Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper

This study aims to exploit the distinctive properties of carbon nanotube materials, which are particularly pronounced at the microscopic scale, by deploying fabrication techniques that allow their features to be observed macroscopically. Specifically, we aim to create a semiconductor device that exh...

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Main Authors: Jih-Hsin Liu, Yao-Sheng Huang
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/13/18/2497
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author Jih-Hsin Liu
Yao-Sheng Huang
author_facet Jih-Hsin Liu
Yao-Sheng Huang
author_sort Jih-Hsin Liu
collection DOAJ
description This study aims to exploit the distinctive properties of carbon nanotube materials, which are particularly pronounced at the microscopic scale, by deploying fabrication techniques that allow their features to be observed macroscopically. Specifically, we aim to create a semiconductor device that exhibits flexibility and the ability to modulate its electromagnetic wave absorption frequency by means of biasing. Initially, we fabricate a sheet of carbon nanotubes through a vacuum filtration process. Subsequently, phosphorus and boron elements are separately doped into the nanotube sheet, enabling it to embody the characteristics of a PN diode. Measurements indicate that, in addition to the fundamental diode’s current–voltage relationship, the device also demonstrates intriguing transmission properties under the TEM mode of electromagnetic waves. It exhibits a frequency shift of approximately 2.3125 GHz for each volt of bias change. The final result is a lightweight and flexible carbon-based semiconductor microwave filter, which can conform to curved surfaces. This feat underscores the potential of such materials for innovative and effective electromagnetic wave manipulation.
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spelling doaj.art-04e3f62c99e8468ba74e734d3d127f722023-11-19T12:13:46ZengMDPI AGNanomaterials2079-49912023-09-011318249710.3390/nano13182497Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube PaperJih-Hsin Liu0Yao-Sheng Huang1Department of Electrical Engineering, Tunghai University, Taichung 407, TaiwanDepartment of Electrical Engineering, Tunghai University, Taichung 407, TaiwanThis study aims to exploit the distinctive properties of carbon nanotube materials, which are particularly pronounced at the microscopic scale, by deploying fabrication techniques that allow their features to be observed macroscopically. Specifically, we aim to create a semiconductor device that exhibits flexibility and the ability to modulate its electromagnetic wave absorption frequency by means of biasing. Initially, we fabricate a sheet of carbon nanotubes through a vacuum filtration process. Subsequently, phosphorus and boron elements are separately doped into the nanotube sheet, enabling it to embody the characteristics of a PN diode. Measurements indicate that, in addition to the fundamental diode’s current–voltage relationship, the device also demonstrates intriguing transmission properties under the TEM mode of electromagnetic waves. It exhibits a frequency shift of approximately 2.3125 GHz for each volt of bias change. The final result is a lightweight and flexible carbon-based semiconductor microwave filter, which can conform to curved surfaces. This feat underscores the potential of such materials for innovative and effective electromagnetic wave manipulation.https://www.mdpi.com/2079-4991/13/18/2497carbon nanotube paperbuckypaperdiodemicrowavefilter
spellingShingle Jih-Hsin Liu
Yao-Sheng Huang
Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper
Nanomaterials
carbon nanotube paper
buckypaper
diode
microwave
filter
title Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper
title_full Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper
title_fullStr Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper
title_full_unstemmed Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper
title_short Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper
title_sort development of microwave filters with tunable frequency and flexibility using carbon nanotube paper
topic carbon nanotube paper
buckypaper
diode
microwave
filter
url https://www.mdpi.com/2079-4991/13/18/2497
work_keys_str_mv AT jihhsinliu developmentofmicrowavefilterswithtunablefrequencyandflexibilityusingcarbonnanotubepaper
AT yaoshenghuang developmentofmicrowavefilterswithtunablefrequencyandflexibilityusingcarbonnanotubepaper