Fabrication of WO3 electrochromic devices using electro-exploding wire techniques and spray coating

2021 ◽  
Vol 223 ◽  
pp. 110960
Author(s):  
Chi-Ming Chang ◽  
Ya-Chen Chiang ◽  
Ming-Hsiang Cheng ◽  
Shiuan-Huei Lin ◽  
Wen-Bin Jian ◽  
...  
2019 ◽  
Vol 11 (25) ◽  
pp. 22858-22868 ◽  
Author(s):  
Naveen Malik ◽  
Neta Elool Dov ◽  
Graham de Ruiter ◽  
Michal Lahav ◽  
Milko E. van der Boom

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5691
Author(s):  
Carsten Graßmann ◽  
Maureen Mann ◽  
Lieva Van Langenhove ◽  
Anne Schwarz-Pfeiffer

Electrochromic devices can act as passive displays. They change their color when a low voltage is applied. Flexible and bendable hybrid textile-film electrochromic devices with poly-3,4-ethylenedioxythiophene polystyrene sulfonate (PEDOT:PSS) were prepared on polyethylene polyethylene terephthalate (PEPES) membranes using a spray coating technique. The electrolyte consisted of a gelatin glycerol mixture as host matrix and calcium chloride. Titanium dioxide was used as an ion storage layer and a carbon containing dispersion was used for the counter electrode on a polyester rip-stop fabric. The sheet resistance of PEDOT:PSS on PEPES was 500 Ohm/sq. A 5 × 5 electrochromic matrix with individually addressable pixels was successfully designed and assembled. The switching time of the pixels was 2 s at a voltage of 2.0 V directly after assembling. The use of titanium dioxide as ion storage also increased the contrast of the dark-blue reduced electrochromic layer. Coloration was not self-sustaining. The PEDOT:PSS layer needed a constant low voltage of at least 0.5 V to sustain in the dark-blue reduced state. The switching time increased with time. After 12 months the switching time was ~4 s at a voltage of 2.8 V. The addition of glycerol into the electrolyte extended the lifetime of a non-encapsulated textile electrochromic cell, because moisture is retained in the electrolyte. Charge carriers can be transported into and out of the electrochromic layer.


2004 ◽  
Vol 9 (4) ◽  
pp. 363-372 ◽  
Author(s):  
T. Lukaszewicz ◽  
A. Ravinski ◽  
I. Makoed

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.


2013 ◽  
Vol 133 (5) ◽  
pp. 170-176 ◽  
Author(s):  
Mikio Akamatsu ◽  
Kyohei Terao ◽  
Hidekuni Takao ◽  
Fusao Simokawa ◽  
Fumikazu Oohira ◽  
...  

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Agnes Filindawati Winarno

Penelitian ini menggunakan metode penelitian kuantitatif. Penelitian ini dilakukan di PT. Maspion I Divisi  Maxim Departemen Produksi Spray Coating. Data dikumpulkan dengan menggunakan alat bantu kuesioner terhadap 70 karyawan yang diambil secara sample random sampling. Analisis ini menggunakan analisis regresi linier berganda, dengan uji instrumen uji validitas, uji reliabilitas, uji asumsi klasik, dan determinasi menggunakan aplikasi komputer program SPSS 16.0. Dari hasil uji parsial (uji t) untuk Hasil uji t untuk variabel keselamatan dan kesehatan kerja (X1) mendapatkan Nilai signifikan sebesar 0,006 < 0,05 dan nilai Thitung 2.841 > Ttabel 1.667 sehingga dapat disimpulkan bahwa H1 ditolak Ha diterima, Hasil uji t untuk variabel lingkungan kerja (X2) mendapatkan Nilai signifikan sebesar 0,023 < 0,05 dan nilai Thitung 2.335 > Ttabel 1.667 sehingga dapat disimpulkan bahwa H2 ditolak Ha diterima, Hasil uji t untuk variabel semangat kerja (X3) mendapatkan Nilai signifikan sebesar 0,016 < 0,05 dan nilai Thitung 2.477 > Ttabel 1.667, sehingga dapat disimpulkan bahwa H3 ditolak Ha diterima, Hasil uji t untuk variabel stres kerja (X4) mendapatkan Nilai signifikan sebesar 0,021 < 0,05 dan nilai Thitung 2.365 > Ttabel 1.667, sehingga dapat disimpulkan bahwa H4 ditolak Ha diterima, jadi dapat disimpulkan bahwa semua variabel dari keselamatan kerja, lingkungan kerja, semangat kerja, dan stres kerja berpengaruh secara parsial terhadap kinerja karyawan PT. Maspion I Divisi Maxim Departemen Produksi Spray Coating. Dari hasil uji simultan (uji f) perhitungan yang diperoleh nilai F hitung sebesar 11.438 dengan tingkat signifikasi 0,000 < 0,05. Dengan demikian keputusan yang diambil Ho ditolak dan Ha diterima. Hal ini berarti bahwa semua variabel bebas secara bersama-sama mampu memengaruhi variabel terikat secara signifikan. Dari koefisien determinasi menjelaskan bahwa variabel bebas mampu menjelaskan sebesar 41.3% dan sebesar 58.7% dijelaskan oleh variabel lain yang tidak diteliti dalam penelitian ini.Kata Kunci : Keselamatan dan Kesehatan Kerja, Lingkungan Kerja, Semangat Kerja, Stres Kerja, dan Kinerja Karyawan.


2010 ◽  
Vol 52 (4) ◽  
pp. 252-256 ◽  
Author(s):  
Serkan Özel ◽  
Hüseyin Turhan

2020 ◽  
Vol 12 (4) ◽  
pp. 04032-1-04032-5
Author(s):  
V. V. Krivtsov ◽  
◽  
V. V. Kukla ◽  
V. V. Krivtsov ◽  
A. I. Shidlovskiy ◽  
...  

2011 ◽  
Vol 19 (4) ◽  
pp. 341
Author(s):  
Joel Díaz Reyes ◽  
Aarón Pérez-Benítez ◽  
Valentín Dorantes

<span>Tungsten(VI) oxide can be easily synthesized starting from a standard light bulb. The reaction consists in the oxidation at high temperatures (T ≈ 2000 – 3000° C) of a tungsten filament in presence of air; conditions which can be easily achieved by connecting a broken light bulb (but with its intact filament) to an AC-power supply of 110 volts. The vapor of WO3 is condensed into a beaker in a quantity enough to be characterized by infrared spectroscopy. The experiment is very funny, inexpensive and allows to the teacher to link several topics in current chemistry and physics of the tungsten oxides, such as their nomenclature and technological applications (i.e. electrochromic devices, gasochromic sensors, superalloys or as it is used in home: As a “simple” emisor of light!).</span>


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