Enhanced adhesion of Ag nanowire based transparent conducting electrodes for application in flexible electrochromic devices

Nanofilms of a polymer mixer of two ionomers, poly 3,4-ethylenedioxythiophene:poly(styrene sulfonic acid) (PEDOT:PSS), were used as conducting materials to develop transparent conducting electrodes. It was firstly found that convective deposition, a versatile and wide-area coating method, could be used for the coating and acid treatment of PEDOT:PSS films. Electrical conductivity of the PEDOT:PSS films was significantly enhanced up to 1814 S/cm by only one-time surface treatment by a mild acid solution (4 M methanesulfonic acid). This is because some PSS chains were removed out from the polymer mixer films without damage on the substrates. UV-vis-NIR spectroscopy, Raman spectroscopy, and cyclic voltammetry were used to characterize the acid-treated transparent conducting films. In this report, obtained transparent conducting PEDOT:PSS films on polyester substrates were used as flexible electrodes for fabrication of flexible electrochromic devices. Poly(3-hexylthiophene) (P3HT) was used as an active layer, which its color changed reversibly from transparent-light blue to purple with a small applied voltage (±3 V).

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Improved Long-Term Stability of Transparent Conducting Electrodes Based on Double-Laminated Electrosprayed Antimony Tin Oxides and Ag Nanowires

Archives of Metallurgy and Materials ◽

10.1515/amm-2017-0192 ◽

2017 ◽

Vol 62 (2) ◽

pp. 1275-1279

Author(s):

B.-R. Koo ◽

J.-W. Bae ◽

H.-J. Ahn

Keyword(s):

Tin Oxide ◽

Optical Transmittance ◽

Thermal Stabilities ◽

Long Term Stability ◽

Transparent Conducting ◽

Ag Nanowires ◽

Antimony Tin Oxide ◽

Transparent Conducting Electrodes ◽

Ag Nanowire

AbstractWe fabricated double-laminated antimony tin oxide/Ag nanowire electrodes by spin-coating and electrospraying. Compared to pure Ag nanowire electrodes and single-laminated antimony tin oxide/Ag nanowire electrodes, the double-laminated antimony tin oxide/Ag nanowire electrodes had superior transparent conducting electrode performances with sheet resistance ~19.8 Ω/□ and optical transmittance ~81.9%; this was due to uniform distribution of the connected Ag nanowires because of double lamination of the metallic Ag nanowires without Ag aggregation despite subsequent microwave heating at 250°C. They also exhibited excellent and superior long-term chemical and thermal stabilities and adhesion to substrate because double-laminated antimony tin oxide thin films act as the protective layers between Ag nanowires, blocking Ag atoms penetration.

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Ag nanowire percolating network embedded in indium tin oxide nanoparticles for printable transparent conducting electrodes

Applied Physics Letters ◽

10.1063/1.4866007 ◽

2014 ◽

Vol 104 (7) ◽

pp. 071906 ◽

Cited By ~ 23

Author(s):

Jin-A Jeong ◽

Han-Ki Kim

Keyword(s):

Tin Oxide ◽

Indium Tin Oxide ◽

Oxide Nanoparticles ◽

Transparent Conducting ◽

Tin Oxide Nanoparticles ◽

Transparent Conducting Electrodes ◽

Indium Tin Oxide Nanoparticles ◽

Percolating Network ◽

Ag Nanowire

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Investigation of the Electrical, Optical, and Mechanical Properties of Ag Nanowire Conducting Electrode

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.775.156 ◽

2018 ◽

Vol 775 ◽

pp. 156-162 ◽

Cited By ~ 1

Author(s):

Dominic C. Sanchez ◽

Mary Donnabelle L. Balela

Keyword(s):

Sheet Resistance ◽

Optical Transmittance ◽

Polymer Substrates ◽

Electrical Stress ◽

Transparent Conducting ◽

Ag Nanowires ◽

Optical And Mechanical Properties ◽

Transparent Conducting Electrodes ◽

Ink Formulation ◽

Ag Nanowire

Silver (Ag) nanowire having mean diameter and length of about 170.42 nm and 20.01 µm were prepared by the polyol process in ethylene glycol. Ag nanowires transparent conducting electrodes were then fabricated by depositing the Ag nanowires in ethanol and ink formulation on polymer substrates using a Meyer rod. The Ag nanowire electrodes exhibit an optical transmittance of about 68 % due to the large diameters of the as synthesized Ag nanowires. On the other hand, the sheet resistance was measured to be about 148 ohms/sq. When expose in air for 10 weeks, the sheet resistance increase to about 13 kohms/sq. Localized Joule heating during application of electrical stress of about 2 V for 7 days has resulted in the Ag nanowire degradation.

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

Nonlinear Analysis Modelling and Control ◽

10.15388/na.2004.9.4.15150 ◽

2004 ◽

Vol 9 (4) ◽

pp. 363-372 ◽

Cited By ~ 2

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.

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