# Terahertz Detection by Asymmetric Dual Grating Gate Bilayer Graphene FETs with Integrated Bowtie Antenna

https://mdr.nims.go.jp/datasets/94137e4b-3692-4eca-8641-bb012cc01a81

## File

- [nanomaterials-14-00383.pdf](https://mdr.nims.go.jp/filesets/2e21275b-0dbd-44c2-be30-7bf9d14146b2/download) ([Detail](https://mdr.nims.go.jp/filesets/2e21275b-0dbd-44c2-be30-7bf9d14146b2.md))

## Id

94137e4b-3692-4eca-8641-bb012cc01a81

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T06:25:47.405790Z

## Updated at

2025-02-15T03:30:19.684228Z

## Published at

2025-02-15T03:30:19.977337Z

## Doi



## First published url

https://doi.org/10.3390/nano14040383

## Date published

2024-02-19

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Terahertz Detection by Asymmetric Dual Grating Gate Bilayer Graphene FETs
    with Integrated Bowtie Antenna
  title_type: original
  lang: en

## Description

- description: We have fabricated an asymmetric dual-grating gate bilayer graphene-based
    field effect 1 transistor (ADGG-GFET) with an integrated bowtie antenna. We characterized
    it at 4.5 K under THz 2 excitation, at different frequencies (0.15, 0.3 and 0.6
    THz). The integration of the bowtie antenna 3 allows to obtain a significant increase
    in the photocurrent response (up to 8 nA) of the device at the 4 three frequencies
    in comparison to transistors with no antenna (1 nA). The photocurrent increase
    was 5 observed for all the studied values of the bias voltage applied to both
    the top and back gates. This 6 behavior was explained as due to the creation of
    regions of different carrier types (electrons or holes) 7 and concentration profiles
    (np, pn or pp+) along the channel that are modulated by the transistor 8 biasing.
    The biasing of both back and top gates could induce an opening of the gap of the
    bilayer 9 graphene channel leading to the observed behavior of the photocurrent.
  description_type: abstract
  lang: und

## Creator

- name: E. Abidi
  role: author
- name: A. Khan
  role: author
- name: J. A. Delgado-Notario
  role: author
- name: V. Clericó
  role: author
- name: J. Calvo-Gallego
  role: author
- name: T. Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: K. Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: T. Otsuji
  role: author
- name: J. E. Velázquez
  role: author
- name: Y. M. Meziani
  role: author

## Contact agent



## Publisher

organization: MDPI AG

## Managing organization



## Keyword

- subject: Asymmetric dual-grating gate
  schema: not_defined
- subject: Terahertz detector
  schema: not_defined
- subject: photocurrent response
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nanomaterials
  issn: '20794991'
  volume: '14'
  issue: '4'
  article_number: '383'

## Conference



## Related item



## Funding

- identifier: PID2021-126483OB-I00
  funder_name: Spanish Agencia Estatal de Investigación
- identifier: PID2022-136869NB-C33
  funder_name: Spanish Agencia Estatal de Investigación
- identifier: PIC2-2021-02
  funder_name: Universidad de Salamanca Research Program
- identifier: SA121P20
  funder_name: Consejería de Educación, Junta de Castilla y León
- identifier: MFA/2022/056
  funder_name: Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital
    of the Generalitat Valenciana
- funder_name: Cooperative Research Project of the Research Institute of Electrical
    Communication, Tohoku University
- identifier: 21H04546
  funder_name: JSPS KAKENHI

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 2e21275b-0dbd-44c2-be30-7bf9d14146b2
  filename: nanomaterials-14-00383.pdf
  content_type: application/pdf
  size: 3803756
  md5: e9a331ae6f999391a02cc7f6158b0152

## Thumbnail

fileset_id: 2e21275b-0dbd-44c2-be30-7bf9d14146b2
filename: nanomaterials-14-00383.pdf