Optical property

Silver nanoparticles (Ag NPs) with a size of around 9 nm were fabricated and quantified through fluorescence quenching of rhodamine B (RhB). A series of solutions composed of RhB with various concentrations of Ag NPs ranging from 0.09 pM to 0.98 pM were prepared, and optical properties were investigated by absorption and fluorescence spectroscopies.

8p viengfa 28-10-2024 5 2   Download

We calculate the exciton radiative lifetime of spherical Indium Phosphide (InP) and Cadmium Selenide (CdSe) colloidal quantum dots. In experiments, InP and CdSe quantum dots can be coated by another semiconductor shell, organic ligands, or inorganic molecules.

7p viengfa 28-10-2024 3 1   Download

This study involved the deposition of NiO thin films onto Al2O3/glass substrates using RFmagnetron reactive sputtering. Then, the influence of heating temperatures on crystal structure, surface morphology, transmittance, and optical band gap of NiO films was investigated via different characterization techniques.

8p tuetuebinhan000 23-01-2025 5 2   Download

Carbon nanodots (CNDs) are the latest nano-sized carbon materials having unique properties such as biocompatible, highly photoluminescent, and nontoxic which are suitable for diverse applications including lighting, sensing, bioimaging, and biochemical analyzing.

15p viprimi 16-12-2024 4 1   Download

The focus of this study is to investigate its optical and conductive properties under different conditions of doping environments, temperature and polymerization conditions. Optical characterization technique such as UV-Visible spectroscopy is developed to carry out the investigation. The developed nanofibers have been demonstrated to possess optical and conductive properties to be dependent on doping variables. Study of these optical properties could prove very useful in the development of electrochromic devices and gas sensors.

103p runthenight07 01-03-2023 13 3   Download

Research purpose: to build an analytical model describing the dependence of the optical properties (absorption, dispersion, group velocity and group delay) of the three configuration energy level system Λ, Ξ and V according to the following parameters: control parameters (intensity, frequency, polarization and relative phase) of the laser fields.

25p prisonbreak123 21-05-2021 24 3   Download

This work aims to fabricate ferrite - (Ag, Au) hybrid nanomaterials with a SPR peak located in the near-infrared region, high magnetic/optical-to-thermal conversion and ability to contrast MRI images for both T1- and T2- weighted modes, which are strongly bactericidal and able to be applied in biomedicine.

30p capheviahe27 23-02-2021 26 3   Download

This article reports photovoltaic and optical properties of composite films 5,10,15,20-tetraphenylporphyrin (TPP) with the addition of phosphor’s complex oxide (Y0.9Eu0.05Bi0.05VO4) prepared by the spin-coating method on the surface of indium tin oxide (ITO) plates.

8p lucastanguyen 01-06-2020 11 2   Download

This paper describes the preparation, optical properties and the role of the concentration of rare earth ions (RE: Eu, Er, Tb, Yb) as active centers in the energy transfer of Y2O3: RE nanophosphors. The materials are prepared by the combustion method using urea or glycine. Nanoparticles can be prepared with sizes ranging from 5 to 100 nm and can be estimated by high resolution TEM. Optimization of Eu and Er content in these nanophosphors was reported. The effect of energy transfer between Tb and Eu and the up-conversion between Er and Yb were studied.

8p 12120609 01-06-2020 19 1   Download

Optical coherent transmission links utilize a fourdimensional (4d) signal space. We review the search for good modulation formats in 4d, as well the properties of these formats under the (subset of all possible) 4d rotations that occur during fiber transmission.

3p son248 23-04-2020 45 1   Download

The objectives of research contents of the thesis: (i) to synthesize and investigate the optical properties of gold nanostructures spherical, rod and core/shell SiO2/Au shape with controlled sizes; (ii) to try application of synthesized gold nanostructures in imaging and in photothermal.

24p xacxuoc4321 09-07-2019 28 4   Download

The objectives of the thesis: Manufacturing multifunctional nanoparticles including: Fe3O4 nanoparticles (magnetical properties) coated with biocompatible polymers, attaching drugs (Cur, Dox) and targeted folate factor (optical properties)) that are well dispersed in water, able to target the cancer.Experiment and evaluate the effect of the nanoparticles on cancer cell lines such as HT29; HeLa; HepG2 ... and on experimental animals.

27p xacxuoc4321 09-07-2019 69 5   Download

Objective of the thesis: Successfully fabricate Cu2O thin film having good crystal structure. Fabricate layers protecting Cu2O electrode from photocorrosion. Study the photocatalytic, electro-photocatalytic water splitting properties of the Cu2O electrode.

29p xacxuoc4321 08-07-2019 17 6   Download

2D nanomaterials such as graphene and transition metal dichal  cogenides (TMDCS) have shown outstanding potential in many fields such as fl exible electronics, sensing and optics due to their desirable physical and structural properties. High quality black phosphorus atomic layers by liquid phase exfoliation include Experimental Section; Supporting Information and Acknowledgements.

6p dangthaitrieu 11-05-2015 40 4   Download

Chlorite dismutase (EC 1.13.11.49), an enzyme capable of reducing chlorite to chloride while producing molecular oxygen, has been characterized using EPR and optical spectroscopy. The EPR spectrum of GR-1 chlorite dis-mutase shows two different high-spin ferric heme species, whichwe have designated
narrow(gx,y,z¼6.24, 5.42, 2.00) and
broad(gz,y,x ¼6.70, 5.02, 2.00).

7p research12 29-04-2013 42 3   Download

Biomolecule–nanoparticle (NP) [or quantum-dot (QD)] hybrid systems combine the recognition and biocatalytic properties of biomolecules with the unique electronic, optical, and catalytic features of NPs and yield com-posite materials with new functionalities.

8p inspiron33 23-03-2013 52 4   Download

Human serum albumin (HSA) is known for its exceptional ligand-binding capacity; indeed, its modular domain organization provides a variety of ligand-binding sites. Its flexible modular structure involves more than the immediate vicinity of the binding site(s), affecting the ligand-binding prop-erties of the whole protein.

10p viettel02 22-02-2013 27 3   Download

About a decade ago, the elastic properties of a single chromatin fiber and, subsequently, those of a single nucleosome started to be explored using optical and magnetic tweezers. These techniques have allowed direct mea-surements of several essential physical parameters of individual nucleo-somes and nucleosomal arrays, including the forces responsible for the maintenance of the structure of both the chromatin fiber and the individual nucleosomes

13p cosis54 05-01-2013 39 4   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Temperature dependent optical properties of single, hierarchically self-assembled GaAs/AlGaAs quantum dots

5p dauphong18 09-03-2012 33 3   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Influence of GaAs Substrate Orientation on InAs Quantum Dots: Surface Morphology, Critical Thickness, and Optical Properties

5p sting10 07-03-2012 50 4   Download