Results 41 to 50 of about 2,292 (253)

High Open-Circuit Voltages in Lead-Halide Perovskite Solar Cells - Experiment, Theory and Open Questions [PDF]

Phil. Trans. R. Soc. A 377, 20180286 (2019), 2019
One of the most significant features of lead-halide perovskites are their ability to have comparably slow recombination despite the fact that these materials are mostly processed from solution at room temperature. The slow recombination allows achieving high open-circuit voltages when the lead-halide perovskite layers are used in solar cells.
arxiv   +1 more source

Role of polyhedron unit in distinct photodynamics of zero-dimensional organic-inorganic hybrid tin halide compounds [PDF]

J. Phys. Chem. Lett. 12, 5765-5773 (2021), 2021
The zero-dimensional (0D) metal halides comprise periodically distributed and isolated metal-halide polyhedra, which act as the smallest inorganic quantum systems and can accommodate quasi-localized Frenkel excitons. These excitons exhibit unique photophysics including broadband photon emission, huge Stokes shift, and long decay lifetime. The polyhedra
arxiv   +1 more source

Recent developments in chemical reactivity of N,N-dimethylenamino ketones as synthons for various heterocycles [PDF]

, 2017
The current review presents recent progress in the utility of N,N-dimethyl enaminones as building blocks for a diverse range of acyclic, carbocyclic, five- and six-membered heterocyclic a broad range of heterocyclic and fused heterocyclic derivatives ...
Abbas, Abdallah, Abdallah, Abdallah, Abdel-Khalik, Abdel-Khalik, Abdel-Khalik, Abdel-Megid, Abdel-Motaleb, Abdel-Motaleb, Abdelhamid, Abdelhamid, AbdelKhalik, Abu-Shanab, Abu-Shanab, Adams, Agamy, Agamy, Al-Awadi, Al-Awadi, Al-Awadi, Al-Enezi, Al-Etaibi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Mousawi, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Omran, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Saleh, Al-Shiekh, Al-Shiekh, Al-Shiekh, Al-Zaydi, Al-Zaydi, Al-Zaydi, Al-Zaydi, Al-Zaydi, Al-Zaydi, Al-Zaydi, Alinezhad, Alinezhad, Almazroa, Anwer, Behbehani, Cao, Dawood, Domínguez, El-Desoky, El-Dusouqui, El-Taweel, Eldebss, Elghamry, Farghaly, Figueiredo, Gaber, Gaber, Gaber, Gaber, Gaber, Gaber, Gad-Elkareem, Gad-Elkareem, Ghozlan, Ghozlan, Ghozlan, Gomha, Gomha, Gomha, Gomha, Gomha, Greenhill, Hassanien, Hassanien, Hassanien, Hernández, Ho, Ho, Ho, Hughes, Ibrahim, Igarashi, Ingham, Jiang, Kandeel, Kantevari, Kascheres, Katritzky, Katritzky, Kenawi, Kepe, Kepe, Kim, Kirschbaum, Liu, Lue, Macba, Macba, Makhseed, Manley, Martins, Michael, Mokhtar, Mousawi, Moustafa, Mukhanova, Murphy, Negri, Nishimura, Nishiyama, Pichon, Pigge, Pleier, Raghunadh, Rasmussen, Reidlinger, Sabnis, Saleh, Salomone, Schenone, Shaaban, Shankaraiah, Sherif, Toche, Tois, Trautwein, Verma, Wan, Wan, Wan, Wan, Wan, Wang, Witherington, Xiang, Zhao, Zhou, Šimůnek   +153 more
core   +1 more source

Synthesis of New 3-Heteroarylindoles as Potential Anticancer Agents

Molecules, 2016
2-(3-(1H-Indol-3-yl)-5-(p-tolyl)-4,5-dihydro-1H-pyrazol-1-yl)-4-substituted-5-(substituted diazenyl)thiazoles and 2-(1H-indol-3-yl)-9-substituted-4,7-disubstituted pyrido[3,2-e][1,2,4]triazolo[4,3-a]pyrimidin-5(7H)-ones were synthesized via reaction of ...
Abdou O. Abdelhamid, Sobhi M. Gomha, Nadia A. Abdelriheem, Saher M. Kandeel   +3 more
doaj   +1 more source

Impact of Metal ns2 Lone Pair on Luminescence Efficiency in Low-Dimensional Halide Perovskites [PDF]

Phys. Rev. Materials 3, 034604 (2019), 2019
Based on first-principles calculations, we show that chemically active metal ns2 lone pairs play an important role in exciton relaxation and dissociation in low-dimensional halide perovskites. We studied excited-state properties of several recently discovered luminescent all-inorganic and hybrid organic-inorganic zero-dimensional (0D) Sn and Pb halides.
arxiv   +1 more source

Hydrazonoyl Chlorides as Precursors for Synthesis of Novel Bis-Pyrrole Derivatives

Molecules, 2016
A convenient synthesis of some novel bis-pyrrole derivatives via hydrazonoyl halides is described. Antimicrobial evaluation of some selected examples of the synthesized products was carried out.
Nabila Abdelshafy Kheder
doaj   +1 more source

Ultrasound-assisted green synthesis and antimicrobial assessment of 1,3-thiazoles and 1,3,4-thiadiazines

Green Chemistry Letters and Reviews, 2021
In this article, we applied ultrasonic irradiation as an ecofriendly, green, efficient approach for the synthesis of a new 1,3-thiazoles and 1,3,4-thiadiazines under solvent-free conditions.
Sara N. Shabaan, Basma Saad Baaiu, Anhar Abdel-Aziem, Mohamed S. Abdel-Aziz   +3 more
doaj   +1 more source

Thermodynamic stabilization of mixed-halide perovskites against phase segregation [PDF]

Cell Reports Physical Science 1, 100120, 2020, 2020
Mixing iodide and bromide in halide perovskite semiconductors is an effective strategy to tune their bandgap, therefore mixed-halide perovskites hold great promise for color-tunable LEDs and tandem solar cells. However, the bandgap of mixed-halide perovskites is unstable under (sun-)light, since the halides segregate into domains of different bandgaps.
arxiv   +1 more source

Novel thiadiazole-thiazole hybrids: synthesis, molecular docking, and cytotoxicity evaluation against liver cancer cell lines

Journal of Taibah University for Science, 2022
One of the worst diseases, cancer claims millions of lives each year throughout the world, necessitating the creation of novel treatments. In this study, we designed a novel series of 1,3,4-thiadiazoles through the reaction of 2-(4-methyl-2-(2-(1 ...
Ghadah F. Aljohani, Tariq Z. Abolibda, Mohammad Alhilal, Jehan Y. Al-Humaidi, Suzan Alhilal, Hoda A. Ahmed, Sobhi M. Gomha   +6 more
doaj   +1 more source

Reaction of nitrilimines and nitrile oxides with hydrazines, hydrazones and oximes [PDF]

, 2005
This review article discusses the reaction of nitrilimines and nitrile oxides with hydrazines, hydrazones, and oximes. Three reaction modes were observed.
Awadallah, Adel M., Ferwanah, Abdel-Rahman S.   +1 more
core   +2 more sources