Mesoporous silicon exchanges electrons extensively and reversibly with adsorbed species, e.g., NO2 and NH3. Such an exchange has been reported for systems that maintain their original p or n character. In the present case, a solid, which is a p-type semiconductor in bulk, converts to a "near insulator" when nanostructured. The near insulator may adopt either a p or an n nature with electron exchange, depending on the type of adsorbed molecule

A Nearly Insulator Nanostructured Porous Silicon becomes either a p or an n-Type Semiconductor upon Gas Adsorption

CHIESA, Mario;GIAMELLO, Elio;GOBETTO, Roberto;UGLIENGO, Piero;VIALE, Alessandra
2005

Abstract

Mesoporous silicon exchanges electrons extensively and reversibly with adsorbed species, e.g., NO2 and NH3. Such an exchange has been reported for systems that maintain their original p or n character. In the present case, a solid, which is a p-type semiconductor in bulk, converts to a "near insulator" when nanostructured. The near insulator may adopt either a p or an n nature with electron exchange, depending on the type of adsorbed molecule
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ELECTRON-PARAMAGNETIC-RESONANCE; CARBON NANOTUBES; NO2; CONDUCTIVITY; SI
E. GARRONE; F. GEOBALDO; P. RIVOLO; G. AMATO; L. BOARINO; M. CHIESA; E. GIAMELLO; R. GOBETTO; P. UGLIENGO; A. VIALE
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/21510
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