Materials, Photonic Devices, and Sensors

Decreasing lateral diffusion of photo-generated carriers for light-addressable potentiometric array by using meshed working electrode

[+] Author Affiliations
Dong Chen

Northwestern Polytechnical University, School of Electronics and Information, Xi’an, Shannxi 710072, China

Xi’an University of Posts and Telecommunications, School of Electronic Engineering, Xi’an, Shannxi 710121, China

ShiBin Liu

Northwestern Polytechnical University, School of Electronics and Information, Xi’an, Shannxi 710072, China

ShiMin Yin, JinTao Liang

Guilin University of Electronic Technology, School of Life and Environmental Sciences, Guilin, Guangxi 541004, China

Guilin University of Electronic Technology, Guangxi Experiment Center of Information Science, Guilin, Guangxi 541004, China

Opt. Eng. 55(9), 097104 (Sep 21, 2016). doi:10.1117/1.OE.55.9.097104
History: Received June 3, 2016; Accepted September 7, 2016
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Abstract.  Lateral diffusion of photon-generated carriers is a critical factor affecting the signal stability and spatial resolution of light-addressable potentiometric sensor (LAPS) array. LAPS with meshed working electrode for rejecting lateral diffusion is presented. Simulation shows that using meshed working electrode can resist the lateral distribution. In an experiment, the inhibition of lateral distribution and the signal stability was studied. Results showed, using the meshed working electrode, the ability to reject the lateral distribution and the signal stability is obviously enhanced. Research in this paper may help to enhance spatial resolution and detection stability of LAPS.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Dong Chen ; ShiBin Liu ; ShiMin Yin and JinTao Liang
"Decreasing lateral diffusion of photo-generated carriers for light-addressable potentiometric array by using meshed working electrode", Opt. Eng. 55(9), 097104 (Sep 21, 2016). ; http://dx.doi.org/10.1117/1.OE.55.9.097104


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