4.8 Article

Large-Scale Assembly of Peptide-Based Hierarchical Nanostructures and Their Antiferroelectric Properties

期刊

SMALL
卷 16, 期 45, 页码 -

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202003986

关键词

aldehyde detection; antiferroelectric devices; diphenylalanine; hierarchical nanostructures; self-assembled nanostructures

资金

  1. Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2020R1A6A1A03043435, NRF-2019R1F1A1063020]
  2. MOTIE (Ministry of Trade, Industry and Energy) [10080633]
  3. KSRC (Korea Semiconductor Research Consortium)
  4. Korea Institute for Advancement of Technology (KIAT) - Korea Government (MOTIE) [P0012451]
  5. Priority Research Centers Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2019R1A6A1A11053838]
  6. National Research Foundation of Korea (NRF) - Korea government (MSIT) [2020R1F1A1068184]
  7. National Research Foundation of Korea [2020R1F1A1068184] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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An effective strategy is developed to create peptide-based hierarchical nanostructures through the meniscus-driven self-assembly in a large area and fabricate antiferroelectric devices based on these nanostructures for the first time. The diphenylalanine hierarchical nanostructures (FF-HNs) are self-assembled by vertically pulling a substrate from a diphenylalanine (FF) solution dissolved in a miscible solvent under precisely controlled conditions. Owing to the unique structural properties of FF nanostructures, including high crystallinity and alpha-helix structures, FF-HNs possess a net electrical dipole moment, which can be switched in an external electric field. The mass production of antiferroelectric devices based on FF-HNs can be successfully achieved by means of this biomimetic assembly technique. The devices show an evident antiferroelectric to ferroelectric transition under dark conditions, while the ferroelectricity is found to be tunable by light. Notably, it is discovered that the modulation of antiferroelectric behaviors of FF-HNs under glutaraldehyde exposure is due to the FF molecules that are transformed into cyclophenylalanine by glutaraldehyde. This work provides a stepping stone toward the mass production of self-assembled hierarchical nanostructures based on biomolecules as well as the mass fabrication of electronic devices based on biomolecular nanostructures for practical applications.

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