Photochromic Properties of Tungsten Oxide/Methylcellulose Composite Film Containing Dispersing Agents

2015 ◽  
Vol 7 (47) ◽  
pp. 26326-26332 ◽  
Author(s):  
Suzuko Yamazaki ◽  
Hiroki Ishida ◽  
Dai Shimizu ◽  
Kenta Adachi
Keyword(s):  
Composite Film ◽  
Tungsten Oxide ◽  
Photochromic Properties ◽  
Dispersing Agents

scholarly journals Effects of Excess Cu Addition on Photochromic Properties of AgCl-Urethane Resin Composite Films

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Hidetoshi Miyazaki ◽  
Hirochi Shimoguchi ◽  
Hiroki Nakayama ◽  
Hisao Suzuki ◽  
Toshitaka Ota
Keyword(s):  
Particle Size ◽  
Composite Film ◽  
Resin Composite ◽  
Composite Films ◽  
Mixing Ratio ◽  
Photochromic Properties

AgCl-resin photochromic composite films were prepared using AgNO3, HCl-EtOH, CuCl2ethanol solutions, and a urethane resin as starting materials. The AgCl particle size in the composite films, which was confirmed via TEM observations, was 23–43 nm. The AgCl composite films showed photochromic properties: coloring induced by UV-vis irradiation and bleaching induced by cessation of UV-vis irradiation. The coloring and bleaching speed of the composite film increases with increasing CuCl2mixing ratio.

Advances on tungsten oxide based photochromic materials: strategies to improve their photochromic properties

2018 ◽  
Vol 6 (2) ◽  
pp. 191-212 ◽  
Author(s):  
Shufen Wang ◽  
Weiren Fan ◽  
Zichuan Liu ◽  
Aibing Yu ◽  
Xuchuan Jiang
Keyword(s):  
Tungsten Oxide ◽  
Photochromic Properties ◽  
Photochromic Materials

Photochromic materials have been extensively studied because they are quite attractive and promising for many applications.

scholarly journals Tungsten Oxide and Polyaniline Composite Fabricated by Surfactant-Templated Electrodeposition and Its Use in Supercapacitors

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Benxue Zou ◽  
Shengchen Gong ◽  
Yan Wang ◽  
Xiaoxia Liu
Keyword(s):  
Composite Film ◽  
Tungsten Oxide ◽  
Surfactant Solution ◽  
Charge Storage ◽  
Sodium Dodecylbenzene Sulfonate ◽  
Carbon Electrode ◽  
Aniline Monomer ◽  
Dodecylbenzene Sulfonate ◽  
Pani Composite ◽  
Potential Rate

Composite nanostructures of tungsten oxide and polyaniline (PANI) were fabricated on carbon electrode by electrocodeposition using sodium dodecylbenzene sulfonate (SDBS) as the template. The morphology of the composite can be controlled by changing SDBS surfactant and aniline monomer concentrations in solution. With increasing concentration of aniline in surfactant solution, the morphological change from nanoparticles to nanofibers was observed. The nanostructured WO3/PANI composite exhibited enhanced capacitive charge storage with the specific capacitance of 201 F g−1at 1.28 mA cm−2in large potential window of-0.5~ 0.65 V versus SCE compared to the bulk composite film. The capacitance retained about 78% when the sweeping potential rate increased from 10 to 150 mV/s.

scholarly journals Photochromic and Photocatalytic Properties of Ultra-Small PVP-Stabilized WO3 Nanoparticles

Molecules ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 154 ◽  
Author(s):  
Daniil A. Kozlov ◽  
Alexander B. Shcherbakov ◽  
Taisiya O. Kozlova ◽  
Borislav Angelov ◽  
Gennady P. Kopitsa ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Nanocrystalline Materials ◽  
Biomedical Applications ◽  
Photocatalytic Properties ◽  
Photochromic Properties ◽  
Considerable Contribution ◽  
Sodium Cations ◽  
Tungsten Species ◽  
Photocatalytic Reactions ◽  
Exchange Technique

Tungsten oxide-based bulk and nanocrystalline materials are widely used as photocatalytic and photo- and electrochromic materials, as well as materials for biomedical applications. In our work, we focused our attention on the effect of sodium cations on the structure and photochromic properties of the WO3@PVP aqueous sols. To establish the effect, the sols were synthesized by either simple pH adjusting of sodium or ammonium tungstates’ solutions, or using an ion exchange technique to remove the cations from the materials to the greatest possible extent. We showed that the presence of sodium cations in WO3@PVP favors the formation of reduced tungsten species (W+5) upon UV irradiation of the materials, strongly affecting their photochromic and photocatalytic properties. The pronounced photoreductive properties of WO3@PVP sols in photocatalytic reactions were demonstrated. Due to photoreductive properties, photochromic sols of tungsten oxide can act as effective photoprotectors in photooxidation processes. We believe that our work provides a considerable contribution to the elucidation of photochromic and redox phenomena in WO3-based materials.

scholarly journals Correction: Advances on tungsten oxide based photochromic materials: strategies to improve their photochromic properties

2019 ◽  
Vol 7 (32) ◽  
pp. 10119-10119
Author(s):  
Shufen Wang ◽  
Weiren Fan ◽  
Zichuan Liu ◽  
Aibing Yu ◽  
Xuchuan Jiang
Keyword(s):  
Tungsten Oxide ◽  
Photochromic Properties ◽  
Photochromic Materials

Correction for ‘Advances on tungsten oxide based photochromic materials: strategies to improve their photochromic properties’ by Shufen Wang et al., J. Mater. Chem. C, 2018, 6, 191–212.

scholarly journals A Review on the Properties and Applications of WO3 Nanostructure−Based Optical and Electronic Devices

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2136
Author(s):  
Yu Yao ◽  
Dandan Sang ◽  
Liangrui Zou ◽  
Qinglin Wang ◽  
Cailong Liu
Keyword(s):  
Electrical Properties ◽  
Transition Metal ◽  
Metal Oxides ◽  
Tungsten Oxide ◽  
Transition Metal Oxides ◽  
Electronic Devices ◽  
Information Storage ◽  
High Electron ◽  
Photochromic Properties ◽  
Wide Range

Tungsten oxide (WO3) is a wide band gap semiconductor with unintentionally n−doping performance, excellent conductivity, and high electron hall mobility, which is considered as a candidate material for application in optoelectronics. Several reviews on WO3 and its derivatives for various applications dealing with electrochemical, photoelectrochemical, hybrid photocatalysts, electrochemical energy storage, and gas sensors have appeared recently. Moreover, the nanostructured transition metal oxides have attracted considerable attention in the past decade because of their unique chemical, photochromic, and physical properties leading to numerous other potential applications. Owing to their distinctive photoluminescence (PL), electrochromic and electrical properties, WO3 nanostructure−based optical and electronic devices application have attracted a wide range of research interests. This review mainly focuses on the up−to−date progress in different advanced strategies from fundamental analysis to improve WO3 optoelectric, electrochromic, and photochromic properties in the development of tungsten oxide−based advanced devices for optical and electronic applications including photodetectors, light−emitting diodes (LED), PL properties, electrical properties, and optical information storage. This review on the prior findings of WO3−related optical and electrical devices, as well as concluding remarks and forecasts will help researchers to advance the field of optoelectric applications of nanostructured transition metal oxides.

scholarly journals Microstructures of Poly(ethylene glycol)/Tungsten Oxide Hybrid Films Exhibiting Photochromic Properties.

2002 ◽  
Vol 59 (10) ◽  
pp. 608-615 ◽  
Author(s):  
Hiroki IKAKE ◽  
Yumiko FUKUDA ◽  
Shigeru SHIMIZU ◽  
Kimio KURITA ◽  
Shoichiro YANO
Keyword(s):  
Ethylene Glycol ◽  
Tungsten Oxide ◽  
Hybrid Films ◽  
Poly Ethylene Glycol ◽  
Photochromic Properties ◽  
Poly Ethylene
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