Coordination Nanosheet-Based Electrochromic Supercapacitor with High Energy Storage, Switching Durability, and Long Optical Memory Properties.

ABSTRACT: Electrochromic (EC) supercapacitors have attracted considerable attention as energy storage systems integrated with optical functions. EC supercapacitors with high-performance and long-term optical memory properties were successfully fabricated by a combination of coordination nanosheets (CONASH), composed of Fe(II) ions and a tristerpyridine ligand having a nonconjugated linker, and nickel hexacyanoferrate (NiHCF) as a redox-complementary counter material. The EC supercapacitor exhibited EC changes between purple and pale yellow with large optical contrast (57.4% at 556 nm), short switching times (1.28/1.69 s), exceptionally high coloration efficiency (619 cm² C^-1), significantly small energy consumption (3.6 mJ/cm²), and excellent EC switching

SUBMITTER: Roy S 

PROVIDER: S-EPMC12616605 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature