Phase and Texture of Solution-Processed Copper Phthalocyanine Thin Films Investigated by Two-Dimensional Grazing Incidence X-Ray Diffraction

Deng, Lulu; Wang, Kewei; Zhao, Cindy X.; Yan, Han; Britten, James F.; Xu, Gu

doi:10.3390/cryst1030112

Cited by 16 publications

(8 citation statements)

References 15 publications

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“…Thin films of active layers were deposited on Pedot:PSS-covered glass substrates and monocrystalline Silicon (001) substrates in identical conditions to those of solar cell devices. Bragg–Brentano (theta–theta) diffractograms and grazing incidence X-ray diffraction (GIXRD) 2D area images of active layers made from each PDI were recorded in identical conditions as those previously described for PTB7/PCBM blends (see ESI ) [ 43 , 44 ]. Unfortunately, no diffraction peaks could be detected using either technique, indicating that the PDI does not form crystalline domains in the active layer, and that it does not promote the formation of crystalline domains of polymer.…”

Section: Resultsmentioning

confidence: 99%

Diphenylphenoxy-Thiophene-PDI Dimers as Acceptors for OPV Applications with Open Circuit Voltage Approaching 1 Volt

et al. 2018

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Two new perylenediimides (PDIs) have been developed for use as electron acceptors in solution-processed bulk heterojunction solar cells. The compounds were designed to exhibit maximal solubility in organic solvents, and reduced aggregation in the solid state. In order to achieve this, diphenylphenoxy groups were used to functionalize a monomeric PDI core, and two PDI dimers were bridged with either one or two thiophene units. In photovoltaic devices prepared using PDI dimers and a monomer in conjunction with PTB7, it was found that the formation of crystalline domains in either the acceptor or donor was completely suppressed. Atomic force microscopy, X-ray diffraction, charge carrier mobility measurements and recombination kinetics studies all suggest that the lack of crystallinity in the active layer induces a significant drop in electron mobility. Significant surface recombination losses associated with a lack of segregation in the material were also identified as a significant loss mechanism. Finally, the monomeric PDI was found to have sub-optimum LUMO energy matching the cathode contact, thus limiting charge carrier extraction. Despite these setbacks, all PDIs produced high open circuit voltages, reaching almost 1 V in one particular case.

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Section: Resultsmentioning

confidence: 99%

Diphenylphenoxy-Thiophene-PDI Dimers as Acceptors for OPV Applications with Open Circuit Voltage Approaching 1 Volt

et al. 2018

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“…XPSPEAK 4.1 was used to differentiate peaks and resemble Co2p3/2 with a Shirley-type background and 80% Lorentzian-Gaussian function decomposition. At 780.9 and 786.1 eV, the binding energy of Co 2+ and the shake-up peak of the divalent cobalt was observed, respectively [33][34][35]; therefore, cobalt on the surface of Fe-Co/γ-Al 2 O 3 mainly exists as CoO [6,[36][37][38][39][40].…”

Section: Xps Characterizationmentioning

confidence: 95%

Advanced Heterogeneous Fenton Treatment of Coalbed Methane-Produced Water Containing Fracturing Fluid

Zhang

2018

Processes

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This study investigated the heterogeneous Fenton treatment to process coalbed methane-produced water containing fracturing fluid and chose the development region of coalbed methane in the Southern Qinshui Basin as a research area. We synthesized the catalyst of Fe-Co/γ-Al 2 O 3 by homogeneous precipitation method and characterized it by BET, XRD, SEM-EDS, FTIR, and XPS. Based on the degradation rate, we studied the influences of the heterogeneous Fenton method on the coalbed methane output water treatment process parameters, including initial pH, H 2 O 2 concentration, and the catalyst concentration. We also investigated the impacts of overall reaction kinetics of heterogeneous catalytic oxidation on coalbed methane-produced water containing fracturing fluid. Results showed that Fe-Co/γ-Al 2 O 3 as a Fenton catalyst has a good catalytic oxidation effect and can effectively process coalbed methane-produced water. This reaction also followed first-order kinetics. The optimal conditions were as follows: the initial pH of 3.5, a H 2 O 2 concentration of 40 mol L −1 , a catalyst concentration of 4 g/L, and an apparent reaction rate constant of 0.0172 min −1. Our results provided a basis to establish methods for treating coalbed methane-produced water.

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“…Many future efficient energy conversion and storage technologies depend on the development of new electroceramic materials with desired and tailored properties [1][2][3][4][5]. Materials based on MnCo 2 O 4 are interesting for a broad range of applications, from room temperature to high temperatures (800 • C).…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Electrical Properties of Fe,Cu Substituted (Co,Mn)3O4 Thin Films

et al. 2017

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Abstract:In this work, thin films (~1000 nm) of a pure MnCo 2 O 4 spinel together with its partially substituted derivatives (MnCo 1.6 Cu 0.2 Fe 0.2 O 4 , MnCo 1.6 Cu 0.4 O 4 , MnCo 1.6 Fe 0.4 O 4 ) were prepared by spray pyrolysis and were evaluated for electrical conductivity. Doping by Cu increases the electrical conductivity, whereas doping by Fe decreases the conductivity. For Cu containing samples, rapid grain growth occurs and these samples develop cracks due to a potentially too high thermal expansion coefficient mismatch to the support. Samples doped with both Cu and Fe show high electrical conductivity, normal grain growth and no cracks. By co-doping the Mn, Co spinel with both Cu and Fe, its properties can be tailored to reach a desired thermal expansion coefficient/electrical conductivity value.

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Phase and Texture of Solution-Processed Copper Phthalocyanine Thin Films Investigated by Two-Dimensional Grazing Incidence X-Ray Diffraction

Cited by 16 publications

References 15 publications

Diphenylphenoxy-Thiophene-PDI Dimers as Acceptors for OPV Applications with Open Circuit Voltage Approaching 1 Volt

Diphenylphenoxy-Thiophene-PDI Dimers as Acceptors for OPV Applications with Open Circuit Voltage Approaching 1 Volt

Advanced Heterogeneous Fenton Treatment of Coalbed Methane-Produced Water Containing Fracturing Fluid

Microstructure and Electrical Properties of Fe,Cu Substituted (Co,Mn)3O4 Thin Films

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