Quantum Dots and Their Multimodal Applications: A Review

By D. Bera, L. Qian, T. Tseng, P. Holloway. Materials, 2010

1,135 citations recorded by the source corpus.

Semiconducting quantum dots, whose particle sizes are in the nanometer range, have very unusual properties. The quantum dots have band gaps that depend in a complicated fashion upon a number of factors, described in the article. Processing-structure-properties-performance relationships are reviewed for compound semiconducting quantum dots. Various methods for synthesizing these quantum dots are discussed, as well as their resulting properties. Quantum states and confinement of their excitons may shift their optical absorption and emission energies. Such effects are important for tuning their luminescence stimulated by photons (photoluminescence) or electric field (electroluminescence). In this article, decoupling of quantum effects on excitation and emission are described, along with the use of quantum dots as sensitizers in phosphors. In addition, we reviewed the multimodal applications of quantum dots, including in electroluminescence device, solar cell and biological imaging.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/09e803cec03878a4c435db95cf8c7f805519e0de

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Citations in the corpus

• Luminescence origin of carbon based dots obtained from citric acid and amino group-containing molecules (2017, background): “The PL signal from the radiative relaxation is the defect emission, which is also observed in QDs [42].”
• Quantum dot plasmonics: from weak to strong coupling (2019, background): “The mentioned properties make QDs promising candidates for applications in nanophotonics and quantum optics [30].”
• Graphene quantum dots and their possible energy applications: A review (2016, background): “Among them, top-down and bottom-up strategies are well categorized [3].”
• Luminescence in Sulfides: A Rich History and a Bright Future (2010, neutral): “[229] for a more detailed discussion.”