In this paper we present a study of transport properties modification of Single-Wall Carbon Nanotubes (SWNT) interacting with the most common used alkali metals. We report resistivity measurements of SWNT mats as a function of Na, K, Cs and Li doping. Our results show that as alkali exposure increases, the doped sample resistance decreases, denoting a progressive sample metallization. Furthermore, the resistivity depends upon the deposited alkali species. We hypothesize that both atomic radius and specific conductivity of doping species can affect the transport properties.

Transport Properties of Alkali-Doped Single-Wall Carbon Nanotube Mats

BONANNO, Assunta Carmela;XU, Fang
2009-01-01

Abstract

In this paper we present a study of transport properties modification of Single-Wall Carbon Nanotubes (SWNT) interacting with the most common used alkali metals. We report resistivity measurements of SWNT mats as a function of Na, K, Cs and Li doping. Our results show that as alkali exposure increases, the doped sample resistance decreases, denoting a progressive sample metallization. Furthermore, the resistivity depends upon the deposited alkali species. We hypothesize that both atomic radius and specific conductivity of doping species can affect the transport properties.
2009
Carbon Nanotubes
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/122648
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