Here we present the design of an amorphous silicon photodetector integrated with an ion-exchanged waveguide on the same glass substrate in order to obtain an evanescent waveguide sensor for on-chip biomolecular recognition in Lab-on-Chip applications. We studied the behaviour of a monochromatic light in a channel waveguide and its coupling into the thin-film sensor, using COMSOL Multiphysics. Simulations show that the presence of the photodiode’s insulation layer and transparent electrode strongly affects the coupling efficiency between the waveguide and the sensor.

Design of an Evanescent Waveguide Sensor Based on a-Si:H Photodiodes for Lab-on-Chip Applications / Buzzin, Alessio; Asquini, Rita; Caputo, Domenico; de Cesare, Giampiero. - STAMPA. - 457:(2018), pp. 137-142. (Intervento presentato al convegno 19th AISEM National Conference on Sensors and Microsystems, 2017 tenutosi a Lecce - Italy nel 21 - 23 February 2017) [10.1007/978-3-319-66802-4_19].

Design of an Evanescent Waveguide Sensor Based on a-Si:H Photodiodes for Lab-on-Chip Applications

Buzzin, Alessio;Asquini, Rita
;
Caputo, Domenico;de Cesare, Giampiero
2018

Abstract

Here we present the design of an amorphous silicon photodetector integrated with an ion-exchanged waveguide on the same glass substrate in order to obtain an evanescent waveguide sensor for on-chip biomolecular recognition in Lab-on-Chip applications. We studied the behaviour of a monochromatic light in a channel waveguide and its coupling into the thin-film sensor, using COMSOL Multiphysics. Simulations show that the presence of the photodiode’s insulation layer and transparent electrode strongly affects the coupling efficiency between the waveguide and the sensor.
2018
19th AISEM National Conference on Sensors and Microsystems, 2017
Amorphous silicon photodiodes; evanescent waveguide sensor; ITO; lab-on-chip; SU-8; waveguides; industrial and manufacturing engineering
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Design of an Evanescent Waveguide Sensor Based on a-Si:H Photodiodes for Lab-on-Chip Applications / Buzzin, Alessio; Asquini, Rita; Caputo, Domenico; de Cesare, Giampiero. - STAMPA. - 457:(2018), pp. 137-142. (Intervento presentato al convegno 19th AISEM National Conference on Sensors and Microsystems, 2017 tenutosi a Lecce - Italy nel 21 - 23 February 2017) [10.1007/978-3-319-66802-4_19].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1033549
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