Results 81 to 90 of about 281,084 (357)

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

Crystal structure of [Ag(NH3)3]2[Ag(NH3)2]2[SnF6]F2, a compound showing argentophilic interactions

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
Bis[triamminesilver(I)] bis[diamminesilver(I)] hexafluoridostannate(IV) difluoride, [Ag(NH3)3]2[Ag(NH3)2]2[SnF6]F2, was obtained in the form of colourless crystals from the reaction of CsAgSnF7 in anhydrous ammonia.
Florian Kraus   +2 more
doaj   +1 more source

Mixed-Metal Carbonate Fluorides as Deep-Ultraviolet Nonlinear Optical Materials.

open access: yesJournal of the American Chemical Society, 2017
Noncentrosymmetric mixed-metal carbonate fluorides are promising materials for deep-ultraviolet (DUV) nonlinear optical (NLO) applications. We report on the synthesis, characterization, structure-property relationships, and electronic structure ...
T. Tran   +3 more
semanticscholar   +1 more source

Self‐Poled Halide Perovskite Ruddlesden‐Popper Ferroelectric‐Photovoltaic Semiconductor Thin Films and Their Energy Harvesting Properties

open access: yesAdvanced Functional Materials, EarlyView.
Low‐dimensional halide perovskite thin films, (BA)2(MA)n‐1PbnBr3n+1 (n = 1, 2), exhibit both semiconducting and ferroelectric properties, enabling mechanical and light energy harvesting. Using Cr/Cr₂O₃ or PCBM as barrier layers ensures reproducible ferroelectricity.
Raja Sekhar Muddam   +8 more
wiley   +1 more source

Synthesis and Characterization of Barium Hexafluoridoosmates

open access: yesCrystals, 2017
Two barium hexafluoridoosmates, Ba(OsF6)2 and BaOsF6, were synthesized and were characterized for the first time using X-ray powder and single crystal diffraction, IR spectroscopy, as well as NMR spectroscopy in anhydrous hydrogen fluoride.
Sergei I. Ivlev   +5 more
doaj   +1 more source

Iridium-catalyzed Decarbonylative Coupling of Acyl Fluorides with Arenes and Heteroarenes via C-H Activation

open access: yesChemistry Letters, 2019
The first method for decarbonylative direct arylation using acyl fluorides is reported. This reaction proceeds, only when acyl fluorides are used, and other acyl halides cannot be used.
S. Sakurai   +2 more
semanticscholar   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Effect of a glass ionomer cement and a fluoride varnish on cross-sectional microhardness values of artificial occlusal caries: In vitro study

open access: yesIndian Journal of Dental Research, 2012
Context: Active white spot lesions (WSLs) are a great concern to clinicians. Aims: This in vitro experiment analyzed cross-sectional microhardness (CSMH) values of occlusal artificially induced active WSLs (control groups D/A, D/B and D/C) along with ...
MWM Souchois, R S Vieira
doaj   +1 more source

Fear of fluoride [PDF]

open access: yesBritish Dental Journal, 2017
Discusses how dental and medical scares have resulted in a "culture of fear" which has damaged patients and dentists. Forty years of pessimism have created a demoralised and risk-averse society. The reality of a steadily improving world demands a new attitude of rational optimism and a healthy scepticism about new scares.
openaire   +2 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

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