Preparation and Characterization of Nanoscopic Organic Semiconductor of Oxovanadium Phthalocyanine

Wang, Yuan; Deng, Kai; Liu, Gui; Tang, Youchi; Zhou, Jinwei; Cai, Liangyuan; Qiu, Jiabai; Ren, Deyuan; Wang, Yianquao

doi:10.1006/jcis.1999.6132

Cited by 36 publications

(37 citation statements)

References 14 publications

(9 reference statements)

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“…The resulted solution was washed to neutral with water using an ultra-filter. A trace amount of sulfuric acid was removed by anion exchange resin (Wang et al 1999). The precipitate of the MPc nanoparticles was washed with water and acetone to remove any residual surfactants.…”

Section: Experimental and Theoretical Work Synthesis Of Zinc Phthalocmentioning

confidence: 99%

A study of the optical band gap of zinc phthalocyanine nanoparticles using UV–Vis spectroscopy and DFT function

Hamam

Alomari

2017

Appl Nanosci

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In the present work, we used the ultravioletVisible (UV-Vis) spectroscopy technique to find the optical band gap of zinc phthalocyanine nanoparticles (ZnPc-NP) experimentally. Moreover, we used a time-dependent density functional theory (TDDFT) to simulate the UV-Vis absorption spectrum of ZnPc molecule in gas and solution phases. The ZnPc-NP absorption spectrum shows a shift toward higher energies compared to the bulk ZnPc. The simulated UV-Vis and the experimental nanoparticle's spectrum were found to have a good agreement. The ZnPc energy band gap from the DFT calculations shows how it's possible to get wider range of energy band gap for the ZnPc. The ZnPc-NP's size and shape were examined using the transmission electron microscope (TEM).

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Section: Experimental and Theoretical Work Synthesis Of Zinc Phthalocmentioning

confidence: 99%

A study of the optical band gap of zinc phthalocyanine nanoparticles using UV–Vis spectroscopy and DFT function

Hamam

Alomari

2017

Appl Nanosci

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“…[2,5] Another solution to the low solubility of these attractive semiconductors is to make colloidal solutions of Pc nanoparticles. Several effective methods have been developed to prepare Pc nanoparticles, such as reprecipitation, [6,7] laser ablation, [8,9] ball milling, [10] microwave method, [11] and complexation-mediated solubilization. [3,12] The solvent-stabilized small photoconductive nanoparticles of metal phthalocyanines (MPcs) that we reported recently [13,14] at least have the following advantages: 1) The high surface-to-volume ratio of these nanoparticles will enhance the efficiency of photoinduced charge separation, since it is believed that only excitons generated near the surface of the particles significantly contribute to charge separation, whereas light-induced excitons near the center of the large particles are most probably deactivated before reaching the surface.…”

Section: Introductionmentioning

confidence: 99%

Solvent‐Stabilized Photoconductive Metal Phthalocyanine Nanoparticles: Preparation and Application in Single‐Layered Photoreceptors

Wang

Liang

2010

Advanced Materials

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This article features solvent-stabilized nanoparticles of photoconductive metal phthalocyanines (MPcs) with small particle sizes and narrow size distributions, which are tractable building blocks for photoelectric devices. The preparation and stabilization mechanism of 1,2-dichloroethane (DCE)-stabilized oxovanadium phthalocyanine (VOPc) and oxotitanium phthalocyanine (TiOPc) nanoparticles are discussed. It is found for the first time that the DCE-stabilized TiOPc and VOPc nanoparticles are positively charged with zeta potentials of about +66 mV, which is ascribed to the electron transfer from the nanoparticles to DCE molecules. The excellent xerographic properties of the single-layered photoreceptors based on TiOPc or VOPc nanoparticles and the charge transport mechanism of these photoreceptors are discussed. The strategy for further improving the xerographic properties of single-layered photoreceptors is proposed.

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“…The materials like pyrrole, benzaldehyde, methanol, chloroform, dimethylformamide (DMF), Cu(OAc) 2 , propionic acid, triethylene glycol monomethyl ether (TEG) and o-chloro and o-hydroxy benzaldehydes were purchased from Merck chemical company. The free base porphyrin TPPH 2 was prepared and purified by methods reported already 41 .…”

Section: Methodsmentioning

confidence: 99%

“…In recent years, studies on organic nanoparticles (NPs) such as dyes and porphyrin compounds have attracted more attentions toward this area [1][2][3][4][5][6][7] . The preparation and characterization of steady nano organic compounds (NPs) with low molecular weight have not been reported yet.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, efforts to prepare stable and self-standing pure organic NPs are highly demanded, due to this fact, some researches [2][3][4][5] took place to increase the appropriate properties of organic NPs. The porphyrin NPs were synthesized by reprecipitation technique [9][10] , in this method, a solution of organic compound is added to excess amount of poor solvent, with or without surfactant, and as a result the nano-sized particles are precipitated, the simplicity of this technique is a great advantage for preparing of the organic NPs [2][3][4][11][12] . A various derivatives of tetraphenylporphyrin and related metalloporphyrin complexes have received more attention due to their important role in biological systems, solar energy conversion, and catalytic activity [7][8][13][14][15] .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Oxidation of o-chloro and o-hydroxy benzyl alcohols catalyzed by copper (II) tetraphenylporphyrin nanoparticles synthesized by mixed solvent method

Rahimi¹,

Gholamrezapor²,

Naimi‐Jamal³

et al. 2012

CCL

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Tetraphenylporphyrin (TPP) and copper tetraphenylporphyrin (CuTPP) were synthesized and characterized by IR, UV-Vis, 1 HNMR and 13 CNMR. The CuTPP nanoparticles were synthesized by sonication and mixed solvent methods. These nanoparticles were characterized by AFM and SEM images and UV-Vis spectra. The catalytic activity of nanoparticles was investigated by oxidation of o-choloro and o-hydroxy benzyl alcohols in presence of molecular oxygen and isobutyraldehyde. The yields of oxidation of o-hydroxy benzyl alcohol by the two catalysts, CuTPP NPs and CuTPP, are 96.5% and ~ 2%, respectively. It is very obvious that the oxidation at the presence of CuTPP NPs catalyst is very high but selectivity for both reactants is 100%.

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Preparation and Characterization of Nanoscopic Organic Semiconductor of Oxovanadium Phthalocyanine

Cited by 36 publications

References 14 publications

A study of the optical band gap of zinc phthalocyanine nanoparticles using UV–Vis spectroscopy and DFT function

A study of the optical band gap of zinc phthalocyanine nanoparticles using UV–Vis spectroscopy and DFT function

Solvent‐Stabilized Photoconductive Metal Phthalocyanine Nanoparticles: Preparation and Application in Single‐Layered Photoreceptors

Oxidation of o-chloro and o-hydroxy benzyl alcohols catalyzed by copper (II) tetraphenylporphyrin nanoparticles synthesized by mixed solvent method

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