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增强和调节正辛胺修饰的氟化石墨烯的非线性光学响应及波长捷变强光学限幅作用

Enhancing and Tuning the Nonlinear Optical Response and Wavelength-Agile Strong Optical Limiting Action of -octylamine Modified Fluorographenes.

作者信息

Stathis Aristeidis, Stavrou Michalis, Papadakis Ioannis, Obratzov Ievgen, Couris Stelios

机构信息

Department of Physics, University of Patras, 26504 Patras, Greece.

Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), P.O. Box 1414, 26504 Patras, Greece.

出版信息

Nanomaterials (Basel). 2020 Nov 23;10(11):2319. doi: 10.3390/nano10112319.

DOI:10.3390/nano10112319
PMID:33238499
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7700198/
Abstract

Fluorographene has been recently shown to be a suitable platform for synthesizing numerous graphene derivatives with desired properties. In that respect, -octylamine-modified fluorographenes with variable degrees of functionalization are studied and their nonlinear optical properties are assessed using 4 ns pulses. A very strong enhancement of the nonlinear optical response and a very efficient optical limiting action are observed, being strongly dependent on the degree of functionalization of fluorographene. The observed enhanced response is attributed to the increasing number of defects because of the incorporation of N-heteroatoms in the graphitic network upon functionalization with -octylamine. The present work paves the way for the controlled covalent functionalization of graphene enabling a scalable access to a wide portfolio of graphene derivatives with custom-tailored properties.

摘要

最近研究表明，氟石墨烯是合成具有所需特性的众多石墨烯衍生物的合适平台。在这方面，研究了具有不同官能化程度的辛胺改性氟石墨烯，并使用4纳秒脉冲评估了它们的非线性光学性质。观察到非线性光学响应有非常强烈的增强以及非常有效的光限幅作用，这强烈依赖于氟石墨烯的官能化程度。观察到的增强响应归因于在与辛胺官能化时，由于氮杂原子掺入石墨网络而导致缺陷数量增加。目前的工作为石墨烯的可控共价官能化铺平了道路，使得能够以可扩展的方式获得具有定制特性的多种石墨烯衍生物。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/b6406a329515/nanomaterials-10-02319-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/4cbd2a816b53/nanomaterials-10-02319-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/9dfe00afe0b4/nanomaterials-10-02319-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/0f1daf30212a/nanomaterials-10-02319-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/8e79f5bfb7e7/nanomaterials-10-02319-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/af7fbd53a066/nanomaterials-10-02319-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/c67689407b49/nanomaterials-10-02319-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/04036eba338b/nanomaterials-10-02319-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/b6406a329515/nanomaterials-10-02319-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/4cbd2a816b53/nanomaterials-10-02319-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/9dfe00afe0b4/nanomaterials-10-02319-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/0f1daf30212a/nanomaterials-10-02319-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/8e79f5bfb7e7/nanomaterials-10-02319-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/af7fbd53a066/nanomaterials-10-02319-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/c67689407b49/nanomaterials-10-02319-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/04036eba338b/nanomaterials-10-02319-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a4b/7700198/b6406a329515/nanomaterials-10-02319-g008.jpg

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J Phys Chem Lett. 2018 Jul 5;9(13):3580-3585. doi: 10.1021/acs.jpclett.8b01596. Epub 2018 Jun 15.
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Reactivity of fluorographene is triggered by point defects: beyond the perfect 2D world.氟石墨烯的反应活性由点缺陷引发：超越完美的 2D 世界。
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