Tuning Optical Properties of Two-Dimensional Ordered Arrays of Silica/Gold and Silver Core/Shell Structured Nanoparticles in Near-Infrared Region

2012 ◽  
Vol 51 (4S) ◽  
pp. 04DH04 ◽  
Author(s):  
Kosuke Sugawa ◽  
Tatsuya Sakai ◽  
Daido Tanaka ◽  
Tsuyoshi Akiyama
Keyword(s):  
Optical Properties ◽  
Near Infrared ◽  
Infrared Region ◽  
Core Shell ◽  
Two Dimensional ◽  
Ordered Arrays ◽  
Near Infrared Region ◽  
Silver Core

Investigation of the plasmon resonance of core-shell nanoparticle in the near-infrared region

2019 ◽  
Vol 33 (18) ◽  
pp. 2462-2475 ◽  
Author(s):  
Aijaz Ali ◽  
Qaisar Abbas Naqvi ◽  
Muhammad Abuzar Baqir
Keyword(s):  
Plasmon Resonance ◽  
Near Infrared ◽  
Infrared Region ◽  
Core Shell ◽  
Near Infrared Region

Synthesis, Characterization, and Optical Properties of Near-Infrared Reflecting Composite Inorganic Pigments Composed of TiO2/CuO Core–Shell Particles

2018 ◽  
Vol 71 (5) ◽  
pp. 373 ◽  
Author(s):  
Bolong Yao ◽  
Siyao Geng ◽  
Jie Wang ◽  
Likui Wang
Keyword(s):  
Electron Microscopy ◽  
Optical Properties ◽  
Near Infrared ◽  
Diffuse Reflectance Spectroscopy ◽  
Infrared Region ◽  
Molar Ratio ◽  
Core Shell ◽  
Near Infrared Reflectance ◽  
Cu Content ◽  
Solar Reflectance

Pigments with dark appearance and high solar energy reflectance are of great application value. In the present work, dark grey composite pigments with a TiO2/CuO core–shell structure were prepared through calcination of precursors obtained from the precipitation of Cu(OH)2 on TiO2 particles. The composition, structure, and optical properties of the synthesised powders were characterised by colourimetry, near-infrared diffuse reflectance spectroscopy, X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The pigments are composed of rutile TiO2 and tenorite CuO, and the powder colour changes from white to dark grey as the Cu content increases. With a molar ratio of CuO to TiO2 of 0.6, the pigment presents optimal colour (a* = 1.66, b* = −2.19, L* = 52.37) and optical performance. The near-infrared reflectance, the solar reflectance in the near-infrared region, and the total solar reflectance reach 87.2, 70.6, and 37.2 %, respectively. Furthermore, it is demonstrated that the composite pigments exhibit a deeper colour and higher reflectivity than conventional dark-blended powders. These cool dark pigments could be applied in the coatings for buildings (roofs and walls) to improve building comfortability and reduce cooling energy consumption.

scholarly journals Optical properties of CdO films prepared by DC planar magnetron sputtering

2014 ◽  
pp. 9-12
Keyword(s):  
Optical Properties ◽  
Magnetron Sputtering ◽  
Near Infrared ◽  
Infrared Region ◽  
Direct Band Gap ◽  
Glass Substrates ◽  
Planar Magnetron ◽  
Direct Band ◽  
Near Infrared Region ◽  
Cdo Films

CdOfilms have been produced on glass substrates by DC planar magnetron sputtering technique in Ar and O2 gases 1:4 and distance 6cm between cathode and anode and thickness 174 nm. It is observed from optical properties that the films possess transmittance 80% in visible and near infrared region of spectrum and direct band gap values in the rang 2.31-2.4 e V

Optical properties of orientated (SN)x-films in the visible and near infrared region

1976 ◽  
Vol 18 (7) ◽  
pp. 791-794 ◽  
Author(s):  
W. Möller ◽  
H.P. Geserich ◽  
L. Pintschovius
Keyword(s):  
Optical Properties ◽  
Near Infrared ◽  
Infrared Region ◽  
Near Infrared Region
Sign in / Sign up

Export Citation Format

Share Document