Advanced carbon nanotube/polymer composite infrared sensors |
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| Authors: | Basudev Pradhan Kristina Setyowati Jian Chen |
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| Affiliation: | a Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee, 3210 N. Cramer St., Milwaukee, WI 53211, USA
b Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA |
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| Abstract: | We demonstrate that both single-walled carbon nanotube (SWCNT) types and nanotube-matrix polymer-nanotube (CNT-P-CNT) junctions have profound impact on electro-optical properties of SWCNT/polymer composites. Composite IR sensors based on CoMoCAT®-produced SWCNTs (SWCNTsCoMoCAT) significantly outperform those based on HiPco®-produced SWCNTs (SWCNTsHiPco). Higher semiconducting nanotube concentration in a SWCNT material is critical to enhance the photo effect of IR light on SWCNT/polymer nanocomposites, whereas CNT-P-CNT junctions play a dominant role in the thermal effect of IR light on supported SWCNT/polymer composite films. |
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