机构：

[1] CSIR Natl Chem Lab, Phys Mat Chem Div, Pune 411008, Maharashtra, India

[2] CSIR Cent Electrochem Res Inst, Karaikkudi 630006, Tamil Nadu, India

来源：

NANOSCALE | 2013年 / 5卷 / 21期

关键词：

METAL-ORGANIC FRAMEWORKS; FUNCTIONAL-GROUPS; ENERGY-TRANSFER; SEPARATION; LIGHT; LUMINESCENCE; EFFICIENT; COMPOSITE; DEVICES; CAPTURE;

D O I：

10.1039/c3nr03511e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Luminescent graphene quantum dots (GQDs) are encapsulated and stabilized in Zeolitic Imidazolate Framework (ZIF-8) nanocrystals. The GQDs are well confined due to the adsorption on the growing face of the ZIF-8 nanocrystals and have a profound effect on the shape of the nanocrystals from rhombic dodecahedron to spherical. Stabilizing GQDs inside the ZIF-8 nanocrystals results in tailoring of the photoluminescence emission (ca. 32 nm, bathochromic shift) of the GQD@ZIF-8 nanocrystal composite even after 3 months of aging under normal laboratory conditions. Also the water adsorption (at STP) capacity increased for the GQD@ ZIF-8 composite as compared to the pristine ZIF-8.

引用

页码：10556 / 10561

页数：6

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