Results 91 to 100 of about 2,292 (253)

Synthesis of New Series of Pyrazoline, and Study their Kinetics and Reaction Mechanism [PDF]

open access: yes, 2019
A new series of novel pyrazoline compounds were synthesized by addition of thiosemicarbazide to the 2,6-dibenzylidenecyclohexanone (Chalcone) and its para substituted derivatives. This study was conducted for four purposes.
Hamad, Wali M.   +3 more
core   +2 more sources

Spinodal Decomposition-Enabled Halide Perovskite Double Heterostructure with Reduced Fröhlich Electron-Phonon Coupling [PDF]

open access: yesarXiv, 2016
Epitaxial III-V semiconductor heterostructures are key components in modern microelectronics, electro-optics and optoelectronics. With superior semiconducting properties, halide perovskite materials are rising as promising candidates for coherent heterostructure devices.
arxiv  

Counterdiffusion-in-gel growth of high optical and crystal quality MAPbX3 (MA = CH3NH3+, X = I-, Br-) lead-halide perovskite single crystals [PDF]

open access: yesarXiv, 2021
Halide perovskites are promising semiconductor materials for optoelectronics. One of their unique features is the synthesis, that could be performed by the crystallization from the solution. This method is fast, but practically couldn't be optimized due to the strongly non-equilibrium conditions of crystal growth.
arxiv  

New Routes to Pyridino[2,3-d]pyrimidin-4-one and Pyridino-[2,3-d]triazolino[4,5-a]pyrimidin-5-one Derivatives

open access: yesMolecules, 2003
2-Thioxopyrimidinyl-5-(N,N-dimethylamino)formamidine (5) and 1,3-diphenyltriazolo[3,4-d]pyrimidinyl-N,N-dimethylformamidine (14) were prepared by condensation of 6-amino-2-thioxo-1,3-dihydropyrimidin-4-one (2) and 7-amino-1,3-diphenyl-1,2,4-triazolo[4,3 ...
Tayseer A. Abdallah, Hamdi M. Hassneen
doaj   +1 more source

Synthesis, Antitumor Evaluation and Molecular Docking of New Morpholine Based Heterocycles

open access: yesMolecules, 2017
A series of new morpholinylchalcones was prepared and then used as building blocks for constructing a series of 7-morpholino-2-thioxo-2,3-dihydropyrido[2,3-d]pyrimidin-4(1H)-ones via their reaction with 6-aminothiouracil.
Zeinab A. Muhammad   +5 more
doaj   +1 more source

A study of singlet fission-halide perovskite interfaces [PDF]

open access: yesarXiv, 2021
A method for improving the efficiency of solar cells is combining a low-bandgap semiconductor with a singlet fission material (which converts one high energy singlet into two low energy triplets following photoexcitation). Here we present a study of the interface between singlet fission molecules and low-bandgap halide pervoskites.
arxiv  

Thiazole-Based Thiosemicarbazones: Synthesis, Cytotoxicity Evaluation and Molecular Docking Study

open access: yesDrug Design, Development and Therapy, 2021
Sobhi M Gomha,1,2 Hyam A Abdelhady,2 Doaa ZH Hassain,2 Aboubakr H Abdelmonsef,3 Mohamed El-Naggar,4 Mahmoud M Elaasser,5 Huda K Mahmoud2 1Chemistry Department, Faculty of Science, Islamic University in Almadinah Almonawara, Almadinah Almonawara, 42351 ...
Gomha SM   +6 more
doaj  

A Convenient Ultrasound-Promoted Synthesis of Some New Thiazole Derivatives Bearing a Coumarin Nucleus and Their Cytotoxic Activity

open access: yesMolecules, 2012
Successful implementation of ultrasound irradiation for the rapid synthesis of a novel series of 3-[1-(4-substituted-5-(aryldiazenyl)thiazol-2-yl)hydrazono)ethyl]-2<em>H</em>-chromen-2-ones<strong> 5a</strong>–<strong>h< ...
Sobhi M. Gomha, Khaled D. Khalil
doaj   +1 more source

Fundamental cause for superior optoelectronic properties in halide perovskites [PDF]

open access: yesarXiv, 2023
Halide perovskites have emerged as revolutionary materials for high performance photovoltaics and optoelectronics due to their superior optoelectronic properties. The physical origin for the superior optoelectronic properties of halide perovskites so far is still poorly understood. Here we propose and demonstrate a hypothesis that electron upconversion
arxiv  

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