Characteristics of Li–P–W–O–N electrolyte for all solid state electrochromic devices

A LiPON–WO3 composite thin film (LPWON) was evaluated for use as a solid electrolyte in solid state electrochromic (EC) devices. LiPO4 and a WO3 (2wt%) composite sputtering target was synthesized by a ball milling process. The LPWON thin films were deposited by RF magnetron sputtering in Ar+N2 and N...

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Bibliographic Details
Published in:Electrochimica acta 2011-11, Vol.56 (27), p.9741-9745
Main Authors: Jee, Seung Hyun, Kakati, Nitul, Lee, Seok Hee, Ahn, Ho Sang, Kim, Dong-Joo, Bang, Jaecheol, Yoon, Young Soo
Format: Article
Language:English
Subjects:
Chemistry
Devices
Electrochemistry
Electrochromic
Electrochromism
Electrodes
Electrolytes
Exact sciences and technology
General and physical chemistry
Ionic conductivity
Miscellaneous (electroosmosis, electrophoresis, electrochromism, electrocrystallization, ...)
Network modifier
Solid electrolyte
Solid electrolytes
Solid state
Thin film
Thin films
Tungsten oxides
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Summary:A LiPON–WO3 composite thin film (LPWON) was evaluated for use as a solid electrolyte in solid state electrochromic (EC) devices. LiPO4 and a WO3 (2wt%) composite sputtering target was synthesized by a ball milling process. The LPWON thin films were deposited by RF magnetron sputtering in Ar+N2 and N2 atmospheres. The structural, electrochemical, and optical properties of the LPWON electrolytes were characterized by X-ray diffraction (XRD), UV–visible spectroscopy, and an impedance analyzer. EC mirrors with WO3 (coloring layer), LPWON (solid electrolyte), and stainless steel (mirror electrode) on ITO (transparent electrode) glass were fabricated to analyze the improved EC properties due to the LPWON electrolyte. The LPWON may lead to electrolytes with more stable potential cycle properties.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2011.07.123