High-performance vertical field-effect transistors based on all-inorganic perovskite microplatelets

2020 ◽  
Vol 8 (36) ◽  
pp. 12632-12637 ◽  
Author(s):  
Jian Zhou ◽  
Lei Xie ◽  
Xiufeng Song ◽  
Ziming Wang ◽  
Chengxue Huo ◽  
...  
Keyword(s):  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Vertical Field ◽  
Halide Perovskites ◽  
Vertical Field Effect ◽  
Physical And Chemical ◽  
And Chemical Properties

All-inorganic halide perovskites have made significant achievements in electronics, optoelectronics, and other fields due to their unique physical and chemical properties.

High performance graphene embedded rubber composites

RSC Advances ◽  
2015 ◽  
Vol 5 (99) ◽  
pp. 81707-81712 ◽  
Author(s):  
Sung Ho Song ◽  
Jung Mo Kim ◽  
Kwang Hyun Park ◽  
Dong Ju Lee ◽  
O.-Seok Kwon ◽  
...  
Keyword(s):  
High Performance ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Rubber Composites ◽  
Synergy Effects ◽  
Physical And Chemical ◽  
And Chemical Properties

Nano-fillers have provided a big advantage for enhancing the performance of rubber composites through leading the synergy effects in the physical and chemical properties.

scholarly journals Research of the physical and chemical properties and methods of Red rice (food colour) determination in sausage products

2020 ◽  
Vol 5 (4) ◽  
pp. 23-28
Author(s):  
N. V. Rudometova ◽  
I. S. Kim
Keyword(s):  
Liquid Chromatography ◽  
High Performance ◽  
Chemical Properties ◽  
Carminic Acid ◽  
Physical And Chemical Properties ◽  
Red Rice ◽  
Chromatography Method ◽  
Food Colour ◽  
Physical And Chemical ◽  
And Chemical Properties

In Russia, in the production of meat and sausage products, the food colour, named as Red rice, is use. Red rice is obtain by the cultivation the strains of the Monascus fungus on various carbohydrate substrates, for example rice. That Red rice may contain the mycotoxin citrinin, but neither the purity of the food colour nor the safety profile are regulated. The aim of this work was to study the physical and chemical properties of Red rice and to develop method for its determination in sausage products. The experiments were carried out on model and commercial samples of sausages. The samples were analyzed using spectrophotometry and highefficiency planar and liquid chromatography. Spectrophotometric analysis revealed differences in solubility, coloring power, spectral characteristics, composition and ratio of pigments in commercial samples of Red rice. The extraction parameters of colouring substances from sausages model samples were determined. It has been established that Red rice is extracted with chloroform, acetone, ethanol and its aqueous solutions. Petroleum ether was proposed for degreasing sausages. Red rice from sausages was extracted with acetone because it did not extract synthetic colours and carminic acid. It was found, that 90% of Red rice is extracted from samples of sausages by double extraction with ultrasonic treatment with a power of 128 W. High performance thin layer chromatography method and high performance liquid chromatography method for the Red rice identification was proposed. The content of Red rice in the extracts was determined by spectrophotometric method. The developed method for the determination of Red rice was tested on commercial samples of sausage products.

scholarly journals Wafer-scale two-dimensional platinum monosulfide ultrathin film via metal sulfurization for high performance photoelectronics

2022 ◽  
Author(s):  
Jinbo Pang ◽  
Yanhao Wang ◽  
Xiaoxin Yang ◽  
Lei Zhang ◽  
Yufen Li ◽  
...  
Keyword(s):  
High Performance ◽  
Chemical Properties ◽  
Ultrathin Film ◽  
Physical And Chemical Properties ◽  
Two Dimensional ◽  
Wafer Scale ◽  
Platinum Group Minerals ◽  
Platinum Group ◽  
Physical And Chemical ◽  
And Chemical Properties

2D nonlayered materials have attracted enormous research interests due to their novel physical and chemical properties with the confined dimensions. Platinum sulfide as one of the most common platinum-group minerals...

Strong Fermi-Level Pinning at Metal Contacts to Halide Perovskites

2021 ◽  
Author(s):  
Kootak Hong ◽  
Ki Chang Kwon ◽  
Kyoung Soon Choi ◽  
Quyet Van Le ◽  
Seung Ju Kim ◽  
...  
Keyword(s):  
Optoelectronic Devices ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Metal Contacts ◽  
Fermi Level Pinning ◽  
Halide Perovskites ◽  
Physical And Chemical ◽  
Interfacial Charge ◽  
Shed Light ◽  
And Chemical Properties

The performance of halide perovskite-based electronic and optoelectronic devices is often related to interfacial charge transport. To shed light on the underlying physical and chemical properties of CH3NH3PbI3 (MAPbI3) in...

The Research on Preparation of a New Building Material with EMR and their Properties

2010 ◽  
Vol 163-167 ◽  
pp. 4575-4579 ◽  
Author(s):  
Yong Wang ◽  
Wen Hao Ye ◽  
Heng Bo Liu
Keyword(s):  
Building Material ◽  
High Performance ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Siliceous Material ◽  
Main Components ◽  
Physical And Chemical ◽  
And Chemical Properties

This article describes the physical and chemical properties of EMR and the preparation of a new building material with it. The results show that the main components of EMR are gypsum and quartz, supplemented by a small amount of cement, appropriate siliceous material and quicklime in EMR could be prepared high performance EMR autoclaved brick.

scholarly journals SELECTION OF MINERAL RAW MATERIAL FIELDS FOR GLAUCONITE SORPTION MATERIALS

2021 ◽  
Vol 2021 (1) ◽  
pp. 11-18
Author(s):  
D Xadjibaev ◽  
◽  
F Erkabaev
Keyword(s):  
Industrial Development ◽  
High Performance ◽  
Raw Materials ◽  
Thermal Analyses ◽  
Chemical Properties ◽  
Sorption Process ◽  
Raw Material ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

Natural minerals, such as bentonite, kaolinite, biotite, vermiculite, and glauconite, which have sufficiently high performance properties in the softening of industrial and waste water, softening and cleaning of heavy metals, are promising. To study the physical and chemical properties of glauconites from various deposits of the country, samples of glauconite mineral were brought from the Parkent, Bukhara, and Karakalpak mountain reserves, their physical and chemical properties were studied, compared with each other, and the optimal reserve was selected. The reserves of these deposits are sufficient and have the potential for industrial development. The purpose of this study is to compare samples of natural mineral reserves of glauconite and select the optimal deposit for raw materials. Methodology. Samples of glauconite minerals from the Parkent, Bukhara and Karakalpak mines were taken as the object of the study. Chemical, mineralogical, and thermal analyses were performed on the samples, and the fractional composition was determined. Scientific novelty. The main part of the mineral glauconite (50-55%) in the raw material is found in fractions of 0.08-0.125 mm. The most suitable raw material was the Parkent glauconite deposit, which has a relatively high content of potassium, which tends to exchange with other metals during the sorption process. The received data. Based on the conducted experiments, samples of glauconites from Parkent, Bukhara, and Karakalpak were subjected to chemical and mineralogical analyses. The maximum amount of the mineral glauconite was found in the fractions of the raw material (less than 0.125 mm). The most suitable deposit of raw materials for processing the mineral glauconite was selected and an environmentally friendly adsorbent was obtained.

scholarly journals Oxide and Organic–Inorganic Halide Perovskites with Plasmonics for Optoelectronic and Energy Applications: A Contributive Review

Catalysts ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1057
Author(s):  
Brahim Aïssa ◽  
Adnan Ali ◽  
Fedwa El-Mellouhi
Keyword(s):  
Power Conversion ◽  
Chemical Properties ◽  
Large Set ◽  
Physical And Chemical Properties ◽  
Energy Applications ◽  
Specific Performance ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Physical And Chemical ◽  
And Chemical Properties

The ascension of halide perovskites as outstanding materials for a wide variety of optoelectronic applications has been reported in recent years. They have shown significant potential for the next generation of photovoltaics in particular, with a power conversion efficiency of 25.6% already achieved. On the other hand, oxide perovskites have a longer history and are considered as key elements in many technological applications; they have been examined in depth and applied in various fields, owing to their exceptional variability in terms of compositions and structures, leading to a large set of unique physical and chemical properties. As of today, a sound correlation between these two important material families is still missing, and this contributive review aims to fill this gap. We report a detailed analysis of the main functions and properties of oxide and organic–inorganic halide perovskite, emphasizing existing relationships amongst the specific performance and the structures.

High Performance Aromatic Polyethersulfones

2020 ◽  
Vol 869 ◽  
pp. 21-27
Author(s):  
Zakhirat Kh. Sultigova ◽  
Zareta I. Inarkieva ◽  
Rima Ch. Bazheva ◽  
Arsen M. Kharaev ◽  
Madina Yalkhoroeva
Keyword(s):  
Fire Resistance ◽  
Frost Resistance ◽  
High Performance ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Chlorine Atoms ◽  
Unsaturated Bond ◽  
Initial Monomer ◽  
Physical And Chemical ◽  
And Chemical Properties

The modified aromatic polyethersulfones are synthesized. It is shown that the property of the obtained polymers depends on the ratio of the starting monomers. The presence in the initial monomer of two chlorine atoms in combination with an unsaturated bond provides the polyethersulfones based on it with high fire resistance and good physical and chemical properties, including frost resistance.

High-performance amorphous organic semiconductor-based vertical field-effect transistors and light-emitting transistors

Nanoscale ◽  
2020 ◽  
Vol 12 (35) ◽  
pp. 18371-18378 ◽  
Author(s):  
Haikuo Gao ◽  
Jinyu Liu ◽  
Zhengsheng Qin ◽  
Tianyu Wang ◽  
Can Gao ◽  
...  
Keyword(s):  
Organic Semiconductors ◽  
Field Effect ◽  
High Performance ◽  
Field Effect Transistors ◽  
Optoelectronic Devices ◽  
Light Emitting ◽  
Vertical Field ◽  
Organic Optoelectronic Devices ◽  
Organic Optoelectronic ◽  
Vertical Field Effect

Two kinds of vertical organic optoelectronic devices were constructed based on amorphous organic semiconductors and high device performances were achieved.

scholarly journals NANOPARTICLES OF NOBLE METALS ON THE SURFACE OF GRAPHENE FLAKES

2020 ◽  
Vol 17 (36) ◽  
pp. 1199-1211 ◽  
Author(s):  
Yulia V IONI
Keyword(s):  
Graphene Oxide ◽  
Noble Metals ◽  
Field Effect Transistors ◽  
Chemical Properties ◽  
Functional Materials ◽  
Physical And Chemical Properties ◽  
Graphene Flakes ◽  
Physical And Chemical ◽  
Nanoparticles Of Noble Metals ◽  
And Chemical Properties

Carbon is a spread element that has many different reaction combinations. Obtaining new composite materials based on nanoparticles is a very actual and perspective topic because nanoparticles possess unique properties. These properties are retained and even amplified when nanoparticles are located in various matrixes. Furthermore, nowadays, the creation of graphene-based composites and graphene-related structures is a promising area of synthesis of composite nanomaterials. Previous research has determined that graphene has a unique set of electrophysical, thermal, optical, and mechanical properties. In this study, the synthesis of nanocomposites representing nanoparticles of noble metals (Au, Pd, Rh) on the surface of graphene flakes were carried out, and the study of their composition, structure, physical and chemical properties, and possible applications in catalysis. The immobilization of nanoparticles on the surface of graphene oxide and graphene was developed, and the original method of synthesis of nanocomposite noble metal nanoparticles on the graphene flakes surface using supercritical isopropanol as a reduction agent for the transformation of graphene oxide into graphene was created. The study of physical and chemical properties of the obtained nanocomposites and results of the study of obtained nanocomposites as catalysts for model organic reactions of cross-coupling and hydroformylation showed that it is possible to create the graphene-based nanostructures as effective functional nanomaterials. Research on the synthesis of graphene compounds and its unique physical properties form a promising direction in the chemistry and physics of new inorganic functional materials. The resulting nanocomposites can be used in such branches as electrodes for LEDs and solar cells, field-effect transistors, supercapacitors, sensors, fuel cells.

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