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通过二硫化钼涂层实现氮化镓表面钝化

GaN Surface Passivation by MoS Coating.

作者信息

Chen Danxuan, Jiang Jin, Weatherley Thomas F K, Carlin Jean-François, Banerjee Mitali, Grandjean Nicolas

机构信息

Laboratory of Advanced Semiconductors for Photonics and Electronics, Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.

Laboratory of Quantum Physics, Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.

出版信息

Nano Lett. 2024 Aug 21;24(33):10124-10130. doi: 10.1021/acs.nanolett.4c02259. Epub 2024 Aug 12.

DOI:10.1021/acs.nanolett.4c02259
PMID:39132976
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11342355/
Abstract

In this study, we investigate the impact of two-dimensional MoS coating on the optical properties of surface GaN/AlGaN quantum wells (QWs). A strong enhancement in GaN QW light emission is observed with monolayer-MoS coating, yielding luminescence intensity comparable to that from a QW capped by an AlGaN barrier. Our results demonstrate that MoS, despite its quite different nature from III-nitride semiconductors, acts as an effective barrier for surface GaN QWs and suppresses spatially localized intrinsic surface states. This finding provides novel pathways for efficient III-nitride surface passivation.

摘要

在本研究中，我们研究了二维MoS涂层对表面GaN/AlGaN量子阱（QW）光学性质的影响。通过单层MoS涂层观察到GaN量子阱发光有显著增强，产生的发光强度与由AlGaN势垒覆盖的量子阱相当。我们的结果表明，尽管MoS与III族氮化物半导体性质截然不同，但它对表面GaN量子阱起到了有效的势垒作用，并抑制了空间局域化的本征表面态。这一发现为高效的III族氮化物表面钝化提供了新途径。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/2882cad6071e/nl4c02259_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/3b3a3367cacf/nl4c02259_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/824ce7219a89/nl4c02259_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/789ee205220c/nl4c02259_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/0d994411e715/nl4c02259_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/2882cad6071e/nl4c02259_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/3b3a3367cacf/nl4c02259_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/824ce7219a89/nl4c02259_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/789ee205220c/nl4c02259_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/0d994411e715/nl4c02259_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/345b/11342355/2882cad6071e/nl4c02259_0005.jpg

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本文引用的文献

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