Filiform nanoarchitectures consisting of arrays of highly integrated Bi nanowires in glass envelopes

Abstract

Using a modified version of the Taylor method, we show the possibility to produce glass micro-cables comprising huge amounts of Bi nanowires in glass envelopes, each nanowire being electrically isolated from the neighbouring ones. Besides, we present technological routs for the fabrication of micro-cables exhibiting filiform nanoarchitectures within domains. Etching of micro-cables in aqueous solution of HF reveals the catalytic role of bismuth. We succeeded to fabricate Ohmic contacts to arrays of Bi nanowires integrated in glass micro-cables and to measure the temperature dependence of their electrical resistance.