用PL和XPS光谱对比研究h-BN在4.09 eV的类原子发射源

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2024-12-23 DOI:10.1063/5.0243547

N. Maharjan, P. Joshi, E. Janzen, J. H. Edgar, M. L. Nakarmi

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引用次数: 0

摘要

利用深紫外（UV）光致发光（PL）和x射线光发射光谱（XPS）研究了六方氮化硼（h-BN）单晶在4.09 eV下原子样发射线的起源。通过对比具有和不具有4.09 eV尖锐发射线的h-BN样品的PL光谱，分析了高分辨率XPS光谱，结果表明，在具有4.09 eV发射线的样品中，碳与硼和氮同时成键。结果表明，h-BN中产生4.09 eV谱线的缺陷与碳有关，表明缺陷结构中元素碳同时占据硼（CB）和氮（CN）两个位点。

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Investigation of the origin of atomic-like emission at 4.09 eV from h-BN by correlating PL and XPS spectra

Deep ultraviolet (UV) photoluminescence (PL) and x-ray photoemission spectroscopy (XPS) were employed to investigate the origin of the atomic-like emission line at 4.09 eV from hexagonal boron nitride (h-BN) single crystals. High resolution XPS spectra analyzed by correlating PL spectra of the h-BN samples with and without the sharp emission line at 4.09 eV showed that carbon is bonding to both boron and nitrogen in the sample that has the 4.09 eV emission line. Our results showed that the defect responsible for the origin of the 4.09 eV line from h-BN is carbon related and it suggests that the defect structure has elemental carbon occupying both boron (CB) and as nitrogen (CN) sites.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.