Single reactor deposition of silicon/tungsten oxide core–shell heterostructure nanowires with controllable structure and optical properties

RSC Advances ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 2346-2353 ◽  
Author(s):  
Su Kong Chong ◽  
Chang Fu Dee ◽  
Saadah Abdul Rahman
Keyword(s):  
Optical Properties ◽  
Optical Absorption ◽  
Tungsten Oxide ◽  
Core Shell ◽  
Shell Nanowires

Single reactor deposited crystalline Si/WO3 core–shell nanowires showed superior optical absorption and enhanced photocurrent conversion.

Regulating the electronic and optical properties of GaN/InN core/shell nanowires: A first-principles study

2020 ◽  
Vol 34 (25) ◽  
pp. 2050214 ◽  
Author(s):  
Chang Liu ◽  
Enling Li ◽  
Tuo Peng ◽  
Kaifei Bai ◽  
Yanpeng Zheng ◽  
...  
Keyword(s):  
Optical Properties ◽  
First Principles ◽  
Core Shell ◽  
First Principles Calculations ◽  
Electronic And Optical Properties ◽  
Gan Nanowires ◽  
The Core ◽  
Light Region ◽  
Calculation Results ◽  
Shell Nanowires

In this paper, electronic and optical properties of GaN/InN core/shell nanowires (CSNWs) have been theoretically investigated through the first principles calculations. The binding energy of In and N atoms on surface of six crystal planes along the [Formula: see text]-axis of GaN nanowires are all negative, which indicate that In and N atoms can be effectively deposited on the surface of GaN nanowires and preparing GaN/InN CSNWs is feasible theoretically. Calculation results of electronic properties indicate that the core/shell ratio and diameter of GaN/InN CSNWs have significant effect on the band structure, bandgap can be effectively adjusted when keeping the number of GaN layers unchanged and changing the number of InN layers. Moreover, with the increase in the number of InN layers, the absorption spectrum of GaN/InN CSNW has significant redshift and few weak absorption peaks appear in the visible light region.

Vertically aligned ZnO–ZnGa2O4 core–shell nanowires: from synthesis to optical properties

2012 ◽  
Vol 14 (4) ◽  
Author(s):  
Miao Zhong ◽  
Yanbo Li ◽  
Takero Tokizono ◽  
Maojun Zheng ◽  
Ichiro Yamada ◽  
...  
Keyword(s):  
Optical Properties ◽  
Core Shell ◽  
Vertically Aligned ◽  
Shell Nanowires

scholarly journals Optical absorption modulation by selective codoping of SiGe core-shell nanowires

2012 ◽  
Vol 112 (11) ◽  
pp. 114323 ◽  
Author(s):  
Michele Amato ◽  
Maurizia Palummo ◽  
Riccardo Rurali ◽  
Stefano Ossicini
Keyword(s):  
Optical Absorption ◽  
Core Shell ◽  
Shell Nanowires

Study on Optical Properties of Type-II SnO2/ZnS Core/Shell Nanowires

2011 ◽  
Vol 115 (15) ◽  
pp. 7225-7229 ◽  
Author(s):  
Xiuqing Meng ◽  
Fengmin Wu ◽  
Jingbo Li
Keyword(s):  
Optical Properties ◽  
Core Shell ◽  
Type Ii ◽  
Shell Nanowires

Formation of interface defects of ZnO/ZnS core-shell nanowires and its optical properties investigations

2019 ◽  
Vol 12 (4) ◽  
pp. 872-879
Author(s):  
赵海霞 ZHAO Hai-xia ◽  
方 铉 FANG Xuan ◽  
王颜彬 WANG Yan-bin ◽  
房 丹 FANG Dan ◽  
李永峰 LI Yong-feng ◽  
...  
Keyword(s):  
Optical Properties ◽  
Core Shell ◽  
Interface Defects ◽  
Shell Nanowires

scholarly journals Structural and optical properties of Zn0.9Mn0.1O/ZnO core-shell nanowires designed by pulsed laser deposition

2009 ◽  
Vol 106 (9) ◽  
pp. 093501 ◽  
Author(s):  
V. E. Kaydashev ◽  
E. M. Kaidashev ◽  
M. Peres ◽  
T. Monteiro ◽  
M. R. Correia ◽  
...  
Keyword(s):  
Optical Properties ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Core Shell ◽  
Structural And Optical Properties ◽  
Shell Nanowires

scholarly journals Fabrication and Characterization of ZnS/Diamond-Like Carbon Core-Shell Nanowires

2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Jung Han Kim ◽  
Seul Cham Kim ◽  
Do Hyun Kim ◽  
Kyu Hwan Oh ◽  
Woong-Ki Hong ◽  
...  
Keyword(s):  
Optical Properties ◽  
Coating Layer ◽  
Wavelength Region ◽  
Chemical Vapor ◽  
Diamond Like Carbon ◽  
Core Shell ◽  
Face Centered Cubic ◽  
Infrared Wavelength ◽  
Dlc Coating ◽  
Shell Nanowires

We fabricated ZnS/diamond-like carbon (DLC) core-shell heterostructure nanowire using a simple two-step process: the vapor-liquid-solid method combined with radio frequency plasma enhanced chemical vapor deposition (rf PECVD). As a core nanowire, ZnS nanowires with face-centered cubic structure were synthesized with a sputtered Au thin film, which exhibit a length and a diameter of ~10 μm and ~30–120 nm . After rf PECVD for DLC coating, The length and width of the dense ZnS/DLC core-shell nanowires were a range of ~10 μm  and 50–150 nm , respectively. In addition, ZnS/DLC core-shell nanowires were characterized with scanning transmission electron microscopy. From the results, the products have flat and uniform DLC coating layer on ZnS nanowire in spite of high residual stress induced by the high sp3fraction. To further understanding of the DLC coating layer, Raman spectroscopy was employed with ZnS/DLC core-shell nanowires, which reveals two Raman bands at 1550 cm−1(G peak) and 1330 cm−1(D peak). Finally, we investigated the optical properties from ultraviolet to infrared wavelength region using ultraviolet-visible (UV-Vis) and Fourier transform infrared (FT-IR) spectrometry. Related to optical properties, ZnS/DLC core-shell nanowires exhibit relatively lower absorbance and higher IR transmittance than that of ZnS nanowires.

Effects of substrate temperature on the growth, structural and optical properties of NiSi/SiC core–shell nanowires

2015 ◽  
Vol 343 ◽  
pp. 70-76 ◽  
Author(s):  
Najwa Binti Hamzan ◽  
Farah Nadiah Binti Nordin ◽  
Saadah Abdul Rahman ◽  
Nay Ming Huang ◽  
Boon Tong Goh
Keyword(s):  
Optical Properties ◽  
Substrate Temperature ◽  
Core Shell ◽  
Structural And Optical Properties ◽  
Shell Nanowires
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