Controlled growth of aligned α -helical-polypeptide brushes for tunable electrical conductivity

Jen Chia Wu, Chia Chun Chen, Kuei Hsien Chen, Ying Chih Chang

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Abstract

Polypeptide based molecular diode with high rectification ratio (∼122 at ±0.422 V) is formed by controlling molecular order and orientation. A film of tethered poly(γ -benzyl-L-glutamate) (PBLG) with high degree of molecular orientation was formed by solvent pair (good/bad) treatment. I-V characterization of the well aligned polypeptides showed that the rectification ratio of PBLG was sufficiently large for potential diode and transistor applications.

Original languageEnglish
Article number133304
JournalApplied Physics Letters
Volume98
Issue number13
DOIs
Publication statusPublished - 2011 Mar 28

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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