A comparative study of structural, electronic, and optical properties of thiolated gold clusters with icosahedral vs face-centered cubic cores

2021 ◽  
Vol 155 (9) ◽  
pp. 094304
Author(s):  
Maho Miyamoto ◽  
Tetsuya Taketsugu ◽  
Takeshi Iwasa
Keyword(s):  
Optical Properties ◽  
Comparative Study ◽  
Gold Clusters ◽  
Face Centered Cubic ◽  
Electronic And Optical Properties ◽  
Face Centered

A comparative study of structural, electronic and optical properties based on metal-doped methylammonium lead halidesviafirst-principles calculations

2019 ◽  
Vol 43 (24) ◽  
pp. 9453-9457 ◽  
Author(s):  
Diwen Liu ◽  
Huijuan Jing ◽  
Rongjian Sa ◽  
Kechen Wu
Keyword(s):  
Density Functional Theory ◽  
Optical Properties ◽  
Solar Cells ◽  
Comparative Study ◽  
Density Functional ◽  
Perovskite Solar Cells ◽  
Functional Theory ◽  
Electronic And Optical Properties ◽  
Metal Doped

To reduce the toxicity of Pb in perovskite solar cells, the structural stabilities, and electronic and optical properties of the mixed perovskites MAPb0.75B0.25I3(B = Mg, Ca, Sr, and Ba) were predicted using density functional theory.

Single Layer vs Bilayer Graphene: A Comparative Study of the Effects of Oxygen Plasma Treatment on Their Electronic and Optical Properties

2011 ◽  
Vol 115 (33) ◽  
pp. 16619-16624 ◽  
Author(s):  
Amirhasan Nourbakhsh ◽  
Mirco Cantoro ◽  
Alexander V. Klekachev ◽  
Geoffrey Pourtois ◽  
Tom Vosch ◽  
...  
Keyword(s):  
Optical Properties ◽  
Comparative Study ◽  
Plasma Treatment ◽  
Oxygen Plasma ◽  
Single Layer ◽  
Bilayer Graphene ◽  
Oxygen Plasma Treatment ◽  
Electronic And Optical Properties

Optical properties and carrier dynamics of ensembles of InP nanowires grown on non-single-crystal platforms

2009 ◽  
Vol 1178 ◽  
Author(s):  
Takehiro Onishi ◽  
Andrew J. Lohn ◽  
Nobuhiko P. Kobayashi
Keyword(s):  
Optical Properties ◽  
Single Crystal ◽  
Quartz Substrate ◽  
Chemical Vapor ◽  
Blue Shift ◽  
Growth Direction ◽  
Longitudinal Optical ◽  
Face Centered Cubic ◽  
Single Crystal Surfaces ◽  
Face Centered

AbstractOptically active InP nanowires were grown on a quartz substrate covered with a layer (100 nm) of hydrogenated amorphous silicon (a-Si:H) by metalorganic chemical vapor deposition (MOCVD), demonstrating that single-crystal semiconductor nanowires can be formed on non-single-crystal surfaces. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy, cathodoluminescence (CL), and photoluminescence (PL) were used to characterize the structural and optical properties of the nanowires. The nanowires on a-Si:H grew in random directions with high density. The XRD suggests that nanowires having either hexagonal-close-packed or face-centered cubic lattices co-exist. The Raman spectrum shows peaks associated with transverse optical (TO) and longitudinal optical (LO) branches of InP. The CL intensity does not vary signi?cantly along the growth direction and appears to be originated from the entire structure of the nanowire when probed at various positions. The CL data suggests that recombination is slow enough to allow the carriers to diffuse the complete length of the nanowires (˜2 m in length) before recombining. The PL spectrum suggested the nanowire had a part that contributes to the observed blue shift while the other part had nearly bulk feature in their structure.

A comparative study on the electronic and optical properties of Sb2Se3 thin film

2017 ◽  
Vol 51 (12) ◽  
pp. 1615-1624 ◽  
Author(s):  
M. Kamruzzaman ◽  
Chaoping Liu ◽  
A. K. M. Farid Ul Islam ◽  
J. A. Zapien
Keyword(s):  
Thin Film ◽  
Optical Properties ◽  
Comparative Study ◽  
Electronic And Optical Properties

scholarly journals Hydrothermal Synthesis and Optical Properties of Undoped and \(\text{Eu}^{3+}\)-doped Zinc Stannate Nanocrystals

2016 ◽  
Vol 25 (4) ◽  
pp. 327 ◽  
Author(s):  
Nguyen Duy Thien ◽  
Nguyen Ngoc Tu ◽  
Ngo Nhu Viet ◽  
Nguyen Duy Phuong ◽  
Le Van Vu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Emission Spectra ◽  
Molar Ratio ◽  
Face Centered Cubic ◽  
Excitation Spectra ◽  
Cubic Crystal ◽  
Zinc Stannate ◽  
Scattering Spectra ◽  
Hydrothermal Approach ◽  
Face Centered

Abstract. In this work we report a hydrothermal approach for synthesis of zinc stannate (Zn2SnO4)nanocrystals. Our research focused on the effect of the molar ratio of initial chemicals, reaction temperature and reaction duration on the phase composition and the fluorescence properties.Structural and optical properties of the final products were investigated in detail. X-ray diffractionanalysis indicated that the Zn2SnO4 nanocrystals possess face-centered cubic crystal structure.Raman scattering spectra exhibit two characteristic vibrational modes of Zn2SnO4 crystals. Optical band gap of Eu3+-doped Zn2SnO4 nanocrystals obviously depends on Eu3+content. Theroom-temperature emission spectra of the undoped Zn2SnO4 nanocrystals show two broad bands,while the photoluminescence spectra of Eu3+-doped Zn2SnO4 nanocrystals exhibit the emissionpeaks related to the radiative intra-configurational f-f tr ansitions of Eu3+ions. The absorptiontransitions within Eu3+ions were observed both in the photoluminescence excitation spectra andin the diffuse reflection spectra.

Comparative study of electronic and optical properties of graphene and germanene: DFT study

Optik ◽  
2018 ◽  
Vol 158 ◽  
pp. 693-698 ◽  
Author(s):  
M.L. Ould NE ◽  
A.G. El hachimi ◽  
M. Boujnah ◽  
A. Benyoussef ◽  
A. El Kenz
Keyword(s):  
Optical Properties ◽  
Comparative Study ◽  
Dft Study ◽  
Electronic And Optical Properties

Optical Properties of Three-Dimensional Photonic Crystal with Face-Centered-Cubic Structure

2013 ◽  
Vol 821-822 ◽  
pp. 622-625 ◽  
Author(s):  
Hong Bo Zhang ◽  
Xiao Yan Liu ◽  
Wei Dong Yu
Keyword(s):  
Optical Properties ◽  
Photonic Crystal ◽  
Incident Angle ◽  
Three Dimensional ◽  
Structural Color ◽  
Face Centered Cubic ◽  
Microsphere Size ◽  
Cubic Structure ◽  
Face Centered ◽  
Fcc Structure

Based on transfer matrix method (TMM), the model and calculation of 3-D Photonic Crystal with Face-Centered-Cubic (FCC) Structure are presented. The microsphere size, the crystal stack thickness and the incident angle have an influence on optical properties of 3-D Photonic Crystal. With the microsphere size increasing, the wavelength corresponding to the positions of PBG becomes larger causing structural color changing from blue to red. The reflectivity becomes higher and PBG is narrower when the crystal stack thickness increases. With the incident angle becoming larger, the reflectivity does not change significantly, while the wavelength corresponding to the positions of PBG becomes shorter causing structural color changing from red to blue.

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