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Controlling the spectroscopic properties of quantum dots via energy transfer and charge transfer interactions: Concepts and applications

Paper ID Volume ID Publish Year Pages File Format Full-Text
32036 44891 2016 24 PDF Available
Title
Controlling the spectroscopic properties of quantum dots via energy transfer and charge transfer interactions: Concepts and applications
Abstract

•Unique photophysical properties of luminescent QDs.•External modulation of QD PL via energy transfer (ET) and/or charge transfer (CT) interactions.•Benefits of QD use in CT and ET interactions.•Sensor Design based on ET and CT.•Charge transfer implication for light-emitting and photovoltaic devices.

SummaryLuminescent quantum dots (QDs) exhibit size- and composition-tunable photophysical properties that are not shared by their bulk parent materials or at the molecular scale. They have attracted considerable interest further motivated by several potential applications. A particular interest has centered on exploiting the ability of QDs to engage in both fluorescence resonance energy transfer (FRET) and charge transfer (CT) interactions with proximal fluorophores and redox active molecules/complexes, respectively. In this review, we highlight how the QD's optical and spectroscopic properties can be controlled via FRET and/or CT interactions. We first show that QDs provide a unique platform for controlling both modes of interactions. We then provide representative examples in biology which include developing sensing assemblies that report on properties such as pH changes, enzymatic activity and ligand–receptor binding. Implications in electronic devices focus on light emitting devices and photovoltaic cells, where we discuss device architecture, control over carrier injection, carrier mobility, and exciton recombination.

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Keywords
Quantum dots; Confinement effects; Fluorescence; Fluorescence resonance energy transfer (FRET); Charge transfer (CT); Biosensing
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Controlling the spectroscopic properties of quantum dots via energy transfer and charge transfer interactions: Concepts and applications
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Publisher
Database: Elsevier - ScienceDirect
Journal: - Volume 11, Issue 1, February 2016, Pages 98–121
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us