Direct evidence for carbon incorporation on the nitrogen site in AlN

IF 3.1 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Physical Review Materials Pub Date : 2024-09-11 DOI:10.1103/physrevmaterials.8.094602

Darshana Wickramaratne, Mackenzie Siford, Md Shafiqul Islam Mollik, John L. Lyons, M. E. Zvanut

引用次数: 0

Abstract

We use photo-electron paramagnetic resonance (EPR) measurements and first-principles calculations to identify and explain the properties of carbon in AlN. We present clear evidence for carbon substitution on the nitrogen site (

C_{N}

). We also clarify the origin of a widely observed EPR spectra in AlN that, although often attributed to a deep donor defect, we demonstrate is surprisingly due to

C_{N}

. Finally, we show the presence of

C_{N}

is consistent with the absorption spectra at 4.7 eV observed in AlN.

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氮化铝氮位上碳掺入的直接证据

我们利用光电子顺磁共振 (EPR) 测量和第一原理计算来识别和解释氮化铝中碳的特性。我们提出了氮位点（CN）上碳置换的明确证据。我们还澄清了在氮化铝中广泛观察到的 EPR 光谱的来源，虽然通常认为这是由于深供体缺陷造成的，但我们证明了这竟然是由于 CN 造成的。最后，我们证明了 CN 的存在与在 AlN 中观察到的 4.7 eV 处的吸收光谱是一致的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical Review Materials Physics and Astronomy-Physics and Astronomy (miscellaneous)

CiteScore

5.80

自引率

5.90%

发文量

611

期刊介绍： Physical Review Materials is a new broad-scope international journal for the multidisciplinary community engaged in research on materials. It is intended to fill a gap in the family of existing Physical Review journals that publish materials research. This field has grown rapidly in recent years and is increasingly being carried out in a way that transcends conventional subject boundaries. The journal was created to provide a common publication and reference source to the expanding community of physicists, materials scientists, chemists, engineers, and researchers in related disciplines that carry out high-quality original research in materials. It will share the same commitment to the high quality expected of all APS publications.