scholarly journals Inkjet-printed all solid-state electrochromic devices based on NiO/WO3 nanoparticle complementary electrodes

Nanoscale ◽  
2016 ◽  
Vol 8 (1) ◽  
pp. 348-357 ◽  
Author(s):  
Guofa Cai ◽  
Peter Darmawan ◽  
Mengqi Cui ◽  
Jingwei Chen ◽  
Xu Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Optical Modulation ◽  
Electrochromic Device ◽  
Electrochromic Devices

An all solid-state complementary electrochromic device with large optical modulation was assembled by inkjet-printed NiO and WO3 electrodes.

A first truly all-solid state organic electrochromic device based on polymeric ionic liquids

2014 ◽  
Vol 50 (24) ◽  
pp. 3191-3193 ◽  
Author(s):  
Alexander S. Shaplov ◽  
Denis O. Ponkratov ◽  
Pierre-Henri Aubert ◽  
Elena I. Lozinskaya ◽  
Cédric Plesse ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Solid State ◽  
Solvent Free ◽  
Electrochromic Device ◽  
Simple Application ◽  
Electrochromic Devices ◽  
Polymeric Ionic Liquids ◽  
P Utilization

Utilization of polymeric ionic liquids in solvent-free electrochromic devices offers simple application of the latter in wide glazing and display production.

scholarly journals An All-Solid-State Electrochromic Device Based on WO3–Nb2O5 Composite Films Prepared by Fast-Alternating Bipolar-Pulsed Reactive Magnetron Sputtering

Coatings ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 9 ◽  
Author(s):  
Chien-Jen Tang ◽  
Ju-Liang He ◽  
Cheng-Chung Jaing ◽  
Chen-Jui Liang ◽  
Ching-Hung Chou ◽  
...  
Keyword(s):  
Solid State ◽  
Magnetron Sputtering ◽  
Response Times ◽  
Composite Films ◽  
Optical Modulation ◽  
Electrochromic Device ◽  
Coloration Efficiency ◽  
Sputtering Power ◽  
Bleaching Response ◽  
Negative Effect

In this study, WO3–Nb2O5 electrochromic films and an ITO/WO3–Nb2O5/Nb2O5/NiVOx/ITO all-solid-state electrochromic device were deposited using fast-alternating bipolar-pulsed magnetron sputtering using tungsten and niobium targets. The influence of different sputtering powers from the niobium target on the refractive index, extinction coefficient, optical modulation, coloration efficiency, reversibility, and durability of the WO3–Nb2O5 films is discussed. The aim of this work is to find the suitable Nb proportion to increase durability and less negative effect in the electrochromic performance of Nb2O5-doped WO3 films. The lifetime of the WO3–Nb2O5 films is 4 times longer than pure WO3 films when the sputtering power of the Nb target is higher than 250 W. The results show that WO3–Nb2O5 composite films used for an all-solid-state electrochromic device can sustain over 3 × 104 repeated coloring and bleaching cycles while the transmission modulations can be kept above 20%. The coloring and bleaching response times are 7.0 and 0.7 s, respectively.

scholarly journals Next Generation Hybrid Nanofiber Based Electrochromic Devices

2018 ◽  
Vol 1 (1) ◽  
pp. 884-893
Author(s):  
Cigdem Dulgerbaki ◽  
Aliihsan Komur ◽  
Aysegul Uygun Oksuz
Keyword(s):  
Optical Modulation ◽  
Electrochromic Device ◽  
Electrochromic Devices ◽  
Entire Surface ◽  
Long Term Stability ◽  
Hybrid Nanofibers ◽  
Electrospinning Method ◽  
Hybrid Nanofiber ◽  
Generation Hybrid

This study focuses on the electrochromic device (ECD) applications of poly(3,4-ethylenedioxythiophene)/tungsten oxide (PEDOT/WO3) hybrid nanofibers prepared via electrospinning method. Nanoporous WO3 films were initially electrosynthesized on Pt sheet. The PEDOT layer was electropolymerized onto the entire surface of the WO3 nanoporous host framework in the presence of different ionic liquids: 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4), 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6), 1-butyl- 3-methylimidazolium bis(trifluoromethylsulfonyl) imide (BMIMTFSI), and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl) imide (BMPTFSI). ECDs changed color reversibly from transparent to light brown by switching from +3 V to -3 V. It was found that the highest optical modulation of 47.89% and maximum coloration efficiency of 363.72 cm2/C is achieved for PEDOT/WO3/BMIMPF6 based electrochromic device. Hybrid nanofibers exhibited excellent long term stability even after 1000 chronoamperometric cycles.

Solid-state electrochromic devices: relationship of contrast as a function of device preparation parameters

2014 ◽  
Vol 2 (14) ◽  
pp. 2510-2516 ◽  
Author(s):  
Amrita Kumar ◽  
Michael T. Otley ◽  
Fahad Alhasmi Alamar ◽  
Yumin Zhu ◽  
Blaise G. Arden ◽  
...  
Keyword(s):  
Solid State ◽  
Preparation Method ◽  
Electrochromic Device ◽  
Device Performance ◽  
Performance Parameters ◽  
Electrochromic Devices ◽  
Large Area ◽  
One Step ◽  
Relationship Of

The establishment of a relationship between device performance parameters is reported here for a versatile one-step preparation method of a large area solid-state electrochromic device.

A large-area, flexible, high contrast and long-life stable solid-state electrochromic device driven by an anion-assisted method

2021 ◽  
Author(s):  
Lebin Wang ◽  
Xiang Zhang ◽  
Xi Chen ◽  
Xiaobai Li ◽  
Yingming Zhao ◽  
...  
Keyword(s):  
Solid State ◽  
Optical Modulation ◽  
Electrochromic Device ◽  
High Contrast ◽  
Large Area ◽  
Long Life

The H2O content in Li+ electrolyte can regulate the EC properties of NiO and ECDs. Large area flexible ECDs are investigated, exhibiting high optical modulation and long-life stability.

Preparation, Electronic Structure and Optical Properties of the Electrochromic Thin Films

2004 ◽  
Vol 9 (4) ◽  
pp. 363-372 ◽  
Author(s):  
T. Lukaszewicz ◽  
A. Ravinski ◽  
I. Makoed
Keyword(s):  
Electrochromic Device ◽  
Orbital Method ◽  
Optical Parameters ◽  
Full Potential ◽  
Electrochromic Devices ◽  
Energy Bands ◽  
Conducting Film ◽  
Recombination Probability ◽  
Transparent Conducting ◽  
Smoluchowski Equations

A new multilayer electrochromic device has been constructed according to the following pattern: glass1/ITO/WO3/gel electrolyte/BP/ITO/glass2, where ITO is a transparent conducting film made of indium and tin oxide and with the surface resistance equal 8–10 Ω/cm2 . The electrochromic devices obtained in the research are characterized by great (considerable) transmittance variation between coloration and bleaching state (25–40% at applied voltage of 1.5 to 3 V), and also high coloration efficiency (above 100 cm2 /C). Selfconsistent energy bands, dielectric permittivity and optical parameters are calculated using a full-potential linear muffin-tin orbital method. The numerical solution of the Debye-Smoluchowski equations is developed for simulating recombination probability of Li+ ions in amorphous electrolyte.

Strong coloration of nanoporous tungsten oxides by in-vacuo lithiation for all-solid-state electrochromic devices

2021 ◽  
pp. 138700
Author(s):  
Olivia Bouvard ◽  
Maxime Lagier ◽  
Luc Burnier ◽  
Anna Krammer ◽  
Andreas Schüler
Keyword(s):  
Solid State ◽  
Electrochromic Devices ◽  
Tungsten Oxides

Long life all-solid-state electrochromic devices by annealing

2021 ◽  
Vol 224 ◽  
pp. 110992
Author(s):  
Wenjie Li ◽  
Xiang Zhang ◽  
Xi Chen ◽  
Yingming Zhao ◽  
Wenhai Sun ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochromic Devices ◽  
Long Life

A Dual-Wavelength Electrochromic Film Based on Pt(II) Complex for Optical Modulation at Telecommunication Wavelength and Dark Solid-State Display Device

2021 ◽  
Author(s):  
Qiaozhen Pi ◽  
Dongqin Bi ◽  
dongfang qiu ◽  
Hongwei Wang ◽  
Xinfeng Cheng ◽  
...  
Keyword(s):  
Solid State ◽  
Dual Wavelength ◽  
Optical Modulation ◽  
Display Device ◽  
Redox Behaviour ◽  
Diffusion Controlled ◽  
Telecommunication Wavelength

A cyclometalated platinum phenylacetylide [(L)Pt(C≡C-ph)] {L = 4-[p-(diphenylamino)phenyl]-6-phenyl-2,2’-bipyridine} has been successfully synthesized and characterized. And its oxidative electropolymerization film with a non-diffusion controlled redox behaviour and an inverse dependence of...

Rapid switching solid state electrochromic devices based on complementary conducting polymer films

1996 ◽  
Vol 8 (10) ◽  
pp. 808-811 ◽  
Author(s):  
Shawn A. Sapp ◽  
Gregory A. Sotzing ◽  
Jerry L. Reddinger ◽  
John R. Reynolds
Keyword(s):  
Solid State ◽  
Conducting Polymer ◽  
Polymer Films ◽  
Electrochromic Devices ◽  
Rapid Switching ◽  
Conducting Polymer Films
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