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Ruling out delamination in bismuth-enhanced polyimide electrochemical actuator with tunable active/passive layer thickness
Wang, Si-Qi; Zhang, Bin; Luo, Xue-Mei; Liang, Fei; Zhang, Guang-Ping
2020-03-21
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
Volume8Issue:11Pages:5679-5687
AbstractIonic electroactive polymer (iEAP) actuators have attracted wide attention due to their capability of producing desired deformation under low voltages by ion diffusion. However, these actuators are always subjected to a slow response and fatal delamination at the bonding interface during deformation. Here, we report a novel polyimide/gold/bismuth (PI/Au/Bi) actuator driven by the electrochemical redox of PI with tunable active/passive layer thickness to generate large and tunable strain, where metallic Bi is indispensable to promote the actuating behavior by enhancing the reversible redox of PI. Much faster charge transportation and better conductivity of the PI/Au/Bi film were observed after coating with Bi. The actuator demonstrated large and tunable strain under a long service life owing to the fact that PI acted as both the active layer and passive layer, which effectively ruled out the delamination issue. This work not only develops bismuth-enhanced ionic actuators, but finds a new use for low-dielectric-constant polymers rather than conductive polymers as actuator materials.
DOI10.1039/c9ta13003a
WOS IDWOS:000521109000027
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/83034
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang, Si-Qi,Zhang, Bin,Luo, Xue-Mei,et al. Ruling out delamination in bismuth-enhanced polyimide electrochemical actuator with tunable active/passive layer thickness[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(11):5679-5687.
APA Wang, Si-Qi,Zhang, Bin,Luo, Xue-Mei,Liang, Fei,&Zhang, Guang-Ping.(2020).Ruling out delamination in bismuth-enhanced polyimide electrochemical actuator with tunable active/passive layer thickness.JOURNAL OF MATERIALS CHEMISTRY A,8(11),5679-5687.
MLA Wang, Si-Qi,et al."Ruling out delamination in bismuth-enhanced polyimide electrochemical actuator with tunable active/passive layer thickness".JOURNAL OF MATERIALS CHEMISTRY A 8.11(2020):5679-5687.
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