This work presents the development and testing of an integrated system for on-chip detection of thermochemiluminescent biomolecules. The activation energy of the reaction is provided by a transparent structure of thin film heaters deposited on one side of a glass substrate. Light, passing through the substrate, reaches an array of amorphous silicon differential structure deposited on the opposite side of the glass substrate. The structure is designed to perform differential current measurements between a light- shielded diode, whose current is sensitive only to temperature, and a photosensor, sensitive to both incident light and temperature. The device therefore balances the thermal variations of the photodiode current and reduces the dark-current noise. These features make the presented system very appealing as highly miniaturized micro-analytical devices for biosensing applications.
Integration of amorphous silicon balanced photodiodes and thin film heaters for biosensing application / Caputo, Domenico; Parisi, Emanuele; Nascetti, Augusto; Mirasoli, Mara; Nardecchia, Marco; Lovecchio, Nicola; Petrucci, Giulia; Costantini, Francesca; Roda, Aldo; DE CESARE, Giampiero. - In: PROCEDIA ENGINEERING. - ISSN 1877-7058. - STAMPA. - 168:(2016), pp. 1434-1437. (Intervento presentato al convegno 30th Eurosensors Conference, Eurosensors 2016 tenutosi a Budapest; Hungary; nel 4-7 September 2016) [10.1016/j.proeng.2016.11.408].
Integration of amorphous silicon balanced photodiodes and thin film heaters for biosensing application
CAPUTO, Domenico;NASCETTI, Augusto;NARDECCHIA, MARCO;LOVECCHIO, NICOLA;PETRUCCI, GIULIA;COSTANTINI, FRANCESCA;DE CESARE, Giampiero
2016
Abstract
This work presents the development and testing of an integrated system for on-chip detection of thermochemiluminescent biomolecules. The activation energy of the reaction is provided by a transparent structure of thin film heaters deposited on one side of a glass substrate. Light, passing through the substrate, reaches an array of amorphous silicon differential structure deposited on the opposite side of the glass substrate. The structure is designed to perform differential current measurements between a light- shielded diode, whose current is sensitive only to temperature, and a photosensor, sensitive to both incident light and temperature. The device therefore balances the thermal variations of the photodiode current and reduces the dark-current noise. These features make the presented system very appealing as highly miniaturized micro-analytical devices for biosensing applications.File | Dimensione | Formato | |
---|---|---|---|
Caputo_Integration_amorphous_2016.pdf
accesso aperto
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Creative commons
Dimensione
458.56 kB
Formato
Adobe PDF
|
458.56 kB | Adobe PDF |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.