Fast-switching electrochromic properties of mesoporous WO3 films with oxygen vacancy defects

Nanoscale ◽  
2017 ◽  
Vol 9 (45) ◽  
pp. 17788-17793 ◽  
Author(s):  
Bon-Ryul Koo ◽  
Hyo-Jin Ahn
Keyword(s):  
Oxygen Vacancy ◽  
Vacancy Defects ◽  
Electrochromic Properties ◽  
Coloration Efficiency ◽  
Fast Switching ◽  
Ultrafast Switching

Mesoporous WO3 films with oxygen vacancy defects fabricated via camphene show multifunctional electrochromic properties of ultrafast switching speeds and high coloration efficiency.

The fabrication of oriented organic–inorganic ultrathin films with enhanced electrochromic properties

2016 ◽  
Vol 4 (35) ◽  
pp. 8284-8290 ◽  
Author(s):  
Awu Zhou ◽  
Xiaoxi Liu ◽  
Yibo Dou ◽  
Shanyue Guan ◽  
Jingbin Han ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Ultrathin Films ◽  
Good Stability ◽  
Hybrid Films ◽  
Inorganic Hybrid ◽  
Electrochromic Properties ◽  
Coloration Efficiency ◽  
Ultrafast Switching ◽  
Double Hydroxide

Organic–inorganic hybrid films are fabricated via an alternate assembly of poly(3,4-ethylene-dioxythiophene)–poly(styrene sulphonate) (PEDOT:PSS) and layered double hydroxide (LDH) nanosheets, which display significantly enhanced electrochromic performance, including ultrafast switching, high coloration efficiency and good stability.

scholarly journals Charge-Transfer Induced by the Oxygen Vacancy Defects in the Ag/MoO3 Composite System

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1292
Author(s):  
Qi Chu ◽  
Jingmeng Li ◽  
Sila Jin ◽  
Shuang Guo ◽  
Eungyeong Park ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Oxygen Vacancy ◽  
Composite System ◽  
Wide Band ◽  
Utilization Rate ◽  
Wide Band Gap ◽  
Interesting Phenomenon ◽  
Vacancy Defects ◽  
Characterization Methods ◽  
Surface Enhanced Raman

In this paper, an Ag/MoO3 composite system was cosputtered by Ar plasma bombardment on a polystyrene (PS) colloidal microsphere array. The MoO3 formed by this method contained abundant oxygen vacancy defects, which provided a channel for charge transfer in the system and compensated for the wide band gap of MoO3. Various characterization methods strongly demonstrated the existence of oxygen vacancy defects and detected the properties of oxygen vacancies. 4-Aminothiophenol (p-aminothiophenol, PATP) was used as a candidate surface-enhanced Raman scattering (SERS) probe molecule to evaluate the contribution of the oxygen vacancy defects in the Ag/MoO3 composite system. Interestingly, oxygen vacancy defects are a kind of charge channel, and their powerful effect is fully reflected in their SERS spectra. Increasing the number of charge channels and increasing the utilization rate of the channels caused the frequency of SERS characteristic peaks to shift. This interesting phenomenon opens up a new horizon for the study of SERS in oxygen-containing semiconductors and provides a powerful reference for the study of PATP.

Oxygen vacancy defects in Ta2O5 showing long-range atomic re-arrangements

2014 ◽  
Vol 104 (11) ◽  
pp. 112906 ◽  
Author(s):  
Yuzheng Guo ◽  
John Robertson
Keyword(s):  
Oxygen Vacancy ◽  
Long Range ◽  
Vacancy Defects

Facile Removal of Bulk Oxygen Vacancy Defects in Metal Oxides Driven by Hydrogen-Dopant Evaporation

2021 ◽  
pp. 9579-9583
Author(s):  
Min Hu ◽  
Qing Zhu ◽  
Yuan Zhao ◽  
Guozhen Zhang ◽  
Chongwen Zou ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Metal Oxides ◽  
Vacancy Defects ◽  
Bulk Oxygen

A copper-based sorbent with oxygen-vacancy defects from mechanochemical reduction for carbon disulfide absorption

2016 ◽  
Vol 4 (43) ◽  
pp. 17207-17214 ◽  
Author(s):  
Haipeng Chen ◽  
Shixue Zhou ◽  
Zongying Han ◽  
Yaoyao Jiang ◽  
Hao Yu ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Carbon Disulfide ◽  
Particle Surface ◽  
Vacancy Defects ◽  
Trapping Sites

Mechanochemical reduction of CuO can generate Ovacdefects on the particle surface and they act as trapping sites for CS2absorption.

Improved electrochromic performance of a radio frequency magnetron sputtered NiO thin film with high optical switching speed

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 79668-79680 ◽  
Author(s):  
K. S. Usha ◽  
R. Sivakumar ◽  
C. Sanjeeviraja ◽  
Vasant Sathe ◽  
V. Ganesan ◽  
...  
Keyword(s):  
Thin Film ◽  
Radio Frequency ◽  
Optical Switching ◽  
Switching Time ◽  
Rf Magnetron Sputtering ◽  
Optical Modulation ◽  
Switching Speed ◽  
Coloration Efficiency ◽  
Fast Switching ◽  
Nio Thin Film

A nickel oxide (NiO) thin film with better reversibility, high optical modulation, and enhanced coloration efficiency with fast switching time was prepared using radio frequency (rf) magnetron sputtering technique.

Oxygen Vacancy Defects and a Field Effect-Mediated ZnO/WO2.92 Heterojunction for Enhanced Corrosion Resistance

2021 ◽  
Author(s):  
Xiao-Jiao Guo ◽  
Xiu Yang ◽  
Xiao-Yu Yuan ◽  
Dan Zhou ◽  
Yi Lu ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Oxygen Vacancy ◽  
Field Effect ◽  
Vacancy Defects
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