Transparent, smooth, and sustainable cellulose-derived conductive film applied for the flexible electronic device

Xi Liu, Wei Xiao, Tao Tao, JIawei Yang, Huixin Li, Qunfeng Chen, Liulian Huang, Yonghao Ni, Lihui Chen, Xinhua Ouyang, Xuhai Zhu, Jianguo Li

Research output: Contribution to journalArticleScientificpeer-review

Abstract

A high-performance flexible conductive substrate is one of the key components for developing promising wearable devices. Concerning this, a sustainable, flexible, transparent, and conductive cellulose/ZnO/AZO (CZA) film was developed in this study. The cellulose was used as the transparent substrate. The added AZO was as the conductive layer and ZnO functioned as an interface buffer layer. Results showed that the interface buffer layer of ZnO effectively alleviated the intrinsic incompatibility of organic cellulose and inorganic AZO, resulting in the improvement of the performance of CZA film. In compared with the controlled cellulose/AZO (CA) film with 365 Ω/sq sheet resistance and 87% transmittance, this CZA film featured a low conductive sheet resistance of 115 Ω/sq and high transmittance of 89%, as well as low roughness of 1.85 nm Moreover, the existence of conducive ZnO buffer layer enabled the conductivity of CZA film to be stable under the bending treatment. Herein, a flexible electronic device was successfully prepared with the biomass materials, which would be available by a roll-to-roll production process.
Original languageEnglish
Article number117820
JournalCarbohydrate Polymers
Volume260
Early online date16 Feb 2021
DOIs
Publication statusE-pub ahead of print - 16 Feb 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • cellulose
  • conductive film
  • ZnO buffer layer
  • flexible electronic device

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