Simulation of light interference by a biaxial thin film

Jalal, Masoud Rezvani; Alamdarlo, Farzad Vaziri

doi:10.1016/j.ijleo.2016.10.096

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…Differences in mica thickness result in varying amounts of both mica background absorbance signal, as well as interference patterns resulting from the interaction of mica layers, BDBA/COF‐1 thin films, and/or graphene layers at the surface; these interference patterns render the portion of the spectrum above 2700 cm −1 unusable for characterization. [ 37–39 ] Details of the data processing, including removing these signals, are provided in the Supporting Information.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Crystallinity of Covalent Organic Frameworks Formed Under Physical Confinement by Exfoliated Graphene

Roys

O’Brien

Stucchi

et al. 2022

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The polymerization of 1,4‐benzenediboronic acid (BDBA) on mica to form a covalent organic framework (COF‐1) reveals a dramatic increase in crystallinity when physically confined by exfoliated graphene. COF‐1 domains formed under graphene confinement are highly geometric in shape and on the order of square micrometers in size, while outside of the exfoliated flakes, the COF‐1 does not exhibit long‐range mesoscale structural order, according to atomic force microscopy imaging. Micro‐Fourier transform infrared spectroscopy confirms the presence of COF‐1 both outside and underneath the exfoliated graphene flakes, and density functional theory calculations predict that higher mobility and self‐assembly are not causes of this higher degree of crystallinity for the confined COF‐1 domains. The most likely origin of the confined COF‐1's substantial increase in crystallinity is from enhanced dynamic covalent crystallization due to the water confined beneath the graphene flake.

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Section: Resultsmentioning

confidence: 99%