Furthermore, temperature modulation was conducted to decrease the graphene sheet defect coverage down to 7.2%.
The O-containing groups totally covered the graphene edges and a portion of the O atoms in the form of different groups (COH, COOH, C=O, C O C) was attached to C atoms in the inner-sheet defects randomly distributed in the sheets.
Direct sonication of graphite flakes in aqueous PTCA solutions produced high yield of single and few-layer graphene sheets with minimal basal plane defects as revealed by XPS, Raman and FTIR spectroscopy.
This paper presents experimental fatigue results for GFRP face sheet/balsa core sandwich beams with face sheet wrinkle defects, subjected to fully reversed in-plane fatigue loading.
The interlayer interaction between graphite layers has been investigated on perfect sheets [17 19] and on sheets with defects [20].
Constructing monolayer V-MoS3 sheet with defect fractions from 0.1%to1% 1 %, we obtained the elastic modulus varying with defect fractions and temperatures from 1 K to 600 K.
In the case of high quality graphene sheets without defects, impurities are induced by extrinsic sources.
However, the DPPC molecules, in gel phase, prefer to form a layer of continuous membrane covering the whole rGO sheet including defect holes.
During its synthesis, single-layer h-BN sheet has various defects such as vacancies and grain boundaries [1, 2].
The sensitivity of the electronic properties of a single graphene sheet to small defects in its 2-D crystal structure and chemical composition indicates a possibility of its application as a few-particle detector [2 4].
Ideally, in a free-standing graphene sheet without lattice defects and adsorbed impurities, charge carriers can exhibit a giant intrinsic mobility [2] and can travel for micrometers without scattering at room temperature.
