Tuning the band gap of the graphene oxide-chloro aluminum phthalocyanine nanocomposite by reducing the rate of graphene oxide

aghdam, Afsaneh Hosseini; Araghi, Mohammad Esmaeil Azim; Vatanpour, Vahid

doi:10.1016/j.physe.2019.113636

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…Regarding carboxylic acid groups, previous reports indicate that the peak at about 1710 cm −1 disappears in the composite structure when Pc and GO are covalently attached. [ 39,40 ] However, we still observed this peak in the FT‐IR spectrum of MPc‐GO, as can be seen in Figure 2, indicating that the attachment of GO to MPc is not through covalent bonding. Also, our observation on a strong intensity drop at the H bonding region in case of MPc‐GO is another evidence of strong hydrogen bonding in the composite system.…”

Section: Resultsmentioning

confidence: 73%

Incorporation of graphene oxide to metal‐free phthalocyanine through hydrogen bonding for optoelectronic applications: An experimental and computational study

Yabaş

Şenadım‐Tüzemen

Maslow

et al. 2023

J of Physical Organic Chem

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This paper focuses on incorporation of graphene oxide (GO) to metal‐free phthalocyanine (MPc) through only hydrogen bonding and π‐π stacking. Briefly, Pc‐GO composites at various concentrations were prepared by self‐assembly method. The processing time was kept below 10 min to avoid covalent attachment and we aimed at answering the research question of what will happen if the conjugation is realized only through hydrogen bonding under extremely limited processing times. The as‐prepared MPc‐GO composites were characterized by Fourier transform infrared (FT‐IR), UV‐Vis, scanning electron microscope (SEM), and fluorescence analysis. We report that the interaction between MPc and GO could immediately be initiated upon mixing of corresponding solutions. Also, complete conjugation by hydrogen bonding and π‐π stacking could be reached even only in 5 min of sonication time. In addition, it was also determined that the prepared MPc‐GO composites are stable at room conditions and during dilution. Finally, the optoelectronic properties of MPc and MPc‐GO composites were also investigated experimentally and theoretically. Both experimental and theoretical results suggest that MPc‐GO composites exhibit improved optoelectronic properties as compared to MPc, even though the conjugation of GO to MPc was only via hydrogen bonding without covalent attachment.

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Section: Resultsmentioning

confidence: 73%

Incorporation of graphene oxide to metal‐free phthalocyanine through hydrogen bonding for optoelectronic applications: An experimental and computational study

Yabaş

Şenadım‐Tüzemen

Maslow

et al. 2023

J of Physical Organic Chem

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“…As shown in Figure 2 a, planar Au/(CNN)/Au and Au/(CNN/Au)/Au devices were used to evaluate the gas sensor. The electrodes were made up of an interdigital gold electrode that had a thickness of 30 µm and a width of 250 µm, as well as a distance of 250 µm among the electrode fingers and a SiO 2 /Si substrate using a CVD method and lithography [ 24 , 25 ]. The tests were performed for both substances, CNN and CNN/Au, for three types of organic vapors, ethanol, acetone, and methanol.…”

Section: Methodsmentioning

confidence: 99%

Sensing Properties of g-C3N4/Au Nanocomposite for Organic Vapor Detection

et al. 2023

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Alleviating the increasingly critical environmental pollution problems entails the sensing of volatile organic compounds (VOCs) as a hazardous factor for human health wherein the development of gas sensor platforms offers an efficient strategy to detect such noxious gases. Nanomaterials, particularly carbon-based nanocomposites, are desired sensing compounds for gas detection owing to their unique properties, namely a facile and affordable synthesis process, high surface area, great selectivity, and possibility of working at room temperature. To achieve that objective, g-C3N4 (graphitic carbon nitride) was prepared from urea deploying simple heating. The ensuing porous nanosheets of g-C3N4 were utilized as a substrate for loading Au nanoparticles, which were synthesized by the laser ablation method. g-C3N4 presented a sensing sensitivity toward organic vapors, namely methanol, ethanol, and acetone vapor gases, which were significantly augmented in the presence of Au nanoparticles. Specifically, the as-prepared nanocomposite performed well with regard to the sensing of methanol vapor gas and offers a unique strategy and highly promising sensing compound for electronic and electrochemical applications.

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Synthesis of graphene oxide and copper phthalocyanine, AC electrical characterization and tuning the bandgap of RGO-CuPc composite

Araghi

Omman

2020

J Mater Sci: Mater Electron

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Tuning the band gap of the graphene oxide-chloro aluminum phthalocyanine nanocomposite by reducing the rate of graphene oxide

Cited by 4 publications

References 31 publications

Incorporation of graphene oxide to metal‐free phthalocyanine through hydrogen bonding for optoelectronic applications: An experimental and computational study

Incorporation of graphene oxide to metal‐free phthalocyanine through hydrogen bonding for optoelectronic applications: An experimental and computational study

Sensing Properties of g-C3N4/Au Nanocomposite for Organic Vapor Detection

Synthesis of graphene oxide and copper phthalocyanine, AC electrical characterization and tuning the bandgap of RGO-CuPc composite

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