The I–V characteristics of Mesoporous Silicon (mesoPS) samples have been studied both in vacuum and in presence of NO2 traces. By the use of different electrode configurations, the longitudinal (parallel to the sample surface) and transverse (perpendicular to the sample surface) components of the electrical conduc- tance have been independently measured and compared. We show that the electrical response of mesoPS to NO2 is anisotropic, and that the best sensing performance is achieved by monitoring the longitudinal conductance variation.
Anisotropic electrical response of mesoporous silicon to NO2 / Borini, S; Boarino, Luca; Amato, Giampiero. - In: PHYSICA STATUS SOLIDI. A, APPLICATIONS AND MATERIALS SCIENCE. - ISSN 1862-6300. - 204:5(2007), pp. 1408-1411. [10.1002/pssa.200674367]
Anisotropic electrical response of mesoporous silicon to NO2
BOARINO, LUCA;AMATO, GIAMPIERO
2007
Abstract
The I–V characteristics of Mesoporous Silicon (mesoPS) samples have been studied both in vacuum and in presence of NO2 traces. By the use of different electrode configurations, the longitudinal (parallel to the sample surface) and transverse (perpendicular to the sample surface) components of the electrical conduc- tance have been independently measured and compared. We show that the electrical response of mesoPS to NO2 is anisotropic, and that the best sensing performance is achieved by monitoring the longitudinal conductance variation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
