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.

Spray-processable, large-area, patterned and all-solid-state electrochromic device based on silica/polyaniline nanocomposites

2019 ◽  
Vol 200 ◽  
pp. 109951 ◽  
Author(s):  
Sihang Zhang ◽  
Sheng Chen ◽  
Fei Hu ◽  
Ruizhang Xu ◽  
Bin Yan ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochromic Device ◽  
Large Area

Simplified All‐Solid‐State WO 3 Based Electrochromic Devices on Single Substrate: Toward Large Area, Low Voltage, High Contrast, and Fast Switching Dynamics

2020 ◽  
Vol 7 (3) ◽  
pp. 1901663 ◽  
Author(s):  
Pierluigi Cossari ◽  
Marco Pugliese ◽  
Cataldo Simari ◽  
Alessio Mezzi ◽  
Vincenzo Maiorano ◽  
...  
Keyword(s):  
Solid State ◽  
Low Voltage ◽  
High Contrast ◽  
Electrochromic Devices ◽  
Large Area ◽  
Fast Switching ◽  
Single Substrate ◽  
Switching Dynamics

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.

High contrast all-solid-state electrochromic device with 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO), heptyl viologen, and succinonitrile

2012 ◽  
Vol 99 ◽  
pp. 135-140 ◽  
Author(s):  
Chih-Wei Hu ◽  
Kun-Mu Lee ◽  
Kun-Chieh Chen ◽  
Li-Chi Chang ◽  
Kuan-Yu Shen ◽  
...  
Keyword(s):  
Solid State ◽  
Electrochromic Device ◽  
High Contrast

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.

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.

scholarly journals All-Solid-State Proton-Based Tandem Structure Achieving Ultrafast Switching Electrochromic Windows

2021 ◽  
Author(s):  
Zewei Shao ◽  
Aibin huang ◽  
Chen Ming ◽  
John Bell ◽  
Pu Yu ◽  
...  
Keyword(s):  
Solid State ◽  
Fast Response ◽  
Optical Modulation ◽  
Smart Window ◽  
Large Area ◽  
Solid Polymeric Electrolyte ◽  
Tandem Structure ◽  
Diffusion Speed ◽  
Ultrafast Switching ◽  
Window Applications

Abstract All-solid-state electrochromic devices (ECDs) for smart-window applications currently suffer from limited ion diffusion speed, which lead to slow coloration and bleaching processes. Here, we design an all-solid-state tandem structure with protons as diffusing species achieving an ultrafast switching ECD. We use WO3 as the electrochromic material, while poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) as the solid-state proton source to enable fast switching. This structure by itself exhibits low optical modulation (i.e., difference of on/off transmittance). We further introduce a solid polymeric electrolyte layer on top of PEDOT:PSS to form a tandem structure, which provides Na+ ions to PEDOT:PSS and pump protons there to the WO3 layer through ion exchange. Our new all-solid-state ECD features high optical modulation (>92% at 650 nm), fast response (coloration to 90% in 0.7 s and bleaching to 65% in 0.9 s and 90% in 7.1 s) and excellent stability (<10% degradation after 3000 cycles). Large-area (30×40 cm2) as well as flexible devices are fabricated to demonstrate the great potential for scaling up.

A high contrast solid-state electrochromic device based on nano-structural Prussian blue and poly(butyl viologen) thin films

2016 ◽  
Vol 145 ◽  
pp. 35-41 ◽  
Author(s):  
Miao-Syuan Fan ◽  
Sheng-Yuan Kao ◽  
Ting-Hsiang Chang ◽  
R. Vittal ◽  
Kuo-Chuan Ho
Keyword(s):  
Thin Films ◽  
Solid State ◽  
Prussian Blue ◽  
Electrochromic Device ◽  
High Contrast

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
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