Broadband characterization of charge carrier transfer of hybrid graphene-deoxyribonucleic acid junctions

Chaehyun Lim; Sang Hun Lee; Youngmo Jung; Joo Hiuk Son; Jong Ho Choe; Young June Kim; Jaebin Choi; Sukang Bae; Jae Hun Kim; Robert H. Blick; Minah Seo; Chulki Kim

doi:10.1016/j.carbon.2018.01.049

Broadband characterization of charge carrier transfer of hybrid graphene-deoxyribonucleic acid junctions

Chaehyun Lim, Sang Hun Lee, Youngmo Jung, Joo Hiuk Son, Jong Ho Choe, Young June Kim, Jaebin Choi, Sukang Bae, Jae Hun Kim, Robert H. Blick, Minah Seo, Chulki Kim

Department of Physics

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The charge transfer dynamics regarding an intimate contact between graphene and single-stranded deoxyribonucleic acid (ssDNA) is investigated from DC to the THz-regime. A graphene field-effect transistor (G-FET) is immersed in ssDNA solutions where the adsorption of ssDNA is controlled in terms of absolute coverage. DC-response of the G-FET is recorded and cross-validated by observing changes in Raman spectroscopy and further investigating THz-time domain spectroscopy using a nano-slot antenna. We find very good agreement between electrical and optical approaches where the Fermi level of the ssDNA-adsorbed graphene depends on the coverage nonlinearly. The results point towards a new doping method with sub-nanoscale patterning precision on graphene and its electronic applications based on electronic junction properties.

Original language	English
Pages (from-to)	525-531
Number of pages	7
Journal	Carbon
Volume	130
DOIs	https://doi.org/10.1016/j.carbon.2018.01.049
State	Published - Apr 2018

Keywords

DNA
Fermi level
G-FET
Graphene
Terahertz

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10.1016/j.carbon.2018.01.049

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title = "Broadband characterization of charge carrier transfer of hybrid graphene-deoxyribonucleic acid junctions",

abstract = "The charge transfer dynamics regarding an intimate contact between graphene and single-stranded deoxyribonucleic acid (ssDNA) is investigated from DC to the THz-regime. A graphene field-effect transistor (G-FET) is immersed in ssDNA solutions where the adsorption of ssDNA is controlled in terms of absolute coverage. DC-response of the G-FET is recorded and cross-validated by observing changes in Raman spectroscopy and further investigating THz-time domain spectroscopy using a nano-slot antenna. We find very good agreement between electrical and optical approaches where the Fermi level of the ssDNA-adsorbed graphene depends on the coverage nonlinearly. The results point towards a new doping method with sub-nanoscale patterning precision on graphene and its electronic applications based on electronic junction properties.",

keywords = "DNA, Fermi level, G-FET, Graphene, Terahertz",

author = "Chaehyun Lim and Lee, {Sang Hun} and Youngmo Jung and Son, {Joo Hiuk} and Choe, {Jong Ho} and Kim, {Young June} and Jaebin Choi and Sukang Bae and Kim, {Jae Hun} and Blick, {Robert H.} and Minah Seo and Chulki Kim",

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doi = "10.1016/j.carbon.2018.01.049",

language = "English",

volume = "130",

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journal = "Carbon",

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T1 - Broadband characterization of charge carrier transfer of hybrid graphene-deoxyribonucleic acid junctions

AU - Lim, Chaehyun

AU - Lee, Sang Hun

AU - Jung, Youngmo

AU - Son, Joo Hiuk

AU - Choe, Jong Ho

AU - Kim, Young June

AU - Choi, Jaebin

AU - Bae, Sukang

AU - Kim, Jae Hun

AU - Blick, Robert H.

AU - Seo, Minah

AU - Kim, Chulki

PY - 2018/4

Y1 - 2018/4

N2 - The charge transfer dynamics regarding an intimate contact between graphene and single-stranded deoxyribonucleic acid (ssDNA) is investigated from DC to the THz-regime. A graphene field-effect transistor (G-FET) is immersed in ssDNA solutions where the adsorption of ssDNA is controlled in terms of absolute coverage. DC-response of the G-FET is recorded and cross-validated by observing changes in Raman spectroscopy and further investigating THz-time domain spectroscopy using a nano-slot antenna. We find very good agreement between electrical and optical approaches where the Fermi level of the ssDNA-adsorbed graphene depends on the coverage nonlinearly. The results point towards a new doping method with sub-nanoscale patterning precision on graphene and its electronic applications based on electronic junction properties.

AB - The charge transfer dynamics regarding an intimate contact between graphene and single-stranded deoxyribonucleic acid (ssDNA) is investigated from DC to the THz-regime. A graphene field-effect transistor (G-FET) is immersed in ssDNA solutions where the adsorption of ssDNA is controlled in terms of absolute coverage. DC-response of the G-FET is recorded and cross-validated by observing changes in Raman spectroscopy and further investigating THz-time domain spectroscopy using a nano-slot antenna. We find very good agreement between electrical and optical approaches where the Fermi level of the ssDNA-adsorbed graphene depends on the coverage nonlinearly. The results point towards a new doping method with sub-nanoscale patterning precision on graphene and its electronic applications based on electronic junction properties.

KW - DNA

KW - Fermi level

KW - G-FET

KW - Graphene

KW - Terahertz

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M3 - Article

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SN - 0008-6223

VL - 130

SP - 525

EP - 531

JO - Carbon

JF - Carbon

ER -

Broadband characterization of charge carrier transfer of hybrid graphene-deoxyribonucleic acid junctions

Abstract

Keywords

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