Electrical characterization of single-walled carbon nanotube (SWCNT) microbolometers

Authors

Maranatha del Moro Andalis ⋅ PH Department of Physical Sciences, University of the Philippines Baguio
Yuki Kuhawara ⋅ JP Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology
Gail Tolentino ⋅ PH Department of Physical Sciences, University of the Philippines Baguio
Ralph Adrian Paragas ⋅ PH Department of Physical Sciences, University of the Philippines Baguio
May Angelu Madarang ⋅ PH Department of Physical Sciences, University of the Philippines Baguio
Mark Ilasin ⋅ PH Department of Physical Sciences, University of the Philippines Baguio
Takeshi Saito ⋅ PH Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology
Ian Jasper Agulo ⋅ PH Department of Physical Sciences, University of the Philippines Baguio https://orcid.org/0000-0003-0745-9300

Abstract

A single-walled carbon nanotube (SWCNT)-based microbolometer was fabricated. The bolometer temperature coefficient of resistance (TCR) was obtained by measuring current-voltage (IV) characteristics from 20°C to 100°C using a four-point probe measurement set-up. The responsivity and the time constant were measured by applying an AC voltage from 1 Hz to 10 MHz and determining the output voltage over the given frequencies. The measured TCR was -1.1 %/K. A very high responsivity and extremely fast time constant were 49.9 kV/W and 400 ns, respectively. We attribute the very good performance of our microbolometer to the semiconducting nature of SWCNT, the low thermal conductance of the oxide layer, and the geometry of the electrodes.

Downloads

Issue

2018: Proceedings of the 36th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2018-1G-06

Section

Condensed Matter Physics and Materials Science

Published

2018-05-25

How to Cite

[1]

M del M Andalis, Y Kuhawara, G Tolentino, RA Paragas, MA Madarang, M Ilasin, T Saito, and IJ Agulo, Electrical characterization of single-walled carbon nanotube (SWCNT) microbolometers, Proceedings of the Samahang Pisika ng Pilipinas 36, SPP-2018-1G-06 (2018). URL: https://proceedings.spp-online.org/article/view/SPP-2018-1G-06.