Microwave assisted synthesis of boron and nitrogen rich graphitic quantum dots to enhance fluorescence of photosynthetic pigments

Esranur Budak, Sümeyye Aykut, Mehmet Emin Paşaoğlu, Caner Ünlü*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Energy transfer between quantum dots and biomolecules is of interest due to high absorption capacity and high quantum efficiency of quantum dots. Amongst all types of quantum dots, graphene and graphitic quantum dots have great potential for energy transfer studies due to their high biocompatibility and low toxicity. In this study, a simple route to synthesize boron and nitrogen rich graphitic quantum dots (C-BN) and boron carbon nitride (BCN) quantum dots is demonstrated. Quantum dots were synthesized in a domestic microwave oven. Composition of quantum dots was controlled by tuning initial mole ratio of boron and nitrogen precursors. As molar ratio of boron precursor was increased, formation of C-BN quantum dots was favoured. C-BN quantum dots were mainly composed of boron and nitrogen (with around 10 % carbon) in their main composition, and sized around 2 nm with bright photoluminescence. To the best of our knowledge, this is the first study which proposes a bottom-up synthesis method to synthesize C-BN quantum dots based on domestic microwaves. Also, treating photosynthetic pigments with quantum dots resulted in 20 % enhancement of fluorescence of photosynthetic pigments at 670 nm, which demonstrates that C-BN and BCN quantum dots can be important constituents of artificial antenna systems for photosynthetic organisms.

Original languageEnglish
Article number100975
JournalMaterials Today Communications
Volume24
DOIs
Publication statusPublished - Sept 2020

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Ltd

Funding

This work was supported by TUBITAK (The Scientific and Technological Research Council of Turkey) under Career Development Programme for Young Researchers (Career Programme) (Programme No: 3501 ) [Grant number: 118Z259].

FundersFunder number
TUBITAK
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu3501, 118Z259

    Keywords

    • Boron nitride
    • Energy transfer
    • Graphitic quantum dots
    • Photosynthetic pigments

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