Bioinspired Transparent Laminated Composite Film for Flexible Green Optoelectronics

Daewon Lee, Young Woo Lim, Hyeon Gyun Im, Seonju Jeong, Sangyoon Ji, Yong Ho Kim, Gwang Mun Choi, Jang Ung Park, Jung Yong Lee, Jungho Jin, Byeong Soo Bae

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


Herein, we report a new version of a bioinspired chitin nanofiber (ChNF) transparent laminated composite film (HCLaminate) made of siloxane hybrid materials (hybrimers) reinforced with ChNFs, which mimics the nanofiber-matrix structure of hierarchical biocomposites. Our HCLaminate is produced via vacuum bag compressing and subsequent UV-curing of the matrix resin-impregnated ChNF transparent paper (ChNF paper). It is worthwhile to note that this new type of ChNF-based transparent substrate film retains the strengths of the original ChNF paper and compensates for ChNF paper's drawbacks as a flexible transparent substrate. As a result, compared with high-performance synthetic plastic films, such as poly(ethylene terephthalate), poly(ether sulfone), poly(ethylene naphthalate), and polyimide, our HCLaminate is characterized to exhibit extremely smooth surface topography, outstanding optical clarity, high elastic modulus, high dimensional stability, etc. To prove our HCLaminate as a substrate film, we use it to fabricate flexible perovskite solar cells and a touch-screen panel. As far as we know, this work is the first to demonstrate flexible optoelectronics, such as flexible perovskite solar cells and a touch-screen panel, actually fabricated on a composite film made of ChNF. Given its desirable macroscopic properties, we envision our HCLaminate being utilized as a transparent substrate film for flexible green optoelectronics.

Original languageEnglish
Pages (from-to)24161-24168
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number28
Publication statusPublished - 2017 Jul 19

Bibliographical note

Funding Information:
This work was supported by the Wearable Platform Materials Technology Center (WMC) funded by the National Research Foundation of Korea (NRF) Grant of the Korean Government (MSIP) (NRF-2016R1A5A1009926), a grant from the Korea Evaluation Institute of Industrial Technology (10051337) the National Research Foundation of Korea (NRF) (NRF-2014R1A1A1038415) the KDRC support program for the development of future devices technology for display industry (10052105), and the Ministry of Trade Industry & Energy (MOTIE) (10065101).

Publisher Copyright:
© 2017 American Chemical Society.

All Science Journal Classification (ASJC) codes

  • Materials Science(all)


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