scholarly journals White-emissive tandem-type hybrid organic/polymer diodes with (033, 033) chromaticity coordinates

2009 ◽  
Vol 17 (23) ◽  
pp. 21205 ◽  
Author(s):  
Tzung-Fang Guo ◽  
Ten-Chin Wen ◽  
Yi-Shun Huang ◽  
Ming-Wei Lin ◽  
Chuan-Cheng Tsou ◽  
...  
Keyword(s):  
Organic Polymer ◽  
Chromaticity Coordinates

Colorimetric research of self-luminous objects in software and hardware environments by the method of multidimensional scales implementation

2020 ◽  
pp. 43-50
Author(s):  
Yauheniya N. Saukova
Keyword(s):  
Metrological Traceability ◽  
Point Of View ◽  
Intermediate Precision ◽  
Technical Vision ◽  
Wide Range ◽  
Chromaticity Coordinates ◽  
Unity Of Measurements ◽  
Software And Hardware ◽  
Luminous Objects ◽  
Reference Samples

It is shown that the issues of metrological traceability for extended self-luminous objects with a wide range of brightness have not yet been resolved, since the rank scales of embedded systems are used for processing digital images. For such scales, there is no “fixed” unit, which does not allow you to get reliable results and ensure the unity of measurements. An experiment is described to evaluate the accuracy of determining the intensity (coordinates) of the color of self-luminous objects. In terms of repeatability and intermediate precision compared to the reference measurement method, the color and chromaticity coordinates of self-luminous objects (reference samples) were determined by their multiple digital registration using technical vision systems. The possibilities of the developed methodology for colorimetric studies in hardware and software environments from the point of view of constructing a multidimensional conditional scale are determined.

Effect of Illumination on Organic Polymer Thin-Film Transistors

2003 ◽  
Vol 771 ◽  
Author(s):  
Michael C. Hamilton ◽  
Sandrine Martin ◽  
Jerzy Kanicki
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Drain Current ◽  
Charge Carriers ◽  
Electrical Performance ◽  
Organic Polymer ◽  
Light Illumination ◽  
Polymer Thin Film ◽  
Channel Region ◽  
White Light Illumination

AbstractWe have investigated the effects of white-light illumination on the electrical performance of organic polymer thin-film transistors (OP-TFTs). The OFF-state drain current is significantly increased, while the drain current in the strong accumulation regime is relatively unaffected. At the same time, the threshold voltage is decreased and the subthreshold slope is increased, while the field-effect mobility of the charge carriers is not affected. The observed effects are explained in terms of the photogeneration of free charge carriers in the channel region due to the absorbed photons.

Fabrication of acylsemicarbazide-based porous organic polymer for selective enrichment of glycopeptides

2017 ◽  
Vol 35 (7) ◽  
pp. 688
Author(s):  
Hongwei WANG ◽  
Zhongshan LIU ◽  
Xiaojun PENG ◽  
Junjie OU ◽  
Mingliang YE
Keyword(s):  
Organic Polymer ◽  
Selective Enrichment ◽  
Porous Organic Polymer

Coordination state of cobalt(II) ions in solution and on a sulphonated organic polymer

1979 ◽  
Vol 44 (8) ◽  
pp. 2330-2337 ◽  
Author(s):  
Jindřiška Maternová ◽  
Anastas A. Andreev ◽  
Dimitrii M. Shopov ◽  
Karel Setínek
Keyword(s):  
Acetic Acid ◽  
Coordination Sphere ◽  
Glacial Acetic Acid ◽  
Organic Polymer ◽  
Octahedral Complex ◽  
Coordination State ◽  
Tetrahedral Symmetry ◽  
Liquid Acid ◽  
Homogeneous Phase ◽  
Bromide Ion

It was found spectroscopically that cobalt(II) acetate dissolved in glacial acetic acid forms the octahedral complex [Co(OAc)2(HOAc)4] which in the presence of bromide ions gives the octahedral [Co(OAc)Br(HOAc)4] and tetrahedral bromo(acetate)cobalt(II) complexes with the higher number of Br- ions. When attached to an organic polymer cobalt(II) ions are bonded in the form of octahedral [Co(H2O)6]2+ cations which form with acetic acid similar complexes as in homogeneous phase and are able to coordinate one bromide ion. Drying the copolymer possessing octahedral hexaaquocobalt(II) cations leads to tetrahedral aquocomplexes which are solvated by gaseous acetic acid and converted into the acetate complexes with the liquid acid. The latter contain the acid in the inner coordination sphere and have tetrahedral symmetry.

Phosphorus Containing Porous Organic Polymers: Synthetic Techniques and Applications in Organic Synthesis and Catalysis

2021 ◽  
Author(s):  
Pramod Kumar ◽  
Animesh Das ◽  
Biplab Maji
Keyword(s):  
Organic Synthesis ◽  
Homogeneous Catalysis ◽  
Heterogeneous Catalysts ◽  
Organic Polymer ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Porous Organic Polymer ◽  
Phosphorus Containing

The phosphorous-containing porous organic polymer is a trending material for the synthesis of heterogeneous catalysts. Decades of investigations have established phosphines as versatile ligands in homogeneous catalysis. Recently, phosphine-based heterogeneous...

scholarly journals Research and application progress of lignin-based composite membrane

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Youjing Li ◽  
Fen Li ◽  
Ying Yang ◽  
Baocai Ge ◽  
Fanzhu Meng
Keyword(s):  
Environmental Pollution ◽  
Raw Materials ◽  
Waste Product ◽  
Functional Materials ◽  
Polymeric Materials ◽  
Composite Membranes ◽  
Organic Polymer ◽  
Future Research ◽  
Sustainable Resources ◽  
New Perspective

Abstract In view of the serious environmental pollution, which is the greatest problem the world is facing, and the continuous consumption of raw materials, it is imminent to search for green and sustainable resources. Lignin is an organic polymer that exists widely in nature, and if it can be transformed from traditional low-value waste product with low range of applications to functional materials with high application prospects, it can be of great significance to alleviate environmental pollution and shortage of fossil resources. One of the functional applications of lignin involves its use to fabricate composite with other polymeric materials, which can then be used to prepare membrane materials. This review summarizes the recent research and application progress of combining lignin with polypropylene, polyvinyl alcohol, starch, cellulose, chitosan, and other polymeric materials to prepare composite membranes; and summarizes the future development direction of lignin-based composite membranes. We hope this review may provide a new perspective to the understanding of lignin-based composite membranes and a useful reference for future research.

scholarly journals Daptomycin: A Novel Macrocyclic Antibiotic as a Chiral Selector in an Organic Polymer Monolithic Capillary for the Enantioselective Analysis of a Set of Pharmaceuticals

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3527
Author(s):  
Ali Fouad ◽  
Adel A. Marzouk ◽  
Montaser Sh. A. Shaykoon ◽  
Samy M. Ibrahim ◽  
Sobhy M. El-Adl ◽  
...  
Keyword(s):  
Glycidyl Methacrylate ◽  
Chiral Stationary Phase ◽  
Reversed Phase ◽  
Chiral Selector ◽  
Antifungal Drugs ◽  
Organic Polymer ◽  
Rp Hplc ◽  
Macrocyclic Antibiotic ◽  
Adrenergic Blockers ◽  
H1 Blockers

Daptomycin, a macrocyclic antibiotic, is here used as a new chiral selector in preparation of chiral stationary phase (CSP) in a recently prepared polymer monolithic capillary. The latter is prepared using the copolymerization of the monomers glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) in the presence of daptomycin in water. Under reversed phase conditions (RP), the prepared capillaries were tested for the enantioselective nanoliquid chromatographic separation of fifty of the racemic drugs of different pharmacological groups, such as adrenergic blockers, H1-blockers, NSAIDs, antifungal drugs, and others. Baseline separation was attained for many drugs under RP-HPLC. Daptomycin expands the horizon of chiral selectors in HPLC.

Anisotropic optical behavior of an amorphous organic polymer locally aligned by inkjet-printing

2021 ◽  
Vol 154 ◽  
pp. 106184
Author(s):  
Frida W. Lindberg ◽  
Kevin Synnatschke ◽  
Tobias Rödlmeier ◽  
Philipp Brenner ◽  
Maximilian Krings ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Organic Polymer ◽  
Optical Behavior
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