Novel tube-type LTCC transducers with buried heaters and inner interdigitated electrodes as a platform for gas sensing at various high temperatures

Brandenburg, Annica; Kita, Jarosław; Groß, Andrea; Moos, Ralf

doi:10.1016/j.snb.2012.12.119

Cited by 23 publications

(17 citation statements)

References 29 publications

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“…Since the chemical equilibrium is strongly affected by temperature, it is possible that the same sensitive device can act like a gas dosimeter at low temperatures, while at higher temperatures it shows the typical concentration-related gas sensor behavior (Reyes et al, 2006;Andringa et al, 2012). Brandenburg et al, 2013 demonstrate this temperature-dependent behavior for a sensitive layer of a carbonate-based NO x storage material. The sensor shown in Fig.…”

Section: Influencing Factorsmentioning

confidence: 94%

“…Dependent on the interaction between the sorbent and the analyte, different regeneration procedures are effective to recover the sorption capacity as well as the sensor signal. They include thermal decomposition at elevated temperatures (Katayama et al, 2004;Helwig et al, 2008;Kubinski and Visser, 2008;Brunet et al, 2008;Brandenburg et al, 2013;Groß et al, 2013a), chemical reactions, e.g., by a changed gas atmosphere (Helwig et al, 2007(Helwig et al, , 2008Groß et al, 2012a) or optical-induced desorption, e.g., by UV light (Li et al, 2003;Helwig et al, 2008).…”

Section: Direct Amount and Indirect Concentration Detectionmentioning

confidence: 99%

“…The enhanced interface between the gas phase and the sorbent also enables integrating sensing properties with linear characteristics concerning the volumerelated amount. The buried heater structure allows a uniform and adjustable temperature distribution in the sensitive layer as well as periodic switching between the sorption and the regeneration temperature (Brandenburg et al, 2013).…”

Section: Dosimeter Setup Configurationsmentioning

confidence: 99%

“…2, the temperature strongly influences the gas sensing behavior (Reyes et al, 2006;Andringa et al, 2012;Shu et al, 2012;Brandenburg et al, 2013;Groß et al, 2013a). Since conventional gas sensors are mostly based on metal oxides as sensitive layer and these materials are known to be able to adsorb gases, e.g., SO 2 (Mathieu et al, 2013), they might be suitable for applications in a gas dosimeter under modified operation conditions.…”

Section: Suitable Materials For Accumulating Gas Sensorsmentioning

confidence: 99%

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Overview on conductometric solid-state gas dosimeters

Marr

Groß²,

Moos

2014

J. Sens. Sens. Syst.

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Abstract. The aim of this article is to introduce the operation principles of conductometric solid-state dosimeter-type gas sensors, which have found increased attention in the past few years, and to give a literature overview on promising materials for this purpose. Contrary to common gas sensors, gas dosimeters are suitable for directly detecting the dose (also called amount or cumulated or integrated exposure of analyte gases) rather than the actual analyte concentration. Therefore, gas dosimeters are especially suited for low level applications with the main interest on mean values. The applied materials are able to change their electrical properties by selective accumulation of analyte molecules in the sensitive layer. The accumulating or dosimeter-type sensing principle is a promising method for reliable, fast, and long-term detection of low analyte levels. In contrast to common gas sensors, few devices relying on the accumulation principle are described in the literature. Most of the dosimeter-type devices are optical, mass sensitive (quartz microbalance/QMB, surface acoustic wave/SAW), or field-effect transistors. The prevalent focus of this article is, however, on solid-state gas dosimeters that allow a direct readout by measuring the conductance or the impedance, which are both based on materials that change (selectively in ideal materials) their conductivity or dielectric properties with gas loading. This overview also includes different operation modes for the accumulative sensing principle and its unique features.

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Section: Influencing Factorsmentioning

confidence: 94%

Section: Direct Amount and Indirect Concentration Detectionmentioning

confidence: 99%

Section: Dosimeter Setup Configurationsmentioning

confidence: 99%

Section: Suitable Materials For Accumulating Gas Sensorsmentioning

confidence: 99%

See 2 more Smart Citations

Overview on conductometric solid-state gas dosimeters

Marr

Groß²,

Moos

2014

J. Sens. Sens. Syst.

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“…As it was noticed that the time constant of the system depends strongly on the mass of the cuvette, a lighter cuvette, made of wrapped and laminated LTCC tapes with an integral heater, was produced according to Brandenburg et al (2013) for final experiments (see at the end).…”

Section: Tests Of the Single Sensor Disc And The Complete Sensormentioning

confidence: 99%

First steps to develop a sensor for a Tian–Calvet calorimeter with increased sensitivity

Schubert

Gollner²,

Kita

et al. 2016

J. Sens. Sens. Syst.

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Abstract. Initial steps to apply a ceramic multi-layer technique to build a new sensor for a Tian-Calvet calorimeter are presented in this contribution. The new sensor has a stacked design of ceramic sensor discs and insulating rings. The development was finite-element method (FEM) supported to design the sensor disc. In the next step, the function of the sensor disc was proven up to a temperature of 600 • C. Finally, the entire stack was tested at room temperature, delivering a resolution of 5 µW and a maximum sensitivity of 8.5 µV mW −1 . The time constant is strongly dependent on the mass of the cuvette. We show that the time constant of the sensor can be more exactly characterized when using a novel low temperature co-fired ceramic (LTCC) cuvette with a low mass and an integrated heater. Then, the time constant can be reduced to T 1/e = 118 s. The new sensor shows similar specifications as commercial devices and presents a good starting point for future high temperature applications.

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