Asymmetric molecular modification of viologens for highly stable electrochromic devices
RSC Advances, ISSN: 2046-2069, Vol: 10, Issue: 1, Page: 394-401
2019
- 38Citations
- 30Captures
- 1Mentions
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations38
- Citation Indexes38
- 38
- CrossRef30
- Captures30
- Readers30
- 30
- Mentions1
- Blog Mentions1
- Blog1
Article Description
Viologens are one of the most well-known electrochromic (EC) chromophores. In particular, symmetric dialkyl viologens have been widely used in EC devices (ECDs), but suffer from the formation of viologen radical cation dimers that deteriorate device performance. In this work, we propose an effective route to suppress dimer formation through molecularly altering one of the N-substituents. We prepare 1-benzyl-1′-heptyl viologens and find that such asymmetric molecular structures attribute to the suppression of dimer production when used as EC chromophores. The suppression of dimer formation allows us to drive the device at relatively higher voltages, so that we could achieve viologen-based ECDs showing large transmittance changes between colored and bleached states, efficient and fast coloration, and stable coloration/bleaching cyclic operation. The results indicate that high-performance ECDs can be realized by utilizing viologens containing asymmetric molecular structures.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85077516819&origin=inward; http://dx.doi.org/10.1039/c9ra09007j; http://www.ncbi.nlm.nih.gov/pubmed/35492563; https://xlink.rsc.org/?DOI=C9RA09007J; https://dx.doi.org/10.1039/c9ra09007j; https://pubs.rsc.org/en/content/articlelanding/2020/ra/c9ra09007j
Royal Society of Chemistry (RSC)
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