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Biomolecule-derived quantum dots for sustainable optoelectronics.

Satyapriya Bhandari1, Dibyendu Mondal1, S K Nataraj1

  • 1Centre for Nano and Material Sciences, JAIN (Deemed to be University) Jain Global Campus Bangalore 562112 India b.satyapriya@jainuniversity.ac.in m.dibyendu@jainuniversity.ac.in dmtapu@gmail.com.

Nanoscale Advances
|September 22, 2022
PubMed
Summary

Biomolecule-derived quantum dots (QDs) offer sustainable alternatives for optoelectronics due to their unique properties. This review explores their synthesis, characteristics, and applications in eco-friendly devices.

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Area of Science:

  • Materials Science and Engineering
  • Nanotechnology
  • Sustainable Chemistry

Background:

  • Biomolecules are abundant, cost-effective, and versatile precursors for fabricating quantum dots (QDs).
  • Biomolecule-derived QDs exhibit desirable properties like high photoluminescence, stability, and biocompatibility.
  • There is a growing need for sustainable optoelectronic technologies to address environmental concerns.

Purpose of the Study:

  • To review recent advances in the synthesis, properties, and optoelectronic applications of biomolecule-derived QDs.
  • To highlight carbon- and graphene-based QDs (C-QDs and G-QDs) derived from diverse biomolecules.
  • To discuss the merits, drawbacks, challenges, and future prospects of these QDs in sustainable optoelectronics.

Main Methods:

  • Exploration of biomolecules (plant extracts, sugars, proteins, nucleic acids, biomass) as precursors for QD synthesis.
  • Characterization of synthesized C-QDs and G-QDs for their optical and chemical properties.
  • Evaluation of QD performance in optoelectronic devices such as LEDs, solar cells, and photocatalysts.

Main Results:

  • Biomolecule-derived QDs demonstrate tunable optical properties and excellent biocompatibility.
  • C-QDs and G-QDs show significant potential as alternatives to traditional semiconductor QDs.
  • These bio-based QDs are applicable in bioimaging, biosensing, drug delivery, and sustainable optoelectronics.

Conclusions:

  • Biomolecule-derived QDs offer a sustainable pathway for developing advanced optoelectronic devices.
  • Utilizing natural resources and waste for QD fabrication aligns with environmental protection goals.
  • Further research in bio-optoelectronics can lead to innovative and eco-friendly technologies.