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半导体量子点作为光活性超分子结构的组成部分。

Semiconductor Quantum Dots as Components of Photoactive Supramolecular Architectures.

机构信息

CLAN-Center for Light Activated Nanostructures Istituto per la Sintesi Organica e la Fotoreattività, Consiglio Nazionale delle Ricerche, Via Gobetti 101 40129 Bologna Italy.

Dipartimento di Scienze e Tecnologie Agro-alimentari Università di Bologna Viale Fanin 50 40127 Bologna Italy.

出版信息

ChemistryOpen. 2020 Feb 10;9(2):200-213. doi: 10.1002/open.201900336. eCollection 2020 Feb.

DOI:10.1002/open.201900336
PMID:32055433
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7008307/
Abstract

Luminescent quantum dots (QDs) are colloidal semiconductor nanocrystals consisting of an inorganic core covered by a molecular layer of organic surfactants. Although QDs have been known for more than thirty years, they are still attracting the interest of researchers because of their unique size-tunable optical and electrical properties arising from quantum confinement. Moreover, the controlled decoration of the QD surface with suitable molecular species enables the rational design of inorganic-organic multicomponent architectures that can show a vast array of functionalities. This minireview highlights the recent progress in the use of surface-modified QDs - in particular, those based on cadmium chalcogenides - as supramolecular platforms for light-related applications such as optical sensing, triplet photosensitization, photocatalysis and phototherapy.

摘要

发光量子点 (QDs) 是由胶体半导体纳米晶体组成的，由无机核覆盖一层有机表面活性剂分子层构成。尽管 QD 已经存在了三十多年，但由于其独特的尺寸可调谐的光学和电学性质源于量子限制，它们仍然吸引着研究人员的兴趣。此外，通过合适的分子物种对 QD 表面进行可控修饰，能够实现具有广泛功能的无机-有机多组分结构的合理设计。这篇小综述重点介绍了表面修饰的 QD 的最新进展，特别是基于镉的硫属化物的 QD，作为用于光相关应用的超分子平台，例如光学传感、三重态光敏化、光催化和光疗。

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