Results 11 to 20 of about 2,292,301 (311)

Small Molecules Derived from Thieno[3,4-c]pyrrole-4,6-dione (TPD) and Their Use in Solution Processed Organic Solar Cells

open access: yesMolecules, 2017
In this work, microwave synthesis, chemical, optical and electrochemical characterization of three small organic molecules, TPA-TPD, TPA-PT-TPD and TPA-TT-TPD with donor-acceptor structure and their use in organic photovoltaic cells are reported. For the
Cesar Garcias-Morales   +6 more
doaj   +1 more source

Evaluation of the optical switching characteristics of erbium-doped fibres for the development of a fibre Bragg grating sensor interrogator [PDF]

open access: yes, 2014
A polling topology that employs optical switching based on the properties of erbium-doped fibres (EDFs) is used to interrogate an array of FBGs. The properties of the EDF are investigated in its pumped and un-pumped states and the EDFs’ switching ...
Bhattacharyya, Debabrata   +7 more
core   +1 more source

Nonlinear optical crystalline nature bis (2,6-diaminopyridinium) hydrogen phthalate nitrate monohydrate (APPN): Development and its phase matching nature

open access: yesResults in Optics, 2021
Bis (2,6-Diaminopyridinium) single crystal hydrogen phthalate nitrate monohydrate (APPN) has been successfully cultivated via the growth method of slow evaporation solution. A single crystal X-ray diffraction analysis has confirmed the lattice parameters
P. Vivek   +7 more
doaj   +1 more source

Optical properties of lowest-energy carbon allotropes from the first-principles calculations [PDF]

open access: yes, 2017
We study the optical properties of lowest-energy carbon allotropes in the infrared, visible and ultra-violet ranges of light in the general gradient approximation of the density functional theory.
Saleev, Vladimir, Shipilova, Alexandra
core   +2 more sources

Nontoxic pyrite iron sulfide nanocrystals as second electron acceptor in PTB7:PC71BM-based organic photovoltaic cells

open access: yesBeilstein Journal of Nanotechnology, 2019
Herein, we report the synthesis of nontoxic pyrite iron sulfide (FeS2) nanocrystals (NCs) using a two-pot method. Moreover, we study the influence of these NCs incorporated into the PTB7:PC71BM active layer of bulk-heterojunction ternary organic ...
Olivia Amargós-Reyes   +7 more
doaj   +1 more source

Synthesis, Optical and Electrical Properties of ZnFe2O4 Nanocomposites

open access: yesNanomaterials and Nanotechnology, 2012
ZnFe2O4 nanocomposites have been prepared by a simple co‐precipitation method. The prepared samples were characterized by Scanning Electron Microscopy (SEM), Powder X‐ray Diffraction (XRD), Energy Disperse X‐ray Analysis (EDX), Transmission electron ...
G.S. Yashavanth Kumar   +4 more
doaj   +1 more source

Gallium ion implantation greatly reduces thermal conductivity and enhances electronic one of ZnO nanowires

open access: yesAIP Advances, 2014
The electrical and thermal conductivities are measured for individual zinc oxide (ZnO) nanowires with and without gallium ion (Ga+) implantation at room temperature.
Minggang Xia   +7 more
doaj   +1 more source

Ab initio analysis of MxLa1−xB6 as a solar radiation shielding material

open access: yesAIP Advances, 2022
The optical properties and solid solubility of La atoms substituted with another atom were comprehensively investigated using ab initio calculations to improve the optical properties of LaB6.
Satoshi Yoshio
doaj   +1 more source

Physical and Methodological Perspectives on the Optical Properties of Biological Samples: A Review

open access: yesPhotonics, 2021
The optical properties of biological systems can be measured by imaging and microscopy methodologies. The use of X-rays, γ-radiation and electron microscopy provides information about the contents and functions of the systems. The need to develop imaging
George I. Lambrou   +4 more
doaj   +1 more source

Electronic depth profiles with atomic layer resolution from resonant soft x-ray reflectivity [PDF]

open access: yes, 2015
The analysis of x-ray reflectivity data from artificial heterostructures usually relies on the homogeneity of optical properties of the constituent materials.
Alff, L.   +10 more
core   +2 more sources

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