It has been demonstrated from various author* that a Si Carbon Nanotube heterojunction can he obtained by growing MultiWall Carbon nanotubcs (MWCVT) over a silicon substrate The electron transport characteristics of hybrid Si-CNT structures have been also largely investigated. Among the wide spectrum of nanotube characteristics, an important rule is determined by their capability to absorb light quanta creating a couple election-bole that can be separated applying an external electric field. A few mm 2 nanotube layers contains an extremely large number of active element! that can convert incident light into electrons and generate an electrical signal both in case of pulsed light and of continuous radiation. This opens the way to the use of MWCNT for realizing a new kind of radiation detector to be used both Tor high energy and spatial physics and for sensor applications. In this paper we report on a new detector device realized using MWCNT growth over a silicon substrate. This device presents peculiar characteristics, low noise, good conversion efficiency of photons into electrical current and good signal linearity in a wide range of radiation wavelength from UV to IR at room temperature. The spectral behaviour reflects the silicon spectral range with a maximum at about 880 nm.

Aramo, C., Ambrosio, A., Ambrosio, M., Cilmo, M., Guarino, F., Maddalcna, P., et al. (2012). Recent results in silicon-cnt photodetectors. In Astroparticle, Particle, Space Physics and Detectors for Physics Applications - Proceedings of the 13th ICATPP Conference (pp.822-828).

Recent results in silicon-cnt photodetectors

Ambrosio, M.;Valentini, A.;Castrucci, P.;Scarselli, M.
2012-01-01

Abstract

It has been demonstrated from various author* that a Si Carbon Nanotube heterojunction can he obtained by growing MultiWall Carbon nanotubcs (MWCVT) over a silicon substrate The electron transport characteristics of hybrid Si-CNT structures have been also largely investigated. Among the wide spectrum of nanotube characteristics, an important rule is determined by their capability to absorb light quanta creating a couple election-bole that can be separated applying an external electric field. A few mm 2 nanotube layers contains an extremely large number of active element! that can convert incident light into electrons and generate an electrical signal both in case of pulsed light and of continuous radiation. This opens the way to the use of MWCNT for realizing a new kind of radiation detector to be used both Tor high energy and spatial physics and for sensor applications. In this paper we report on a new detector device realized using MWCNT growth over a silicon substrate. This device presents peculiar characteristics, low noise, good conversion efficiency of photons into electrical current and good signal linearity in a wide range of radiation wavelength from UV to IR at room temperature. The spectral behaviour reflects the silicon spectral range with a maximum at about 880 nm.
13th International Conference on Advanced Technology and Particle Physics, ICATPP 2011
Como, ita
2011
Rilevanza internazionale
2012
Settore FIS/01 - FISICA SPERIMENTALE
Settore FIS/03 - FISICA DELLA MATERIA
English
Astronomy and Astrophysics; Nuclear and High Energy Physics
Intervento a convegno
Aramo, C., Ambrosio, A., Ambrosio, M., Cilmo, M., Guarino, F., Maddalcna, P., et al. (2012). Recent results in silicon-cnt photodetectors. In Astroparticle, Particle, Space Physics and Detectors for Physics Applications - Proceedings of the 13th ICATPP Conference (pp.822-828).
Aramo, C; Ambrosio, A; Ambrosio, M; Cilmo, M; Guarino, F; Maddalcna, P; Grossi, V; Pussacantando, M; Sanlucci, S; Nappi, F; Tinti, A; Valentini, A; Fi...espandi
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/213432
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 1
social impact