Successive Layer-by-Layer Strategy for Multi-Shell Epitaxial Growth: Shell Thickness and Doping Position Dependence in Upconverting Optical Properties

2012 ◽  
Vol 25 (1) ◽  
pp. 106-112 ◽  
Author(s):  
Xiaomin Li ◽  
Dengke Shen ◽  
Jianping Yang ◽  
Chi Yao ◽  
Renchao Che ◽  
...  
Keyword(s):  
Optical Properties ◽  
Epitaxial Growth ◽  
Shell Thickness ◽  
Layer By Layer ◽  
Successive Layer ◽  
Position Dependence ◽  
Doping Position

scholarly journals Numerical Study on the Surface Plasmon Resonance Tunability of Spherical and Non-Spherical Core-Shell Dimer Nanostructures

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1728
Author(s):  
Joshua Fernandes ◽  
Sangmo Kang
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Surface Plasmon Resonance ◽  
Aspect Ratio ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Shell Thickness ◽  
Numerical Study ◽  
Field Enhancement ◽  
Core Shell

The near-field enhancement and localized surface plasmon resonance (LSPR) on the core-shell noble metal nanostructure surfaces are widely studied for various biomedical applications. However, the study of the optical properties of new plasmonic non-spherical nanostructures is less explored. This numerical study quantifies the optical properties of spherical and non-spherical (prolate and oblate) dimer nanostructures by introducing finite element modelling in COMSOL Multiphysics. The surface plasmon resonance peaks of gold nanostructures should be understood and controlled for use in biological applications such as photothermal therapy and drug delivery. In this study, we find that non-spherical prolate and oblate gold dimers give excellent tunability in a wide range of biological windows. The electromagnetic field enhancement and surface plasmon resonance peak can be tuned by varying the aspect ratio of non-spherical nanostructures, the refractive index of the surrounding medium, shell thickness, and the distance of separation between nanostructures. The absorption spectra exhibit considerably greater dependency on the aspect ratio and refractive index than the shell thickness and separation distance. These results may be essential for applying the spherical and non-spherical nanostructures to various absorption-based applications.

Structural and optical properties of layer-by-layer solution deposited Cu2SnS3 films

2014 ◽  
Vol 25 (9) ◽  
pp. 3687-3694 ◽  
Author(s):  
Devendra Tiwari ◽  
Tapas K. Chaudhuri ◽  
T. Shripathi ◽  
U. Deshpande ◽  
V. G. Sathe
Keyword(s):  
Optical Properties ◽  
Layer By Layer ◽  
Structural And Optical Properties ◽  
Layer Solution

Epitaxial growth of silicon on silicon implanted with iron ions and optical properties of resulting structures

2008 ◽  
Vol 53 (2) ◽  
pp. 224-230 ◽  
Author(s):  
G. G. Galkin ◽  
D. L. Goroshko ◽  
E. A. Chusovitin ◽  
V. O. Polyarnyi ◽  
R. M. Bayazitov ◽  
...  
Keyword(s):  
Optical Properties ◽  
Epitaxial Growth ◽  
Iron Ions

Controllable epitaxial growth of GeSe2 nanostructures and nonlinear optical properties

2021 ◽  
Author(s):  
Weiqi Gao ◽  
Guoliang Zhou ◽  
Jin Li ◽  
Tao Chen ◽  
Bo Li ◽  
...  
Keyword(s):  
Optical Properties ◽  
Epitaxial Growth ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties

Epitaxial Growth of Copper, Silver and Gold on a Semiconducting Layered Material: Tungsten Disulfide

1987 ◽  
Vol 102 ◽  
Author(s):  
D. L. Doering ◽  
F. S. Ohuchi ◽  
W. Jaegermann ◽  
B. A. Parkinson
Keyword(s):  
Thin Films ◽  
Epitaxial Growth ◽  
Lattice Mismatch ◽  
Layered Material ◽  
Tungsten Disulfide ◽  
Layer By Layer ◽  
Metal Contacts ◽  
Layered Semiconductor ◽  
Large Lattice ◽  
Large Lattice Mismatch

ABSTRACTThe growth of copper, silver and gold thin films on tungsten disulfide has been examined as a model of metal contacts on a layered semiconductor. All three metals were found to grow epitaxially on the WS2. However, Cu appears to form a discontinuous film while Au and Ag grow layer by layer. Such epitaxial growth is somewhat surprising since there is a large lattice mismatch between the metals and the WS2.

scholarly journals Formation and Characterization ofTiO2/CNTNanomaterials Dried under Supergravity Conditions

2009 ◽  
Vol 2009 ◽  
pp. 1-5 ◽  
Author(s):  
Minerva Vargas ◽  
Marina E. Rincón ◽  
Eduardo Ramos
Keyword(s):  
Optical Properties ◽  
Chemical Method ◽  
Bond Number ◽  
Red Shift ◽  
Gravity Force ◽  
Bilayer Film ◽  
Water Molecules ◽  
Layer By Layer ◽  
Terrestrial Gravity ◽  
Layer Solution

The elaboration of bilayerTiO2/CNTfilms dried under terrestrial gravity conditions (g) and on a centrifuge with 1.3gand 7gis reported. The changes in microstructure and thickness of these coatings under supergravity environment cause a red-shift tendency in the optical properties at increasing values of acceleration. Experiments of a drop under enhanced gravity force in the range of 3.7 < Bo (bond number) < 51.5 suggest the incomplete elimination of surfactant-water molecules in theTiO2/CNTbilayer film. Increasing acceleration up to 14gwill widen the optical differences found, proving the layer-by-layer solution-chemical method in combination with these drying protocols, an alternative to produce thickness-sensitive solar-selective absorbing coatings.

Synthesis, structural revolutions, and optical properties of SnO2 hollow microspheres with manageable shell thickness

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xin Zhang ◽  
Xueyan Jia ◽  
Zihang Shi ◽  
Bolun Song ◽  
Yongan Niu
Keyword(s):  
Optical Properties ◽  
Calcination Temperature ◽  
Shell Thickness ◽  
Hollow Microspheres ◽  
One Step ◽  
Sio2 Microspheres

SnO2 hollow (H-SnO2) microspheres were successfully prepared via a facile one-step synthesis using SiO2 microspheres as templates and NaOH as reactive etching agent. To determine the calcination temperature, the thermal...

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