Optical pH detector based on LTCC and sol-gel technologies

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This paper presents an investigation on using sol-gel thin film as a material for sensors application in LTCC (Low Temperature Co-fired Ceramics) technology. This material gives the opportunity to make new, low-cost highly integrated optoelectronic devices. Sensors with optical detection are a significant part of these applications. They can be used for quick and safe diagnostics of some parameters. Authors present a pH detector with the optical detection system made of the LTCC material. The main part of the device is a flow channel with the chamber and sol-gel active material. The silica sol-gel with bromocresol green indicator was used. As the absorbance of sol-gel layer changes with the pH value of a measured medium, the transmitted light power was measured. The pH detector was integrated with the electronic components on the LTCC substrate.

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  • [1] Malecha K Golonka L. Microelectronics Reliability 496 (2009) 585. http://dx.doi.org/10.1016/j.microrel.2009.02.020

  • [2] Laszczyk K. Bargiel S. Gorecki Ch. Sensors and Actuators A 1631 (2010) 255. http://dx.doi.org/10.1016/j.sna.2010.06.020

  • [3] Tang D. Zhao D. Wang Y. Optik — International Journal for Light and Electron Optics 1227 (2011) 635. http://dx.doi.org/10.1016/j.ijleo.2010.02.031

  • [4] Sun D. Dong W. Wang G. Sensors and Actuators A: Physical 1201 (2005) 249. http://dx.doi.org/10.1016/j.sna.2004.11.033

  • [5] Elman N.M. Ben-yoav H. Sternheim M. Biosensors and Bioelectronics 2311 (2008) 163. http://dx.doi.org/10.1016/j.bios.2008.01.028

  • [6] Golonka L.J. Roguszczak H. Zawada T. Radojewski J. Sensors and Actuators B: Chemical 111 (2005) 396. http://dx.doi.org/10.1016/j.snb.2005.03.065

  • [7] Gupta B.D Ratnanjali Sensors and Actuators B: Chemical 802 (2003) 132. http://dx.doi.org/10.1016/S0925-4005(01)00899-1

  • [8] Chvojka T. Vrkoslav V. Jelínek I. Jindřich J. Sensors and Actuators B: Chemical 1001–2 (2004) 246. http://dx.doi.org/10.1016/j.snb.2003.12.040

  • [9] Golonka L. Bull. Polish Acad. Sci. 54(2) (2006) 223.

  • [10] Brinker J. Scherer G.W. Sol-gel science: the physics and chemistry of sol-gel processing Academic Press Inc 1990.

  • [11] Łukowiak A. Stre’k W. Journal Of Sol-Gel Science And Technology 502 (2010) 201.

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