Directing Charge Transfer in Quantum Dot Assemblies,Accounts of Chemical Research

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Directing Charge Transfer in Quantum Dot Assemblies
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2018-10-05 00:00:00 , DOI: 10.1021/acs.accounts.8b00355
Brian P. Bloom ₁ , Ruibin Liu ₂ , Peng Zhang ₂ , Supriya Ghosh ₁ , Ron Naaman ₃ , David N. Beratan _{2,

4,

5} , David H. Waldeck ₁

Affiliation

The optical and electronic properties of semiconductor quantum dots (QDs) make them attractive candidates for applications in photovoltaics, spintronics, photocatalysis, and optoelectronics. Understanding how to control the flow of charge in QD assemblies is essential for realizing novel applications. This Account explores some unique characteristics of charge transport in QD dyads, triads, and their assemblies. The emerging features of these assemblies that provide new opportunities to manipulate charge flow at the nanoscale are (1) cascading energy landscapes and band offsets to inhibit charge recombination, (2) electrostatic fields that direct charge flow through QD–QD and QD-conjugated polymer junctions, and (3) QD chirality and chiral imprinting that promotes vectorial electron and spin selective transport.

中文翻译：

指导量子点组件中的电荷转移

半导体量子点（QD）的光学和电子特性使其成为光伏，自旋电子学，光催化和光电子学应用的有吸引力的候选者。了解如何控制QD组件中的电荷流对于实现新颖的应用至关重要。该帐户探讨了QD二元组，三元组及其组件中电荷传输的一些独特特征。这些组件的新兴特征为在纳米级上操纵电荷流提供了新的机会：（1）级联的能量格局和能带偏移以抑制电荷重组，（2）引导电荷流过QD–QD和QD共轭聚合物的静电场连接和（3）QD手性和手性烙印，可促进矢量电子和自旋选择性转运。

更新日期：2018-10-05

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