Enhanced field emission of p-type 3C-SiC nanowires with B dopants and sharp corners

Yang, Yang; Yang, Hao; Wei, Guodong; Wang, Lin; Shang, Minghui; Yang, Zuobao; Tang, Bin; Yang, Weiyou

doi:10.1039/c4tc00524d

Cited by 143 publications

(178 citation statements)

References 48 publications

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“…This agreed with the findings of a previous study that used the same type of graphene [63]. After mild oxidation with KMnO4, a prominent diffraction peak appeared at 2θ = 11.16°, reflecting the interlayer spacing of 0.79 nm (according to Bragg's law [64,65]). The small peak at 2θ = ~26° suggests the existence of unoxidized graphene [66].…”

Section: Xrd Analysissupporting

confidence: 81%

Functionalization of graphene using deep eutectic solvents

Hayyan¹,

Abo-Hamad²,

AlSaadi³

et al. 2016

Nano Online

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(http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.Deep eutectic solvents (DESs) have received attention in various applications because of their distinctive properties. In this work, DESs were used as functionalizing agents for graphene due to their potential to introduce new functional groups and cause other surface modifications. Eighteen different types of ammonium-and phosphonium-salt-based DESs were prepared and characterized by FTIR. The graphene was characterized by FTIR, STA, Raman spectroscopy, XRD, SEM, and TEM.Additional experiments were performed to study the dispersion behavior of the functionalized graphene in different solvents. The DESs exhibited both reduction and functionalization effects on DES-treated graphene. Dispersion stability was investigated and then characterized by UV-vis spectroscopy and zeta potential. DES-modified graphene can be used in many applications, such as drug delivery, wastewater treatment, catalysts, composite materials, nanofluids, and biosensors. To the best of our knowledge, this is the first investigation on the use of DESs for graphene functionalization.

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Section: Xrd Analysissupporting

confidence: 81%

Functionalization of graphene using deep eutectic solvents

Hayyan¹,

Abo-Hamad²,

AlSaadi³

et al. 2016

Nano Online

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show abstract

“…After reaction with BPh and CuCl, the obtained RGO-O-CuPc dispersed in DMAc shows an evident absorption band at ~680 nm in Fig. 4d, which can be assigned to the characteristic Qband absorption of metal-phthalocyanine [18], confirming the formation of copper phthalocyanine ring. Compared with the spectrum of pure CuPc, a distinct red-shift of the Q-band from 677.8 nm to 680.0 nm can be observed.…”

Section: Figure 4 Ftir Spectra (A) Of Go Go-o-cn Rgo-o-cn; Xrd Patmentioning

confidence: 75%

Fabrication of selectively functionalized-graphene reinforced copper phthalocyanine nanocomposites with low dielectric loss and high dielectric constant

Wang¹,

Wei²,

Liu³

2017

AIP Conference Proceedings

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Abstract.A novel kind of selectively functionalized-graphene reinforced copper phthalocyanine (RGO-O-CuPc) nanocomposites was successfully fabricated through a facile and effective three-step method, involving preferential surficial modification and reduction of graphene oxide (GO) sheets, and followed by incorporating with CuPc via in situ polymerization. The results of SEM, AFM, XPS, FTIR, XRD and UV-vis confirmed that GO was effectively surficial functionalized by a ring-open covalent reaction between amino in 3-aminophenoxyphthalonitrile (3-APN) and epoxy groups on the GO sheets, and partly reduced back to graphene under solvothermal conditions. And the RGO-O-CuPc was successfully fabricated by self-assembling of CuPc molecule on graphene sheets via in situ polymerization. As a consequence, the selective surface functionalization and solvothermal reduction of GO facilitated the improvement in the dielectric constant and AC conductivity, and the decrease in the dielectric loss of the graphene/CuPc nanocomposites.

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“…and 1632 cm -1 ， which are attributed to the stretching and bending vibrations of the surfacebound hydroxyl groups and surface adsorbed water molecules [34,35]. The peaks below 900 cm - [38].…”

Section: Photocatalyst Characterizationmentioning

confidence: 99%

Assessment of nitrogen–fluorine-codoped TiO2 under visible light for degradation of BPA: Implication for field remediation

Aker

Pelaez

et al. 2016

Journal of Photochemistry and Photobiology A: Chemistry

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Enhanced field emission of p-type 3C-SiC nanowires with B dopants and sharp corners

Abstract: We report the enhanced field emission of B-doped SiC nanowires with a low turn-on field and enhanced high-temperature stability.

Cited by 143 publications

References 48 publications

Functionalization of graphene using deep eutectic solvents

Functionalization of graphene using deep eutectic solvents

Fabrication of selectively functionalized-graphene reinforced copper phthalocyanine nanocomposites with low dielectric loss and high dielectric constant

Assessment of nitrogen–fluorine-codoped TiO2 under visible light for degradation of BPA: Implication for field remediation

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