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양창덕

Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab.
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Chiral Optoelectronic Functionalities via the DNA-Organic Semiconductor Complex

Author(s)
Han, Moon JongYun, Hee SeongCho, YongjoonKim, MinkyuYang, ChangdukTsukruk, Vladimir V.Yoon, Dong Ki
Issued Date
2021-12
DOI
10.1021/acsnano.1c08641
URI
https://scholarworks.unist.ac.kr/handle/201301/55662
Fulltext
https://pubs.acs.org/doi/10.1021/acsnano.1c08641
Citation
ACS NANO, v.15, no.12, pp.20353 - 20363
Abstract
We fabricate the bio-organic field-effect transistor (BOFET) with the DNA-perylene diimide (PDI) complex, which shows unusual chiroptical and electrical functionalities. DNA is used as the chirality-inducing scaffold and the charge-injection layer. The shear-oriented film of the DNA-PDI complex shows how the large-area periodic molecular orientation and the charge transport are related, generating drastically different optoelectronic properties at each DNA/PDI concentration. The resultant BOFET reveals chiral structures with a high charge carrier mobility, photoresponsivity, and photosensitivity, reaching 3.97 cm2 V-1 s(-1), 1.18 A W-1, and 7.76 x 10(3), respectively. Interestingly, the BOFET enables the definitive response under the handedness of circularly polarized light with a high dissymmetry factor of approximately +0.14. This work highlights the natural chirality and anisotropy of DNA material and the electron conductivity of organic semiconducting molecules to be mutually used in significant chiro-optoelectronic functions as an added ability to the traditional OFET.
Publisher
AMER CHEMICAL SOC
ISSN
1936-0851
Keyword (Author)
DNAorganic semiconductorsorientationchiral optoelectronicsbio-organic field-effect transistors
Keyword
THIN-FILM TRANSISTORSCHARGE-TRANSPORTORIENTATIONSTRATEGIESMORPHOLOGYALIGNMENTPOLYMERSMOLECULEMOBILITYDESIGN

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