Lithium electrochromic performance of flexible Ni oxide films enhanced by Fe oxide addition with an atmospheric pressure plasma jet for flexible electrochromic application

摘要

Lithium electrochromic performance of flexible organo-nickel oxide (NiO (y) C (z) ) films enhanced by a rapid co-deposition with organo-iron oxide (FeO (y) C (z) ) onto 40 Omega/a- flexible polyethylene terephthalate/indium tin oxide substrates at a short exposed duration of 32 s using an atmospheric pressure plasma jet (APPJ) at various gas flow ratios of ferrocence [Fe(C5H5)(2)] precursors added onto nickelocence [Ni(C5H5)(2)] precursors is investigated. The APPJ-synthesized organo-nickel-iron oxide (NiFe (x) O (y) C (z) ) films possess notable electrochromic performance for 200 cycles of reversible Li+ ion intercalation and deintercalation in a 1 M LiClO4-propylene carbonate electrolyte by the switching measurements of potential sweep from -1.25 to 1.25 V at a scan rate of 50 mV/s and the potential step at -1.25 and 1.25 V. The optical modulation (aT) of 27.6 % for NiO (y) C (z) films with a thickness of 299 nm at a wavelength of 463.6 nm is highly improved up to of 46.8 % for NiFe (x) O (y) C (z) films with a thickness of 313 nm as synthesized with an APPJ at atmospheric pressure and room temperature (23 A degrees C).