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Comment on “Tunable Design of Structural Colors Produced by Pseudo‐1D Photonic Crystals of Graphene Oxide” and Thin‐Film Interference from Dried Graphene Oxide Film
Author(s) -
Hong SeungHo,
Song JangKun
Publication year - 2017
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201603125
Subject(s) - graphene , structural coloration , materials science , reflection (computer programming) , wafer , oxide , thin film , optoelectronics , photonic crystal , interference (communication) , substrate (aquarium) , dispersion (optics) , optics , nanotechnology , telecommunications , channel (broadcasting) , oceanography , physics , geology , computer science , metallurgy , programming language
The mechanism of the iridescent color reflection from dried thin graphene oxide (GO) film on Si wafer is clarified. Dissimilarly to the photonic crystalline reflection in aqueous GO dispersion, the color reflection in dried GO film originates from the thin film interference. The peak reflection can reach 23% by optimizing the GO thickness and the substrate.