Flexible and Transparent Electrode Based on Ag-Nanowire Embedded Colorless Poly(amide-imide)

Nanomaterials

Chan-Moon Chung¹  Seung-Hyun Lee¹  Kang-Hoon Yoon¹  Ju-Young Choi¹  Dam-Bi Kim¹  Gyumin Ji²  Sechang Park²  Soohaeng Cho²  Jaegun Lee²  Junhwan Jang² 

[1] Department of Chemistry, Yonsei University, Wonju 26493, Korea;Department of Physics, Yonsei University, Wonju 26493, Korea;

关键词: colorless poly(amide-imide);    Ag nanowire;    GO-cysteamine-Ag nanoparticle (GCA);    transparent and flexible electrode;    resistive switching memory;   

DOI  :  10.3390/nano12091457

来源: DOAJ

【 摘 要 】

Graphene oxide-cysteamine-silver nanoparticle (GCA)/silver nanowire (AgNW)/GCA/colorless poly(amide-imide) (cPAI) structures based on cPAI substrates with polyimide and polyamide syntheses were fabricated to study their characteristics. A layer of electrodes was constructed using a sandwich structure—such as GCA/AgNW/GCA—with cPAI used as a substrate to increase the heat resistance and improve their mechanical properties. Furthermore, to overcome the disadvantages of AgNWs—such as their high surface roughness and weak adhesion between the substrate and electrode layers—electrodes with embedded structures were fabricated using a peel-off process. Through bending, tapping, and durability tests, it was confirmed that these multilayer electrodes exhibited better mechanical durability than conventional AgNW electrodes. Resistive random-access memory based on GCA/AgNW/GCA/cPAI electrodes was fabricated, and its applicability to nonvolatile memory was confirmed. The memory device had an ON/OFF current ratio of ~10⁴@0.5 V, exhibiting write-once-read-many time characteristics, maintaining these memory characteristics for up to 300 sweep cycles. These findings suggest that GCA/AgNW/GCA/cPAI electrodes could be used as flexible and transparent electrodes for next-generation flexible nonvolatile memories.

【 授权许可】

Unknown