石墨烯不均匀性在太赫兹光激发下的可视化研究

IF 3.6 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-09-30 DOI:10.1016/j.jlumin.2025.121583

S.B. Bodrov , A.A. Murzanev , A.I. Korytin , Yu.A. Sergeev , A.V. Nezhdanov , A.V. Vodopyanov , D.V. Shestakov , E.I. Preobrazhensky , A.N. Stepanov

{"title":"石墨烯不均匀性在太赫兹光激发下的可视化研究","authors":"S.B. Bodrov , A.A. Murzanev , A.I. Korytin , Yu.A. Sergeev , A.V. Nezhdanov , A.V. Vodopyanov , D.V. Shestakov , E.I. Preobrazhensky , A.N. Stepanov","doi":"10.1016/j.jlumin.2025.121583","DOIUrl":null,"url":null,"abstract":"<div><div>Optical luminescence induced in graphene under intense terahertz pulses is investigated as a novel tool for visualization of graphene inhomogeneities (boundaries and macroscopic damages). The method is compared with the more established diagnostic approach based on graphene luminescence by optical excitation. Monolayer graphene samples on two different substrates – crystalline quartz and polyethylene terephthalate (PET) polymer – are examined using both methods, yielding images of the boundary and regions of the mechanically-damaged graphene. The terahertz-induced luminescence approach offers significant advantages: it produces higher-contrast images and remains effective on optically active substrates (e.g., PET), where optical-induced luminescence method fails. The obtained maps of the graphene samples are validated using optical and electron microscopy, as well as Raman spectroscopy.</div></div>","PeriodicalId":16159,"journal":{"name":"Journal of Luminescence","volume":"288 ","pages":"Article 121583"},"PeriodicalIF":3.6000,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Visualization of graphene inhomogeneities using luminescence under terahertz and optical excitation\",\"authors\":\"S.B. Bodrov , A.A. Murzanev , A.I. Korytin , Yu.A. Sergeev , A.V. Nezhdanov , A.V. Vodopyanov , D.V. Shestakov , E.I. Preobrazhensky , A.N. Stepanov\",\"doi\":\"10.1016/j.jlumin.2025.121583\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Optical luminescence induced in graphene under intense terahertz pulses is investigated as a novel tool for visualization of graphene inhomogeneities (boundaries and macroscopic damages). The method is compared with the more established diagnostic approach based on graphene luminescence by optical excitation. Monolayer graphene samples on two different substrates – crystalline quartz and polyethylene terephthalate (PET) polymer – are examined using both methods, yielding images of the boundary and regions of the mechanically-damaged graphene. The terahertz-induced luminescence approach offers significant advantages: it produces higher-contrast images and remains effective on optically active substrates (e.g., PET), where optical-induced luminescence method fails. The obtained maps of the graphene samples are validated using optical and electron microscopy, as well as Raman spectroscopy.</div></div>\",\"PeriodicalId\":16159,\"journal\":{\"name\":\"Journal of Luminescence\",\"volume\":\"288 \",\"pages\":\"Article 121583\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2025-09-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Luminescence\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S002223132500523X\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Luminescence","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S002223132500523X","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}

引用次数: 0

摘要

研究了在强太赫兹脉冲下石墨烯的光学发光，作为石墨烯不均匀性（边界和宏观损伤）可视化的新工具。将该方法与基于石墨烯光激发发光的诊断方法进行了比较。在两种不同的衬底（结晶石英和聚对苯二甲酸乙二醇酯（PET）聚合物）上的单层石墨烯样品使用这两种方法进行了检测，得到了机械损伤石墨烯的边界和区域的图像。太赫兹诱导发光方法具有显著的优势：它产生更高对比度的图像，并且在光学活性衬底（例如PET）上仍然有效，而光学诱导发光方法则失败。使用光学和电子显微镜以及拉曼光谱验证了获得的石墨烯样品的图。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Visualization of graphene inhomogeneities using luminescence under terahertz and optical excitation

Optical luminescence induced in graphene under intense terahertz pulses is investigated as a novel tool for visualization of graphene inhomogeneities (boundaries and macroscopic damages). The method is compared with the more established diagnostic approach based on graphene luminescence by optical excitation. Monolayer graphene samples on two different substrates – crystalline quartz and polyethylene terephthalate (PET) polymer – are examined using both methods, yielding images of the boundary and regions of the mechanically-damaged graphene. The terahertz-induced luminescence approach offers significant advantages: it produces higher-contrast images and remains effective on optically active substrates (e.g., PET), where optical-induced luminescence method fails. The obtained maps of the graphene samples are validated using optical and electron microscopy, as well as Raman spectroscopy.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.