Vertically Aligned Few-Layered Graphene-Based Non-Cryogenic Bolometer

Anil Yadav, Saba Mehsar Khan, Anirban Kundu, Navneet Soin, Renu Rani, James McLaughlin, Devi Shankar Misra, Kiran Hazra

Research output: Contribution to journalArticle

Abstract

In this study, we report the photoresponse of vertically aligned few-layered graphene (VAG) upon infra-red (IR) irradiation at room temperature. Four probe
measurements showed the current–voltage (I–V) characteristic of electrical switching during pulsed IR irradiation. The photoresponse reported here for VAG was significantly higher than that reported for carbon nanotube (CNT) samples. Our investigation shows that such a photoresponse arose solely from the
bolometric effect, where the conductivity changed with temperature. The resistance magnitude of the VAGs increased ~two fold for each 6 °C increase in temperature. Also, the Thermal Coefficient of Resistance (TCR) in this region was ~11%/K, which is the highest TCR value reported for any carbon nanomaterial.
LanguageEnglish
JournalC- Journal of Carbon Research
Volume5
Issue number2
DOIs
Publication statusPublished - 2 May 2019

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Bolometers
Graphite
Irradiation
Infrared radiation
Carbon Nanotubes
Nanostructured materials
Temperature
Carbon
Electric potential
Hot Temperature

Cite this

Yadav, Anil ; Khan, Saba Mehsar ; Kundu, Anirban ; Soin, Navneet ; Rani, Renu ; McLaughlin, James ; Misra, Devi Shankar ; Hazra, Kiran. / Vertically Aligned Few-Layered Graphene-Based Non-Cryogenic Bolometer. 2019 ; Vol. 5, No. 2.
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Yadav, A, Khan, SM, Kundu, A, Soin, N, Rani, R, McLaughlin, J, Misra, DS & Hazra, K 2019, 'Vertically Aligned Few-Layered Graphene-Based Non-Cryogenic Bolometer', vol. 5, no. 2. https://doi.org/10.3390/c5020023

Vertically Aligned Few-Layered Graphene-Based Non-Cryogenic Bolometer. / Yadav, Anil; Khan, Saba Mehsar; Kundu, Anirban; Soin, Navneet; Rani, Renu; McLaughlin, James; Misra, Devi Shankar; Hazra, Kiran.

Vol. 5, No. 2, 02.05.2019.

Research output: Contribution to journalArticle

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AU - Yadav, Anil

AU - Khan, Saba Mehsar

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AU - Rani, Renu

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AU - Hazra, Kiran

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