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Optical and Electronic NO(x) Sensors for Applications in Mechatronics.

Di Franco C, Elia A, Spagnolo V, Scamarcio G, Lugarà PM, Ieva E, Cioffi N, Torsi L, Bruno G, Losurdo M, Garcia MA, Wolter SD, Brown A, Ricco M - Sensors (Basel) (2009)

Bottom Line: In view of their potential applications in mechatronics, we compared the performance of: i) Quantum cascade lasers (QCL) based photoacoustic (PA) systems; ii) gold nanoparticles as catalytically active materials in field-effect transistor (FET) sensors, and iii) functionalized III-V semiconductor based devices.Electrochemically synthesized gold-nanoparticle FET sensors are able to monitor NO(x) in a concentration range from 50 to 200 parts per million and are suitable for miniaturization.Porphyrin-functionalized III-V semiconductor materials can be used for the fabrication of a reliable NO(x) sensor platform characterized by high conductivity, corrosion resistance, and strong surface state coupling.

View Article: PubMed Central - PubMed

Affiliation: CNR-INFM Regional Laboratory LIT3, via Amendola 173, 70126 Bari, Italy; E-Mails: angela.elia@fisica.uniba.it (A.E.); spagnolo@fisica.uniba.it (V.S.); scamarcio@fisica.uniba.it (G.S.); lugara@fisica.uniba.it (P.M.L.).

ABSTRACT
Current production and emerging NO(x) sensors based on optical and nanomaterials technologies are reviewed. In view of their potential applications in mechatronics, we compared the performance of: i) Quantum cascade lasers (QCL) based photoacoustic (PA) systems; ii) gold nanoparticles as catalytically active materials in field-effect transistor (FET) sensors, and iii) functionalized III-V semiconductor based devices. QCL-based PA sensors for NO(x) show a detection limit in the sub part-per-million range and are characterized by high selectivity and compact set-up. Electrochemically synthesized gold-nanoparticle FET sensors are able to monitor NO(x) in a concentration range from 50 to 200 parts per million and are suitable for miniaturization. Porphyrin-functionalized III-V semiconductor materials can be used for the fabrication of a reliable NO(x) sensor platform characterized by high conductivity, corrosion resistance, and strong surface state coupling.

No MeSH data available.


Schematic diagram of the photoacoustic sensor.
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f2-sensors-09-03337: Schematic diagram of the photoacoustic sensor.

Mentions: The PA sensor consists of a resonant photoacoustic cell, an amplitude modulated single mode QCL and a signal acquisition and processing equipment. Figure 2 shows a schematic diagram of the trace gas sensor.


Optical and Electronic NO(x) Sensors for Applications in Mechatronics.

Di Franco C, Elia A, Spagnolo V, Scamarcio G, Lugarà PM, Ieva E, Cioffi N, Torsi L, Bruno G, Losurdo M, Garcia MA, Wolter SD, Brown A, Ricco M - Sensors (Basel) (2009)

Schematic diagram of the photoacoustic sensor.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3297121&req=5

f2-sensors-09-03337: Schematic diagram of the photoacoustic sensor.
Mentions: The PA sensor consists of a resonant photoacoustic cell, an amplitude modulated single mode QCL and a signal acquisition and processing equipment. Figure 2 shows a schematic diagram of the trace gas sensor.

Bottom Line: In view of their potential applications in mechatronics, we compared the performance of: i) Quantum cascade lasers (QCL) based photoacoustic (PA) systems; ii) gold nanoparticles as catalytically active materials in field-effect transistor (FET) sensors, and iii) functionalized III-V semiconductor based devices.Electrochemically synthesized gold-nanoparticle FET sensors are able to monitor NO(x) in a concentration range from 50 to 200 parts per million and are suitable for miniaturization.Porphyrin-functionalized III-V semiconductor materials can be used for the fabrication of a reliable NO(x) sensor platform characterized by high conductivity, corrosion resistance, and strong surface state coupling.

View Article: PubMed Central - PubMed

Affiliation: CNR-INFM Regional Laboratory LIT3, via Amendola 173, 70126 Bari, Italy; E-Mails: angela.elia@fisica.uniba.it (A.E.); spagnolo@fisica.uniba.it (V.S.); scamarcio@fisica.uniba.it (G.S.); lugara@fisica.uniba.it (P.M.L.).

ABSTRACT
Current production and emerging NO(x) sensors based on optical and nanomaterials technologies are reviewed. In view of their potential applications in mechatronics, we compared the performance of: i) Quantum cascade lasers (QCL) based photoacoustic (PA) systems; ii) gold nanoparticles as catalytically active materials in field-effect transistor (FET) sensors, and iii) functionalized III-V semiconductor based devices. QCL-based PA sensors for NO(x) show a detection limit in the sub part-per-million range and are characterized by high selectivity and compact set-up. Electrochemically synthesized gold-nanoparticle FET sensors are able to monitor NO(x) in a concentration range from 50 to 200 parts per million and are suitable for miniaturization. Porphyrin-functionalized III-V semiconductor materials can be used for the fabrication of a reliable NO(x) sensor platform characterized by high conductivity, corrosion resistance, and strong surface state coupling.

No MeSH data available.