Results 111 to 120 of about 29,315 (256)

Defect engineering for highly efficient and stable perovskite top cells for Si tandems

Bulletin of the Korean Chemical Society, EarlyView.
Defect passivation in wide‐bandgap perovskites is essential for enabling high‐efficiency and stable perovskite/Si tandem solar cells. Bulk, surface, and buried‐interface passivation strategies focus on suppressing nonradiative recombination, ion migration, and halide segregation, thereby clarifying critical design principles for next‐generation tandem ...
Ju Yeong Hong, Young Seon Yoon, Jin Young Kim   +2 more
wiley   +1 more source

Combination of LC-MS and CE-MS Analysis for the Separation and the Identification of Phosphonic Acids

CHIMIA, 1999
The analysis of phosphonic acids in a spiked tap water has been investigated by capillary electrophoresis-mass spectrometry (CE-MS) and liquid chromatography-mass spectrometry (LC-MS) as part of the Third Official Proficiency Test of the ...
Jean-Philippe Mercier, Philippe Morin, Michel Dreux   +2 more
doaj  

Phosphonated superplasticizers synthesis: adsorption, dispersion and fluidification ability on calcium carbonate suspensions.

EPJ Web of Conferences, 2017
Superplasticizers are chemical admixtures used to fluidize cement pastes. Among them, polycarboxylate are comb-like copolymers with carboxylic acid and poly(ethylene glycol) side chains.
Tramaux A., Azéma N., David G., Negrell C., Poulesquen A., Haas J., Remond S.   +6 more
doaj   +1 more source

‘User-friendly’ primary phosphines and an arsine: synthesis and characterization of new air-stable ligands incorporating the ferrocenyl group [PDF]

, 2002
Reaction of FcCH₂CH₂P(O)(OH)₂ or FcCH₂P(O)(OH)(OEt) [Fc=Fe(η⁵-C₅H₄)(η⁵-C₅H₅)] with excess CH₂N₂ followed by reduction with Me₃SiCl–LiAlH₄ gives the air-stable primary phosphines FcCH₂CH₂PH₂ and the previously reported analogue FcCH₂PH₂ in high yields ...
Alley, Steven R., Henderson, William
core   +2 more sources

Poly(vinyl phosphonic acid) (PVPA)–BaFe12O19 Nanocomposite

Journal of Superconductivity and Novel Magnetism, 2012
We present a method for the fabrication of PVPA/BaFe12O19 nanocomposite by in-situ polymerization of vinyl phosphonic acid, VPA in the presence of synthesized BaFe12O19 NPs. Nanoparticles and the nanocomposite were analyzed by XRD, FTIR, TGA, SEM, TEM, VSM, and conductivity techniques for structural and physicochemical characteristics.
Durmus, Z., Kavas, H., Sozeri, H., Toprak, M. S., Aslan, A., Baykal, A.   +5 more
openaire   +3 more sources

Hole‐Selective Self‐Assembled Monolayers Overlaid on NiOx or PEDOT:PSS for Tin‐Based Perovskite Solar Cells – An Overview of Recent Characterization Methods

Chemistry – A European Journal, EarlyView.
Successfully applying self‐assembled monolayers with hole‐selectivity for lead‐free tin perovskite solar cells requires judicious investigation with appropriately powerful characterization methods, in addition to efforts in the development of new materials and processing.
Donghoon Song, Seung Wook Shin, Hui‐Ping Wu, Eric Wei‐Guang Diau   +3 more
wiley   +1 more source

Design of B,N Co‐Doped Carbon Spheres for Highly Effective Back Interface Engineering in Planar Carbon‐Based Perovskite Solar Cells

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The energy level mismatch of the perovskite/carbon back interface is decreased remarkably by using B, N co‐doped carbon sphere electrode in C‐PSCs, leading to effective charge carrier separation, extraction, and transport at the back interface. Combined with further buried modification using AMPA, the power conversion efficiency of the C‐PSCs is up to ...
Yujie Gao, Chang Xu, Xueze Liu, Chang Zhao, Wanran Zhang, Xuan Li, Yanli Zeng, Mingxing Wu   +7 more
wiley   +1 more source

USE OF ACID 2 -CHLOROETHYL- PHOSPHONE TO INDUCE PRODUCTION AND QUALITY OF MESQUITE GUM (Prosopis laevigata)

Tropical and Subtropical Agroecosystems, 2020
Background. Mezquite gum (Prosopis laevigata [Humb. & Bonpl. ex Willd.]) is similar to the gum Arabic; its production is associated to the stress condition of the tree. Objective. To induce and evaluate the gum production and quality. Methodology.
Arnoldo Flores-Hernández, Bernardo Murillo Amador, Francisco Javier Macías-Rodríguez, José Antonio Hernández-Herrera, Luis Manuel Valenzuela-Nuñez, Luis Guillermo Hernández-Montiel   +5 more
doaj  

Emerging Perovskite Solar Cells for Building‐Integrated Photovoltaic Applications

Information &Functional Materials, EarlyView.
In this review, we discuss technological approaches of perovskite solar cells that are highly compatible with the requirements of building‐integrated photovoltaic applications, including semi‐transparent, colorful, and flexible perovskite solar cells.
Yongke Liang, Jiawei Xu, Hanlin Guo, Binghan Li, Zhifang Shi   +4 more
wiley   +1 more source

Fungicides, bio-controllers and resistance inducers affect bioactive compounds and oxidative metabolism in bell pepper plants inoculated with Phytophthora capsici

Folia Horticulturae
The rational use of chemical fungicides in chilli pepper (Capsicum annuum L.) for controlling Phytophthora capsici Leo. should include molecules that promote induced systemic resistance in the plant.
Martínez-Damián María Teresa, Ojeda-Barrios Damaris Leopoldina, Cruz-Alvarez Oscar   +2 more
doaj   +1 more source