Nanocomposites of metallophthalocyanines and conjugated Polymers

1997 ◽  
Vol 488 ◽  
Author(s):  
Shujian Yi ◽  
Samson A. Jenekhe
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Organic Solvents ◽  
Lewis Acid ◽  
Spin Coating ◽  
Conjugated Polymer ◽  
Optical Transparency ◽  
Composite Thin Films

AbstractNanocomposites of phenoxy-substituted vanadyl phthalocyanine with a t-conjugated polymer, poly(benzimidazobenzophenanthroline ladder), have been prepared from their Lewis acid complexes in organic solvents. The resulting composite thin films obtained by spin-coating have excellent optical transparency and interesting composition-dependent morphology and photoelectronic properties. Enhanced photoconductivity, compared to the components, was observed in some composites with discrete nanoscale metallophthalocyanine aggregates.

scholarly journals Solvent-dependent self-assembly and ordering in slow-drying drop-cast conjugated polymer films

2015 ◽  
Vol 3 (38) ◽  
pp. 9842-9848 ◽  
Author(s):  
Kui Zhao ◽  
Xinhong Yu ◽  
Ruipeng Li ◽  
Aram Amassian ◽  
Yanchun Han
Keyword(s):  
Thin Films ◽  
Conjugated Polymers ◽  
Charge Transport ◽  
Polymer Films ◽  
Self Assembly ◽  
Conjugated Polymer ◽  
Optoelectronic Properties ◽  
Microstructure Development ◽  
Mechanistic Understanding ◽  
Semiconducting Thin Films

The mechanistic understanding of the intrinsic molecular self-assembly of conjugated polymers is of immense importance to control the microstructure development in organic semiconducting thin films, with a meaningful impact on charge transport and optoelectronic properties.

The effect of organic solvents on the optical and morphological properties of metallophthalocyanines containing 3,5-bis(2′,3′,4′,5′,6′-pentafluorobenzyloxy)benzyloxy groups

2019 ◽  
Vol 23 (01n02) ◽  
pp. 136-141 ◽  
Author(s):  
Mukaddes Özçeşmeci ◽  
İdris Sorar ◽  
Esin Hamuryudan
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Surface Morphology ◽  
Organic Solvent ◽  
Organic Solvents ◽  
Spin Coating ◽  
Spin Coating Technique ◽  
Morphological Properties ◽  
Metal Phthalocyanines ◽  
Coating Technique

Thin films of metal phthalocyanines (M: Co, Zn, Ni) substituted with four 3,5-bis(2[Formula: see text],3[Formula: see text],4[Formula: see text],5[Formula: see text],6[Formula: see text]-pentafluorobenzyloxy)benzyloxy groups have been prepared by the spin-coating technique. Optical properties and surface morphology of the thin films of metallophthalocyanines have been investigated as a function of organic solvents of acetone, chloroform, tetrahydrofuran, dimethylformamide and dimethylsulfoxide. Results show that optical properties and surface morphology of the prepared films depend on the type of organic solvent used.

scholarly journals Study of Ruthenium Oxide, Manganese Oxide and Composite (Ru:Mn)O2 thin film Electrodes Assembled by Layer by Layer Spin Coating Method

2016 ◽  
Vol 13 (1) ◽  
pp. 43-49 ◽  
Author(s):  
P. S. Joshi ◽  
D. S. Sutrave
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Manganese Oxide ◽  
Spin Coating ◽  
Composite Films ◽  
Ruthenium Oxide ◽  
Layer By Layer ◽  
Composite Thin Films ◽  
Spin Coating Method ◽  
Coating Method

Ruthenium oxide, Manganese oxide and (Ru:Mn)O2 composite thin films have been prepared by 0.02M Ruthenium chloride and Manganese acetate solutions respectively on stainless steel substrates by sol-gel spin coating method. Layer by layer deposition of RuO2 and MnO2 was done for composite films. RuO2: MnO2 composite thin films have been demonstrated to be an excellent material for Supercapacitor application when evaluated with RuO2 and MnO2 thin film electrodes with respect to XRD, SEM, CV, CP and EIS studies. As a result, high specific capacitance of 515 F/g at 10 mV/s with excellent stability and long cycle life was obtained, where specific power and energy were as high as 15.38 Wh/kg and 4.06 KW/kg respectively with loading weight of 0.13 mg/cm2 .Composite films showed changes in structural and morphological features which was admiring for supercapacitor applications. The electrochemical impedance measurement was carried out in 0.1M KOH in the frequency range 10 to 105 Hz. From the analysis it can be concluded that mixed oxide composites have superior capacitive performance to single transition metal oxides as electrodes.

Novel electron-acceptor conjugated polymer materials based on poly(thienylene ethynylene) derivatives

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Kuan Liu ◽  
Yang Li ◽  
Mujie Yang
Keyword(s):  
Optical Properties ◽  
Conjugated Polymers ◽  
Ftir Spectroscopy ◽  
Band Gap ◽  
Organic Solvents ◽  
Electron Acceptor ◽  
Conjugated Polymer ◽  
Polymer Materials ◽  
Photovoltaic Applications

AbstractNovel electron-acceptor materials based on poly(thienylene ethynylene) derivatives (PTE-BT and PTE-DCNTB) were synthesized and characterized by FTIR spectroscopy. Their thermal, electrochemical and optical properties were investigated. The π-conjugated polymers are soluble in common organic solvents. The maximum UV-Vis absorptions of PTE-BT and PTE-DCNTB in solution are observed at 460 and 390 nm, respectively. The electrochemical band gap was found to be 1.89 eV for PTE-BT and 2.01 eV for PTE-DCNTB. Both polymers are promising as electron-acceptor materials for photovoltaic applications.

Proton Radiation Studies on Conjugated Polymer Thin Films

MRS Advances ◽  
2017 ◽  
Vol 2 (51) ◽  
pp. 2967-2972
Author(s):  
Harold O. Lee ◽  
Muhammed Hasib ◽  
Sam-Shajing Sun
Keyword(s):  
Thin Films ◽  
Conjugated Polymer ◽  
Radiation Effects ◽  
Potential Space ◽  
Proton Radiation ◽  
Proton Beam Irradiation ◽  
Composite Thin Films ◽  
Polymer Systems ◽  
Polymeric Thin Film ◽  
Before And After

ABSTRACTPolymeric thin film based electronic and optoelectronic materials and devices are attractive for potential space and certain radiation related applications due to their inherent features such as being light weight, flexible, biocompatible and environmental friendly, etc. Proton radiation is a major form of ionizing radiation in space, yet very few literature and data are available on proton radiation effects on conjugated polymer systems. In this study, UV-Vis absorption spectra of several conjugated polymers and/or their composite thin films were measured and compared right before and after a 200 MeV proton beam irradiation at different dosages, and the results revealed that proton radiation has very little or negligible impact up to 800 Rads on the optoelectronic properties of several polymers and their composite thin films.

scholarly journals Synthesis of PVDF/SBT composite thin films by spin coating technology and their ferroelectric properties

2016 ◽  
Vol 34 (3) ◽  
pp. 650-654 ◽  
Author(s):  
Changchun Chen ◽  
Pengfei Hu ◽  
Jun Yang ◽  
Zixuan Liu
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Ferroelectric Properties ◽  
Layered Perovskite ◽  
X Ray Diffraction ◽  
Coating Technology ◽  
Composite Thin Films ◽  
Saturated Polarization ◽  
Coating Method ◽  
Ft Ir

AbstractFerroelectric composite thin films of x-SBT/PVDF with different SBT content (weight ratios of SBT to PVDF, x = 0 %, 5 %, 10 %, 15 %, 20 %) were prepared by spin-coating method. The crystal structures of x-SBT/PVDF films were analyzed by X-ray diffraction (XRD) measurements and Fourier transform-infrared spectroscopy (FT-IR), respectively. Experimental results demonstrated that both α, β-phases PVDF and the layered perovskite SBT co-existed in the x-SBT/PVDF samples. With an increase of SBT content in the x-SBT/PVDF thin films, both the dielectric constant and the saturated polarization were also increased, compared with those of pure PVDF thin film. More importantly, when the SBT content in the x-SBT/PVDF thin films was larger than 15 %, the coercive field of x-SBT/PVDF thin films was also decreased.

Characteristic of conjugated polymer MEH-PPV thin films deposited by spin coating method

2015 ◽  
Author(s):  
N.E.A. Azhar ◽  
S.S. Shariffudin ◽  
I.H.H. Affendi ◽  
Salman A.H. Alrokayan ◽  
Haseeb A. Khan ◽  
...  
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Conjugated Polymer ◽  
Spin Coating Method ◽  
Coating Method
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