期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 4, 期 46, 页码 10887-10892出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc03463b
关键词
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资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [NRF-2015R1C1A2A01053066, 2016R1C1B2006296]
- Creative Economy Leading Technology Development Program through the Gyeongsangbuk-Do
- Gyeongbuk Science & Technology Promotion Center of Korea [SF315012A]
- National Research Foundation of Korea [2016R1C1B2006296, 2015R1C1A2A01053066, 22A20130000202] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Low-voltage tungsten trioxide (WO3)-based electrochromic devices (ECDs) are successfully demonstrated. In contrast to conventional ECDs based on metal oxides, we directly introduce ferrocene (Fc) as an anodic species into the electrolyte layer. Accordingly, ECDs in this work do not require secondary electrochromic materials on the counter electrode, and thus device configuration and the fabrication process are simplified. The coloration and bleaching behaviors of the device occur in the voltage range of 0 V to -1.5 V with a maximum transmittance contrast (DTmax) of B52% at 700 nm. In addition, we systematically investigated a correlation between device performance and Fc concentration in the electrolyte layer. The optimized Fc concentration is 0.05 M, at which the coloration efficiency (Z) was B34.3 cm(2) C-1. Furthermore, adding Fc to the electrolyte results in better cyclic (coloration/bleaching) stability.
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