Highly sensitive NH 3 detection based on organic field-effect transistors with tris(pentafluorophenyl)borane as receptor

Weiguo Huang; Kalpana Besar; Rachel Lecover; Ana María Rule; Patrick N. Breysse; Howard E. Katz

doi:10.1021/ja305287p

Highly sensitive NH ₃ detection based on organic field-effect transistors with tris(pentafluorophenyl)borane as receptor

Weiguo Huang, Kalpana Besar, Rachel Lecover, Ana María Rule, Patrick N. Breysse, Howard E. Katz

Bloomberg School of Public Health

Research output: Contribution to journal › Article › peer-review

95 Scopus citations

Abstract

We have increased organic field-effect transistor (OFET) NH ₃ response using tris(pentafluorophenyl)borane (TPFB) as a receptor. OFETs with this additive could detect concentrations of 450 ppb v/v, with a limit of detection of 350 ppb, the highest sensitivity reported to date for semiconductor films; in comparison, when triphenylmethane (TPM) or triphenylborane (TFB) was used as an additive, no obvious improvement in the sensitivity was observed. These OFETs also showed considerable selectivity with respect to common organic vapors and stability toward storage. Furthermore, excellent memory of exposure was achieved by keeping the exposed devices in a sealed container stored at -30 °C, the first such capability demonstrated with OFETs.

Original language	English (US)
Pages (from-to)	14650-14653
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	134
Issue number	36
DOIs	https://doi.org/10.1021/ja305287p
State	Published - Sep 12 2012

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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title = "Highly sensitive NH 3 detection based on organic field-effect transistors with tris(pentafluorophenyl)borane as receptor",

abstract = "We have increased organic field-effect transistor (OFET) NH 3 response using tris(pentafluorophenyl)borane (TPFB) as a receptor. OFETs with this additive could detect concentrations of 450 ppb v/v, with a limit of detection of 350 ppb, the highest sensitivity reported to date for semiconductor films; in comparison, when triphenylmethane (TPM) or triphenylborane (TFB) was used as an additive, no obvious improvement in the sensitivity was observed. These OFETs also showed considerable selectivity with respect to common organic vapors and stability toward storage. Furthermore, excellent memory of exposure was achieved by keeping the exposed devices in a sealed container stored at -30 °C, the first such capability demonstrated with OFETs.",

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AU - Huang, Weiguo

AU - Besar, Kalpana

AU - Lecover, Rachel

AU - Rule, Ana María

AU - Breysse, Patrick N.

AU - Katz, Howard E.

PY - 2012/9/12

Y1 - 2012/9/12

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AB - We have increased organic field-effect transistor (OFET) NH 3 response using tris(pentafluorophenyl)borane (TPFB) as a receptor. OFETs with this additive could detect concentrations of 450 ppb v/v, with a limit of detection of 350 ppb, the highest sensitivity reported to date for semiconductor films; in comparison, when triphenylmethane (TPM) or triphenylborane (TFB) was used as an additive, no obvious improvement in the sensitivity was observed. These OFETs also showed considerable selectivity with respect to common organic vapors and stability toward storage. Furthermore, excellent memory of exposure was achieved by keeping the exposed devices in a sealed container stored at -30 °C, the first such capability demonstrated with OFETs.

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Highly sensitive NH ₃ detection based on organic field-effect transistors with tris(pentafluorophenyl)borane as receptor

Abstract

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