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Volumn 307, Issue 5717, 2005, Pages 1942-1945

Chemical detection with a single-walled carbon nanotube capacitor

Author keywords

[No Author keywords available]

Indexed keywords

CAPACITANCE; CARBON NANOTUBES; CHEMICAL SENSORS; ELECTRIC FIELDS; ELECTRODES; POLARIZATION; SORPTION;

EID: 15544374415     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1109128     Document Type: Article
Times cited : (888)

References (29)
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  • 26
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    • note
    • Charge transfer from an analyte can potentially cause a capacitance response by changing the quantum capacitance of the nanotubes. We have simulated this chemical doping effect by applying to the substrate a small dc offset to the ac bias, which increases the charge in the SWNTs. By measuring the resulting capacitance and resistance responses, we calibrated the effect of a charge offset. For the vapors we have tested, most do not produce a measurable resistance response, and those that do, produce a resistance change that is much too small (based on this calibration) to account for the change in capacitance.
  • 27
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    • note
    • For an example, see the supplementary data available at Science Online.
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    • note
    • We gratefully acknowledge financial support from the Homeland Security Advanced Research Projects Administration, the Office of Naval Research, and the Naval Research Laboratory Nanoscience Institute.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.