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Trends in the development of solid state amperometric and potentiometric high temperature sensors

solid state IONICS 2000年第137期136卷 519-531页

作者： Göpel, W Reinhardt, G Rösch, M Univ Tubingen Inst Phys & Theoret Chem D-72076 Tubingen Germany Univ Tubingen Steinbeis Transfer Ctr Interface Anal & Sensors D-72076 Tubingen Germany

High temperature sensors based on solid electrolytes are well established in many applications. In this context. stabilized zirconia as an oxygen ion conductor plays the key role to monitor oxygen. Recent trends in the use of stabilized zirconia aim at the detection of other exhaust or environmental gases like NOx, CO or hydrocarbons. This is possible by, e.g. monitoring currents of specific electrode reactions at a given voltage ('amperometric devices') or monitoring voltages between different electrodes which result from specific electrode reactions including the kinetically determined formation of surface oxygen during different catalytic reactions ['mixed-potential (non-Nernstian) devices']. In all applications, the catalytic and electrochemical properties of the electrode materials play a key role for achieving reproducible sensor signals. This requires controlled microstructures down to the atomic scale. Therefore, extensive work now focuses on the structural as well as functional optimization of known, and on the development of new electrode materials. In this promising trend particular emphasis is put on the in-situ spectroscopic and microscopic characterization of the various interfaces under sensor operation conditions. (C) 2000 Elsevier Science B.V. All rights reserved.

关键词： stabilized zirconia amperometric sensors potentiometric sensors mixed potentials sensor arrays multi-component analysis interface analysis in-situ spectroscopy

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development OF solid-state ELECTROCHEMICAL sensorS FOR HIGH-TEMPERATURE applications

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solid state IONICS 1988年第Part2期28卷 1668-1672页

作者： LIU, QG WORRELL, WL UNIV PENN DEPT MAT SCI & ENGNPHILADELPHIAPA 19104

Three solid-state electrochemical sensors have been developed in our laboratory for high-temperature applications. They are a new compact oxygen sensor for steelmaking processes, a two-phase sulfate electrolyte sensor for measurements of SO2 and SO3 pressures and an oxysulfide-electrolyte sensor for sulfur measurements in molten iron. In this paper, our approaches for the development of new sensors are summarized.

关键词： sensors

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Cross-sensitivity evaluation of chemical sensors for electronic tongue: determination of heavy metal ions

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sensorS AND ACTUATORS B-CHEMICAL 1997年第1-3期44卷 532-537页

作者： Vlasov, Y Legin, A Rudnitskaya, A St Petersburg State Univ Dept Chem St Petersburg 199034 Russia

The development of the promising new field of sensor applications, multisensor arrays for liquid analysis based on the principles of the electronic tongue, implies some new demands on sensor material research and development. Stable and reproducible sensors with partial specificity and considerable cross-sensitivities to different components in solutions are of primary interest. solid-state potentiometric sensors, both crystalline and vitreous, are likely to be thr most promising ones for multisensor devices designed for long-term analytical application in natural and artificial complex media. The present paper deals with development or a method of evaluation of integral heavy metal cation sensitivity of solid-state sensors with special consideration of cross-sensitivity features. The method involves a comparative study of different sensor materials in individual component solutions using several criteria based on integral response parameters. The procedure scheme call be applied to evaluate cross-sensitivity of ally kind of potentiometric sensors for liquid media. (C) 1997 Elsevier Science S.A.

关键词： cross-sensitivity liquid media chemical sensors multisensor arrays

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A new generation of scientific CCD sensors

A new generation of scientific CCD sensors

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conference on solid state sensor arrays - development and applications

作者： Heyes, PS Pool, PJ Holtom, R EEV Ltd Solid State Imaging 106 Waterhouse Lane Chelmsford Essex CM1 2QU United Kingdom

ISBN: (纸本)0819424307

The design of scientific image sensors has not progressed as rapidly as developments in the technology could have permitted. This has been a consequence of an incorrect perception by manufacturers that the scientific market was insufficiently large to justify the required investment which, in turn, has lead to the use by many scientific customers of 'do-it-yourself design and foundry solutions to their imaging needs. This paper will introduce the basic features of the new generation image sensor and will describe the design of these devices.

关键词： CCD sensor array back-thinning anti-blooming inverted mode operation (IMO) quantum efficiency (QE) astronomy

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Prototype of 2D direct x-ray a-SiN:H sensor array

Prototype of 2D direct x-ray a-SiN:H sensor array

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conference on solid state sensor arrays - development and applications II

作者： Popov, IA Van Doorselaer, G Van Calster, A De Smet, H Callens, F Boesman, E State Univ Ghent B-9000 Ghent Belgium

ISBN: (纸本)0819427411

Study of the possible use of a-SIN: H thin films for 2D direct x-ray sensor arrays lead to the development of simple prototype. The sensor array is a 100x100 array of simple cross-over silicon rich a-SiN:H thin film diodes with sizes 200x200 mu m formed on a 2" glass substrate. There are neither switching elements nor x-ray conversion layer involved which leads to extremely simple 2 mask processing for the whole array. Specific behavior of the a-SiN:H sensing diodes under x-ray irradiation requires special attention to be paid to the driving strategy and read out electronics.

关键词： amorphous silicon active matrix TFD x-ray sensor

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New piezoceramic PZT-PNN material for medical diagnostics applications

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JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 2001年第10-11期21卷 1469-1472页

作者： Bove, T Wolny, W Ringgaard, E Pedersen, A Ferroperm Piezoceram AS DK-3490 Kvistgaard Denmark

The development of a new piezoceramic material, Ferroperm. Pz21, optimised for use in medical diagnostics applications is described. The requirements to such a material are very high permittivity, sensitivity and coupling factors, and at the same time a relatively high Curie temperature. The structure must furthermore be very dense and fine-grained, since dicing of small sub-elements for medical arrays must be performed without damaging the material. The developed material is a solid solution between a PZT phase and the relaxor phase Pb(Ni1/3Nb2/3)O-3. A comparison between different production processes is given, and a new solid state route for production of very dense and fine-grained materials is presented. Very positive characteristics are generally observed, and a stable behaviour even at elevated temperatures indicate that the material can find applications not only in the medical market, but also as a more general sensor/actuator. (C) 2001 Elsevier Science Ltd. All rights reserved.

关键词： functional applications perovskites piezoelectric properties powders : solid state reaction PZT

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Contact-type color image sensor using three LED switching method

Contact-type color image sensor using three LED switching me...

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conference on solid state sensor arrays - development and applications

作者： Hamaguchi, T Yamashita, H Ohta, A Matsumoto, T Saito, M Mitsubishi Electric Corp. (Japan)

ISBN: (纸本)0819424307

We have developed a new contact-type color image sensor for personal use. Three color light emitted diodes(LEDs) are used, for illuminating source of document. The photodiode MOS image sensor chips are used for the photodetector element which has superior linearity characteristic. It scans an A-size document in 25 seconds at 300 dots per inch. This color image sensor is compact and very low power, so it is most suitable to sheetfed color scanner.

关键词： image sensor light emitted diode photodiode LED switching method low power photodetector color scanner

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The color cross-talk simulation analysis for image sensor

The color cross-talk simulation analysis for image sensor

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conference on solid state sensor arrays - development and applications

作者： Yamaguchi, T Yamashita, H Ihara, H Iida, Y Ioue, I Nozaki, H ULSI Research Center Toshiba Corporation 1 Komukai Toshiba-cho Saiwai-ku Kawasaki 210 Japan

The color cross-talk simulation analysis was carried out. The color cross-talk was depended on the p-well potential profile. The color cross-talk has a minimum value around 2.3 mu m junction depth of p-well. The color... 详细信息

ISBN: (纸本)0819424307

关键词： image sensor color cross-talk photosensitivity

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A LOW-COST ION SELECTIVE NITRATE sensor BASED ON SELF-ASSEMBLED GRAPHENE MICROELECTRODE arrays 20

A LOW-COST ION SELECTIVE NITRATE SENSOR BASED ON SELF-ASSEMB...

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20th International conference on solid-state sensors, Actuators and Microsystems and Eurosensors XXXIII (TRANSDUCERS and EUROsensorS)

作者： Wang, Li Kim, Jungyoon Cui, Tianhong Beijing Inst Astronaut Syst Engn Beijing Peoples R China Univ Minnesota Dept Mech Engn 111 Church St SE Minneapolis MN 55455 USA

ISBN: (纸本)9781728120072

This paper reports a novel micro sensor which used self-assembled graphene microelectrode arrays to selectively detect nitrate solutions. Graphene microelectrode arrays were utilized to sensitively detect the change of ion density. Self-assembly technique provided an effective 3-dimensional platform for sensing applications. An ion selective ionophore film was deposited upon graphene surface to make the sensor selectively sensitive for nitrate ions. As a result, the self-assembled graphene microelectrode arrays showed superb sensing performance for pH with advantages of low cost and label free. After decorating nitrate ionophore film. the selective sensor demonstrated high sensitivity and reproducibility for nitrate ions. This simple, low-cost and selective sensor could lead to wide applications in environmental monitoring.

关键词： Nitrate sensor graphene self-assembly ion selective

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Versatile building-block architecture for large area, high performance CCD imagers

Versatile building-block architecture for large area, high p...

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conference on solid state sensor arrays - development and applications II

作者： Theuwissen, A Beenhakkers, M Dillen, B Folkerts, HO Heyns, H Korthout, L Kreider, G Opmeer, P Peek, H Roks, E Rosner, H van der Sijde, A Vledder, F Philips Imaging Technol NL-5656 AA Eindhoven Netherlands

ISBN: (纸本)0819427411

A bouwblok (building-block) concept is described which allows one to fabricate several large area CCD image sensors from a single mask set. The size of the various imagers can differ both horizontally as well as vertically. The new method drastically reduces the development time and the associated cost of a new sensor. Because all imagers use of same basic pixel structure, the characteristics of new configurations can be fairly well predicted.

关键词： CCD imagers solid-state imaging modular concept mask stitching high performance imaging digital photography

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