Voltage-heating responsive and patternable solvatochromism display utilizing nickel complex-Nafion film composites

In this work, a voltage-heating actuated flexible solvatochromic film is developed using the composites of Nafion film-nickel complexes with spray-coated silver nanowires (AgNWs). The nickel complexes, inside Nafion film through ion exchange, serve as colorable components due to the coordination num...

Full description

Bibliographic Details
Main Authors: Yanjie Wang, Lei Zhang, Bo Li, Gangqiang Tang, Xin Zhao, Zeyu Zhang, Lijie Li
Format: Article
Language:English
Published: SAGE Publishing 2022-08-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/16878132221116484
_version_ 1811283306446061568
author Yanjie Wang
Lei Zhang
Bo Li
Gangqiang Tang
Xin Zhao
Zeyu Zhang
Lijie Li
author_facet Yanjie Wang
Lei Zhang
Bo Li
Gangqiang Tang
Xin Zhao
Zeyu Zhang
Lijie Li
author_sort Yanjie Wang
collection DOAJ
description In this work, a voltage-heating actuated flexible solvatochromic film is developed using the composites of Nafion film-nickel complexes with spray-coated silver nanowires (AgNWs). The nickel complexes, inside Nafion film through ion exchange, serve as colorable components due to the coordination number change of water molecules in solvatochromism. The color-changing process of the composites was characterized experimentally by adjusting the water content in films, which exhibit distinct coloration properties from red to green with an absorbency shift (0.25–0.60 at 420–550 nm). To achieve an electrical actuation, the electrothermal joule effect of AgNWs is studied to accelerate the hydrolysis of the nickel complexes. A mask patterned spraying process is developed to increase the adhesion between AgNWs and Nafion film, which can be beneficial in a low (2–5 V) voltage-regulated coloration. This study provides a systematic investigation of flexible electrothermally responsive color-changing film of complex metal ions, the composite film prepared from flexible smart materials and well-adhered electrodes have potential applications in the fields of adaptive camouflage, wearable display devices and e-skins.
first_indexed 2024-04-13T02:09:03Z
format Article
id doaj.art-50f4d9a3d0ac4624840089c77eef9718
institution Directory Open Access Journal
issn 1687-8140
language English
last_indexed 2024-04-13T02:09:03Z
publishDate 2022-08-01
publisher SAGE Publishing
record_format Article
series Advances in Mechanical Engineering
spelling doaj.art-50f4d9a3d0ac4624840089c77eef97182022-12-22T03:07:21ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402022-08-011410.1177/16878132221116484Voltage-heating responsive and patternable solvatochromism display utilizing nickel complex-Nafion film compositesYanjie Wang0Lei Zhang1Bo Li2Gangqiang Tang3Xin Zhao4Zeyu Zhang5Lijie Li6Jiangsu Provincial Key Laboratory of Special Robot Technology, School of Mechanical and Electrical Engineering, Hohai University, Changzhou, ChinaJiangsu Provincial Key Laboratory of Special Robot Technology, School of Mechanical and Electrical Engineering, Hohai University, Changzhou, ChinaShaanxi Key Lab of Intelligent Robots, School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an, ChinaJiangsu Provincial Key Laboratory of Special Robot Technology, School of Mechanical and Electrical Engineering, Hohai University, Changzhou, ChinaJiangsu Provincial Key Laboratory of Special Robot Technology, School of Mechanical and Electrical Engineering, Hohai University, Changzhou, ChinaJiangsu Provincial Key Laboratory of Special Robot Technology, School of Mechanical and Electrical Engineering, Hohai University, Changzhou, ChinaMultidisciplinary Nanotechnology Centre, College of Engineering, Swansea University, Swansea, UKIn this work, a voltage-heating actuated flexible solvatochromic film is developed using the composites of Nafion film-nickel complexes with spray-coated silver nanowires (AgNWs). The nickel complexes, inside Nafion film through ion exchange, serve as colorable components due to the coordination number change of water molecules in solvatochromism. The color-changing process of the composites was characterized experimentally by adjusting the water content in films, which exhibit distinct coloration properties from red to green with an absorbency shift (0.25–0.60 at 420–550 nm). To achieve an electrical actuation, the electrothermal joule effect of AgNWs is studied to accelerate the hydrolysis of the nickel complexes. A mask patterned spraying process is developed to increase the adhesion between AgNWs and Nafion film, which can be beneficial in a low (2–5 V) voltage-regulated coloration. This study provides a systematic investigation of flexible electrothermally responsive color-changing film of complex metal ions, the composite film prepared from flexible smart materials and well-adhered electrodes have potential applications in the fields of adaptive camouflage, wearable display devices and e-skins.https://doi.org/10.1177/16878132221116484
spellingShingle Yanjie Wang
Lei Zhang
Bo Li
Gangqiang Tang
Xin Zhao
Zeyu Zhang
Lijie Li
Voltage-heating responsive and patternable solvatochromism display utilizing nickel complex-Nafion film composites
Advances in Mechanical Engineering
title Voltage-heating responsive and patternable solvatochromism display utilizing nickel complex-Nafion film composites
title_full Voltage-heating responsive and patternable solvatochromism display utilizing nickel complex-Nafion film composites
title_fullStr Voltage-heating responsive and patternable solvatochromism display utilizing nickel complex-Nafion film composites
title_full_unstemmed Voltage-heating responsive and patternable solvatochromism display utilizing nickel complex-Nafion film composites
title_short Voltage-heating responsive and patternable solvatochromism display utilizing nickel complex-Nafion film composites
title_sort voltage heating responsive and patternable solvatochromism display utilizing nickel complex nafion film composites
url https://doi.org/10.1177/16878132221116484
work_keys_str_mv AT yanjiewang voltageheatingresponsiveandpatternablesolvatochromismdisplayutilizingnickelcomplexnafionfilmcomposites
AT leizhang voltageheatingresponsiveandpatternablesolvatochromismdisplayutilizingnickelcomplexnafionfilmcomposites
AT boli voltageheatingresponsiveandpatternablesolvatochromismdisplayutilizingnickelcomplexnafionfilmcomposites
AT gangqiangtang voltageheatingresponsiveandpatternablesolvatochromismdisplayutilizingnickelcomplexnafionfilmcomposites
AT xinzhao voltageheatingresponsiveandpatternablesolvatochromismdisplayutilizingnickelcomplexnafionfilmcomposites
AT zeyuzhang voltageheatingresponsiveandpatternablesolvatochromismdisplayutilizingnickelcomplexnafionfilmcomposites
AT lijieli voltageheatingresponsiveandpatternablesolvatochromismdisplayutilizingnickelcomplexnafionfilmcomposites