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Issue 21, 2013
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Stabilization of graphene quantum dots (GQDs) by encapsulation inside zeolitic imidazolate framework nanocrystals for photoluminescence tuning

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Abstract

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.

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

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Publication details

The article was received on 09 Jul 2013, accepted on 01 Sep 2013 and first published on 05 Sep 2013


Article type: Paper
DOI: 10.1039/C3NR03511E
Nanoscale, 2013,5, 10556-10561

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

    B. P. Biswal, D. B. Shinde, V. K. Pillai and R. Banerjee, Nanoscale, 2013, 5, 10556
    DOI: 10.1039/C3NR03511E

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