Materials Literature
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A number of zinc oxide (ZnO) films are deposited on silicon substrates using the magnetron sputtering method. After undergoing thermal treatment under different conditions, those films exhibit hexagonal wurtzite structures and different photoluminescent characteristics. Besides the notable ultraviolet emission, which…
Mesostructured titanium dioxide materials were prepared by Evaporation-Induced Self-Assembly (EISA) method using titanium isopropoxide and a cationic surfactant. The titania phase could be tuned by simply varying the aging time. As the aging time increased, hierarchically structured mesoporous materials with mixed pha…
The transition of the structure and size of AuNPs at a pH value around 9.5, from slowly grown, well-faceted, large (≫19 nm), less uniform and near connected to fast grown, near symmetrical, small (<19 nm), more uniform and well-separated, is observed.
A novel thieno[1,4]benzothiazine donor has been developed for the first time to construct metal-free organic sensitizers, which exhibit more dramatically red-shifted absorptions than phenothiazine-based dyes.
Enhanced upconversion (UC) emission was experimentally demonstrated using gold double antenna nanoparticles coupled to nanoslits in gold films. The transmitted red emission from UC ytterbium and erbium co-doped sodium yttrium fluoride (NaYF4:Yb(3+)/Er(3+)) nanoparticles (UC NPs) at ∼665 nm (excited with a 980 nm diode…
Garment fit and still air between clothing layers affect heat transfer through the clothing and thus the thermal insulation. Wind and body movement decreases clothing insulation by causing ventilation inside the clothing and by compressing air layers. The objective was to find the optimum size combination of three-lay…
Restoration of sp 2 hybridization in a GO framework by the transfer of photo-excited electrons from CHL-a to GO resulted in the formation of a RGO/CHL-a nano hybrid, an efficient electron transfer catalyst for next generation bio-fuel cells.
Improved PCE (from 2.5 to 3.2%) and stability of SubPc/C 60 -based OPV device using an UV-ozone treated ZnO anode buffer.
A new facile method allows the manipulation of plasmon coupling in 2D assemblies of gold nanoparticles with a precision of nanometers.
The detection of trace amounts (<10 ppb) of heavy metals in aqueous solutions is described using 1,3,5-hexahydro-1,3,5-triazines (HTs) as chemical indicators and a low cost fluorimeter-based detection system. This method takes advantage of the inherent properties of HTs to coordinate strongly with metal ions in soluti…
Tetra-imidazole-appended p-phenylene-Cu(ii) doped nanofibrous membranes (IP-Cu-NMs) as portable chemoprobes were prepared using the electrospinning method. Fluorescence changes were observed upon dropping amino acids and proteins containing histidine residues onto the surface. IP-Cu-NMs prepared with 1.0 equivalent of…
We have synthesized three Metal-Organic Frameworks (MOFs) in which Zn metal ions form the secondary building unit, and 4,4'-sulfonyldibenzoic acid (SDB) serves as the ligand: [[Zn(DMF)(SDB)](DMF), 1, [Zn(3)(DMF)(3)(SDB)(3)](DMF), 2 and [Zn(3)(OH)(2)(SDB)(2)] (DMF)(2), 3, where DMF = dimethyl formamide]. Compound conta…
Sannakaisa Virtanen opened a general discussion of the paper by Mira Todorova: In view of the fact that there is a lot of data available for ZnO (as a semiconducting oxide), how “easy or difficult” is it to use the same methodology for other oxides, such as for instance iron oxides or chromium
We demonstrate that layered carbon black nanoparticles can be oxidatively peeled via the reaction with potassium permanganate in sulfuric acid.
In order to expand the application of bio-derived polymers it is imperative that the issues related to their poor gas barrier properties be addressed.
For the first time, the effects of iron-subgroup metal chlorides on polymer cord conversion to liquid and gaseous pyrolysis products have been studied.
Abstract—Here we present the design of a low loss top metal silicon (Si) hybrid dielectric-loaded plasmonic waveguide (TM-SiHDLW) and a compact, high performance optical resonator by numerical simulation based on finite element method. The waveguide adopted a thick (200 nm) top metal stripe structure to yield optimal…
ZnO nanoplates assembled by rod-like nanoparticles were synthesized by a simple reflux route without assistance of any additive or template.
The possibilities to employ phenol and oxime functionalities as fluoride recognition motif are investigated. The recognition involves H-bonding followed by deprotonation.
Novel 3D air-cathodes were constructed using stainless steel felt as the diffusion backing and current collector for performance improvement of MFC.