UV–vis spectra of (a) poly(N-methyl pyrrole) (PNMPy), (b) P(CPDT-co-NMPy) and (c) PCPDT deposited onto indium-tin-oxide-coated at the neutral state. Insets: (A) light yellowish green, (B) reddish brown, (C) purple are de-doped films, and (A′) pale cyan, (B′) light blue, (C′) blue are doped films of PNMPy, P(CPDT-co-NMPy) and PCPDT, respectively. The different electrochromic properties of the three polymers confirmed the occurrence of copolymerization between NMPy with CPDT
- Yunzhi Fu
- Xinfeng Cheng
- Xianxi Zhang