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Electronic transport in quantum-dot-in-perovskite solids
Nanoscale ( IF 5.8 ) Pub Date : 2022-11-17 , DOI: 10.1039/d2nr04244d
Steven C Erwin 1 , Alexander L Efros 1
Affiliation  

We investigate theoretically the band transport of electrons and holes in a “quantum-dot-in-perovskite” solid, a periodic array of semiconductor nanocrystal quantum dots embedded in a matrix of lead halide perovskite. For concreteness we focus on PbS quantum dots passivated by inorganic halogen ligands and embedded in a matrix of CsPbI3. We find that the halogen ligands play a decisive role in determining the band offset between the dot and matrix and may therefore provide a straightforward way to control transport experimentally. The model and analysis developed here may readily be generalized to analyze band transport in a broader class of dot-in-solid materials.

中文翻译:

钙钛矿固体中量子点的电子传输

我们从理论上研究了“钙钛矿中的量子点”固体中电子和空穴的能带传输,固体是嵌入卤化铅钙钛矿基质中的半导体纳米晶体量子点的周期性阵列。具体而言,我们关注由无机卤素配体钝化并嵌入 CsPbI 3矩阵中的 PbS 量子点。我们发现卤素配体在确定点和矩阵之间的带偏移方面起着决定性作用,因此可能提供一种直接的方法来通过实验控制传输。这里开发的模型和分析可以很容易地推广到分析更广泛的固体材料中的带传输。
更新日期:2022-11-17
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