High-performance electrically conductive adhesives with aluminum-doped zinc oxide (AZO) for various flexible electronic devices

Cai, Shaoyong1; Cao, Ge1; Chen, Yonghao1; Zhang, He2; Jiang, Chengwei1; Tian, Yanqing1

2022-12-05

10.1016/j.eurpolymj.2022.111698

EUROPEAN POLYMER JOURNAL   Impact Factor & Quartile

0014-3057

1873-1945

Electrically conductive adhesives (ECAs) are a kind of attractive alternative to tin solders in microelectronics. However, fabricating high-performance, low-cost ECAs remains challenging due to the need for high-content metal fillers. This work reported a facile preparation of cost-effective ECAs composed of aluminum-doped zinc oxide (AZO) nanoparticles and silver (Ag) micro-flakes. The AZO nanoparticles could serve as a "bridge" to connect neighboring Ag micro-flakes to significantly improve the ECAs' conductivity (from 1638.8 x 10(-5) Omega.cm to 8.5 x 10(-5) Omega.cm). After the aging and bonding performance tests, prototyped applications of the as-prepared ECAs for three flexible electronic devices were demonstrated sequentially: (I) The resistance of flexible conductive film showed excellent dynamic stability after being folded for 1000 cycles, bent/released within 6 mm radius for more than 2000 cycles, or applied with 1000 kPa pressure; (II) The coil antenna achieved fast transmission of radio frequency signal for near field communication (NFC) system; (III) The flexible heater performed efficient thermal management at 0.4-1.4 V input voltages. Therefore, the fabricated ECAs are expected to provide new opportunities for the development of novel flexible electronic devices for future applications.

Conductive filler AZO nanoparticles Ag micro-flake Thermoplastic polyurethane Flexible devices

SCI

English

First ; Corresponding

[Y01256114]

Polymer Science

Polymer Science

WOS:000890239900001

PERGAMON-ELSEVIER SCIENCE LTD

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

Cai, Shaoyong,Cao, Ge,Chen, Yonghao,et al. High-performance electrically conductive adhesives with aluminum-doped zinc oxide (AZO) for various flexible electronic devices[J]. EUROPEAN POLYMER JOURNAL,2022,181.

Cai, Shaoyong,Cao, Ge,Chen, Yonghao,Zhang, He,Jiang, Chengwei,&Tian, Yanqing.(2022).High-performance electrically conductive adhesives with aluminum-doped zinc oxide (AZO) for various flexible electronic devices.EUROPEAN POLYMER JOURNAL,181.

Cai, Shaoyong,et al."High-performance electrically conductive adhesives with aluminum-doped zinc oxide (AZO) for various flexible electronic devices".EUROPEAN POLYMER JOURNAL 181(2022).