We report on a new photodetector fabricated using carbon nanostructures grown on a silicon substrate. This device exhibits low noise, a good conversion efficiency of photons into electrical current and a good signal linearity in a wide range of radiation wavelengths ranging from ultraviolet to infrared at room temperature. The maximum quantum efficiency of 37% at 880 nm has been measured without signal amplification. Such innovative devices can be easily produced on large scales by Chemical Vapour Deposition (CVD) through a relatively inexpensive chemical process, which allows large sensitive areas from a few mm2 up to hundreds of cm2 to be covered.
Innovative carbon nanotube–silicon large area photodetector / Ambrosio, Antonio; Carla, Aramo; Roberto, Battiston; Paola, Castrucci; Marco, Cilmo; Maurizio De, Crescenzi; Emanuele, Fiandrini; Valentina, Grossi; Guarino, Fausto; Maddalena, Pasqualino; Eugenio, Nappi; Maurizio, Passacantando; Giorgio, Pignatel; Sandro, Santucci; Manuela, Scarselli; Andrea, Tinti; Antonio, Valentini; Michelangelo, Ambrosio. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 7:8013(2012), pp. 1-01. [10.1088/1748-0221/7/08/P08013]
Innovative carbon nanotube–silicon large area photodetector
AMBROSIO, ANTONIO;GUARINO, FAUSTO;MADDALENA, PASQUALINO;
2012
Abstract
We report on a new photodetector fabricated using carbon nanostructures grown on a silicon substrate. This device exhibits low noise, a good conversion efficiency of photons into electrical current and a good signal linearity in a wide range of radiation wavelengths ranging from ultraviolet to infrared at room temperature. The maximum quantum efficiency of 37% at 880 nm has been measured without signal amplification. Such innovative devices can be easily produced on large scales by Chemical Vapour Deposition (CVD) through a relatively inexpensive chemical process, which allows large sensitive areas from a few mm2 up to hundreds of cm2 to be covered.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
