Self-assembled graphene-based microfibers with eclectic optical properties

The construction of graphene-based microfibers with reinforced mechanical and electrical properties has been the subject of numerous researches in recent years. However, the fabrication of graphene-based fibers with remarkable optical features still remains a challenge and has not been addressed so...

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Bibliographic Details
Published in:Scientific reports 2021-03, Vol.11 (1), p.5451-12, Article 5451
Main Authors: Ghamsari, Mahdi, Madrakian, Tayyebeh, Afkhami, Abbas, Ahmadi, Mazaher
Format: Article
Language:English
Subjects:
639/301/357/551
639/301/357/918
Birefringence
Electrical properties
Fabrication
Fibers
Graphene
Humanities and Social Sciences
multidisciplinary
Optical properties
Science
Science (multidisciplinary)
Sonication
Textiles
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Summary:The construction of graphene-based microfibers with reinforced mechanical and electrical properties has been the subject of numerous researches in recent years. However, the fabrication of graphene-based fibers with remarkable optical features still remains a challenge and has not been addressed so far. This paper aims to report a series of flexible self-assembled fibers, synthesized through a few-minute sonication of thermally oxidized graphene oxide nanosheets, so-called Nanoporous Over-Oxidized Graphene (NOG), in an acidic medium. These free-standing glassy fibers were classified into four distinct morphological structures and displayed a collection of intriguing optical properties comprising high transparency, strong birefringence, fixed body colorations (e.g. colorless, blue, green, and red), tunable interference marginal colorations, UV–visible-near IR fluorescence, and upconversion emissions. Moreover, they exhibited high chemical stability in strongly acidic, basic, and oxidizing media. The foregoing notable attributes introduce the NOG fiber as a promising candidate both for the construction of graphene-based photoluminescent textiles and the development of a wide variety of optical applications.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-84940-0