Transmissive to blackish-green NIR electrochromism in a Co(ii)-based interfacial co-ordination thin film†
Abstract
Herein, a Co(II)-based metallo-polymer (Co-tpy-L) with a three armed non-conjugated terpyridine ligand is synthesized using solvent–solvent interfacial polymerization. The thin film exhibits durable transmissive-to-blackish green electrochromism, selectively covering both the visible and NIR regions with a moderate voltage range of −1.4 to 0 V.