https://scholars.lib.ntu.edu.tw/handle/123456789/408677
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Lu H.-C. | en_US |
dc.contributor.author | Kao S.-Y. | en_US |
dc.contributor.author | Yu H.-F. | en_US |
dc.contributor.author | Chang T.-H. | en_US |
dc.contributor.author | Kung C.-W. | en_US |
dc.contributor.author | Ho K.-C. | en_US |
dc.creator | Kung C.-W.;Chang T.-H.;Yu H.-F.;Kao S.-Y.;Lu H.-C.;Ho K.-C. | - |
dc.date.accessioned | 2019-05-17T00:50:23Z | - |
dc.date.available | 2019-05-17T00:50:23Z | - |
dc.date.issued | 2016 | - |
dc.identifier.issn | 19448244 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/408677 | - |
dc.description.abstract | Herein, three kinds of viologens-based electrochromic devices (ECDs) (heptyl viologen (HV(BF4)2), octyl viologen (OV(BF4)2), and nonyl viologen (NV(BF4)2)) were fabricated utilizing ferrocene (Fc) as a redox mediator. Among them, the NV(BF4)2-based ECD exhibits the highest coloration efficiency (36.2 cm2/C) owing to the lowest driving energy. Besides, switching between 0 and 1.2 V, the NV(BF4)2-based ECD shows a desirable initial transmittance change (£_T = 56.7% at 605 nm), and long-term stability (£_T = 45.4% after 4000 cycles). Furthermore, a UV-cured polymer electrolyte containing polymeric ionic liquid (PIL, 1-allyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) and ethoxylated trimethylolpropane triacrylate (ETPTA) was introduced to the NV(BF4)2-based ECD. By controlling the weight percentage of the PIL, different curing degrees of the polymer electrolytes were obtained and led to an improved stability of the NV(BF4)2-based ECD because of the immobilization of NV(BF4)2. This observation was explained by calculating the apparent diffusivity (Dapp) of the redox species in the NV(BF4)2-based ECD under various curing degrees. In addition, increasing the amount of PIL leads to a lower driven energy needed for the NV(BF4)2-based ECD, following the same trend as the value of Dapp. Among all NV(BF4)2-based ECDs, 20 wt % of PIL addition (20-PIL ECD) exhibits large transmittance change (£_T = 55.2% at 605 nm), short switching times (2.13 s in coloring and 2.10 s in bleaching), high coloration efficiency (60.4 and 273.5 cm2/C at 605 nm, after excluding the current density at the steady state), and exceptional cycling stability (£_T = 53.8% after 10,000 cycles, or retained 97.5% of its initial £_T). ? 2016 American Chemical Society. | - |
dc.language | English | - |
dc.relation.ispartof | ACS Applied Materials and Interfaces | en_US |
dc.subject | diffusion coefficient | - |
dc.subject | electrochemistry | - |
dc.subject | electrochromic devices (ECDs) | - |
dc.subject | gel electrolytes | - |
dc.subject | ionic liquids | - |
dc.subject | polymer electrolytes | - |
dc.subject | UV-curing | - |
dc.subject | viologens | - |
dc.title | Achieving Low-Energy Driven Viologens-Based Electrochromic Devices Utilizing Polymeric Ionic Liquids | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1021/acsami.6b10152 | - |
dc.identifier.scopus | 2-s2.0-84994745337 | - |
dc.identifier.url | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84994745337&doi=10.1021%2facsami.6b10152&partnerID=40&md5=54512ada2fb061be42047482a0ce8445 | - |
dc.relation.pages | 30351-30361 | - |
dc.relation.journalvolume | 8 | - |
dc.relation.journalissue | 44 | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
crisitem.author.dept | Chemical Engineering | - |
crisitem.author.dept | Polymer Science and Engineering | - |
crisitem.author.orcid | 0000-0001-7501-1271 | - |
crisitem.author.parentorg | College of Engineering | - |
crisitem.author.parentorg | College of Engineering | - |
顯示於: | 化學工程學系 |
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