Black-to-Transmissive Electrochromic Switching PEDOT-co-poly(N-ethylcarbazole) via a Sustainable and Facile In Situ Photo(co)polymerization Method
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Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Chemical Soc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
It is a great challenge to obtain black-to-transmissive switches using one type of polymer. Therefore, the color blending/mixing theory has been previously applied by many research groups to produce black-to-transmissive materials (BTMs) through the (electro)chemical copolymerization of several monomers. However, these (electro)chemical copolymerization methods exhibited numerous drawbacks in terms of sustainability. In this work, for the first time, the synthesis of an electrically conductive (bromide-doped) poly(3,4-ethylenedioxythiophene)-poly(N-ethylcarbazole) (PEDOT-co-PECz) copolymer was demonstrated using an in situ and sustainable photopolymerization technique. Spectrally and microscopically characterized copolymers were then deposited onto ITO/glass using spray coating. The copolymer film demonstrated to switch from a black state (L*: 38.16; a: -0.33; b: -2.89) to a transmissive state (L* = 83, a* = -3, b* = -6) with a contrast of 31.6% Delta T at 650 nm in fast response times (2.28-4.38 s). The results highlight the importance of this advanced method for the sustainable and fast fabrication of smart windows.
Açıklama
Anahtar Kelimeler
Electrochemical Polymerization, Conducting Polymers, Carbazole, Devices, Copolymers, 3,4-Ethylenedioxythiophene, Performance, Fabrication, State, Films
Kaynak
Macromolecules
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
57
Sayı
10
