| 초록 |
Electrochromic devices (ECDs) modulate their optical transmittance or absorbance according to the applied voltage. For ECDs, high operating stability is one of the most important factors for practical purpose. In this work, we examined performance dependence of ECDs with ion gels consisting of P(VDF-co-HFP) and room temperature ionic liquids on the concentration of EC materials of symmetric di-heptyl viologen and asymmetric mono-heptyl viologen. Based on the results, we successfully demonstrated ECDs exhibiting magenta colored state with good long-term operational stability. |
