量子点-分子配合物中的电子过程,Chemical Reviews

当前位置： X-MOL 学术 › Chem. Rev. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

量子点-分子配合物中的电子过程
Chemical Reviews ( IF 51.4 ) Pub Date : 2016-08-08 00:00:00 , DOI: 10.1021/acs.chemrev.6b00102
Rachel D. Harris ₁ , Stephanie Bettis Homan ₁ , Mohamad Kodaimati ₁ , Chen He ₁ , Alexander B. Nepomnyashchii ₁ , Nathaniel K. Swenson ₁ , Shichen Lian ₁ , Raul Calzada ₁ , Emily A. Weiss ₁

Affiliation

本文的主题是胶体量子点（QD），尤其是QD与邻近分子的相互作用。它涵盖了这些分子的各种功能，包括（i）QD的配体，通过电子或振动方式耦合到QD核心的局部表面状态或离域状态，（ii）QD的能量或电子供体或受体，以及（ iii）决定QD–QD或QD–分子相互作用的QD组件的结构组件。配体与胶体量子点相互作用的研究表明，配体不仅决定量子点的激发态动力学，而且在某些情况下还决定其基态电子结构。具体来说，本文讨论（i）胶体量子点的电子结构的测量及其表面化学的影响，特别是，偶极配体和激子离域配体的电子能量；（ii）分子在涉及量子点的界面电子和能量转移过程中的作用，包括电子到振动的能量转移以及量子点的配体壳作为控制其氧化还原活性的半透膜的用途；（iii）胶体量子点的特殊应用，即光氧化还原催化，它利用量子点核心的电子结构与其表面化学物质的结合来利用量子点激发态的能量来驱动化学反应。包括电子到振动的能量转移，以及将QD的配体壳用作控制其氧化还原活性的半透膜；（iii）胶体量子点的特殊应用，即光氧化还原催化，它利用量子点核心的电子结构与其表面化学物质的结合来利用量子点激发态的能量来驱动化学反应。包括电子到振动的能量转移，以及将QD的配体壳用作控制其氧化还原活性的半透膜；（iii）胶体量子点的特殊应用，即光氧化还原催化，它利用量子点核心的电子结构与其表面化学物质的结合来利用量子点激发态的能量来驱动化学反应。

"点击查看英文标题和摘要"

Electronic Processes within Quantum Dot-Molecule Complexes

The subject of this review is the colloidal quantum dot (QD) and specifically the interaction of the QD with proximate molecules. It covers various functions of these molecules, including (i) ligands for the QDs, coupled electronically or vibrationally to localized surface states or to the delocalized states of the QD core, (ii) energy or electron donors or acceptors for the QDs, and (iii) structural components of QD assemblies that dictate QD–QD or QD–molecule interactions. Research on interactions of ligands with colloidal QDs has revealed that ligands determine not only the excited state dynamics of the QD but also, in some cases, its ground state electronic structure. Specifically, the article discusses (i) measurement of the electronic structure of colloidal QDs and the influence of their surface chemistry, in particular, dipolar ligands and exciton-delocalizing ligands, on their electronic energies; (ii) the role of molecules in interfacial electron and energy transfer processes involving QDs, including electron-to-vibrational energy transfer and the use of the ligand shell of a QD as a semipermeable membrane that gates its redox activity; and (iii) a particular application of colloidal QDs, photoredox catalysis, which exploits the combination of the electronic structure of the QD core and the chemistry at its surface to use the energy of the QD excited state to drive chemical reactions.

更新日期：2016-08-08

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南