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

Dong Chen; Shibin Liu; Shimin Yin; JinTao Liang

doi:10.1117/1.OE.55.9.097104

21 September 2016 Decreasing lateral diffusion of photo-generated carriers for light-addressable potentiometric array by using meshed working electrode

Dong Chen, Shibin Liu, Shimin Yin, JinTao Liang

Author Affiliations +

Optical Engineering, Vol. 55, Issue 9, 097104 (September 2016). https://doi.org/10.1117/1.OE.55.9.097104

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.

Citation Download 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," Optical Engineering 55(9), 097104 (21 September 2016). https://doi.org/10.1117/1.OE.55.9.097104

Published: 21 September 2016

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