Observation of scattering parameters for bandgap-tuned graphene oxide under 488 nm illumination

Juyeong Oh, Hyong Seo Yoon, Jae hoon Ji, Sun Jun Kim, Byeongho Park, Su Chan Lee, Shinill Kang, Yongshik Lee, Seong Chan Jun

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Excellent high frequency and optoelectronic material properties of graphene oxide have been highlighted recently. Our study reveals interactions between high frequency up to 4 GHz and 488 nm light wave in the thermally tunable band-gap of annealed graphene oxide to investigate the effect of 488 nm wave induces additional carriers. Graphene oxide is a strong candidate for studying high frequency and optical interactions due to excellent scattering parametric characteristics being a few nano-meters thick and having outstanding optical characteristics with a variable band-gap. Measurement results of the high frequency device composed of annealed graphene oxide with optical illumination demonstrate that the photon-assisted carriers affect variation of scattering parameters. The signals were changed due to π–π* interaction and excitons affected by varied band gap of graphene oxide and illumination intensity, respectively. The graphene oxide interconnector is a promising candidate for a controllable high frequency device. This initial study not only gives further insight into the interaction of high frequency and 488 nm wave with graphene oxide reduced to different levels, but also reveals a way to control the scattering by optic power.

Original languageEnglish
Pages (from-to)453-460
Number of pages8
JournalCarbon
Volume109
DOIs
Publication statusPublished - 2016 Nov 1

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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