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Updated: Jun 20, 2026

Seedless Growth of Bismuth Nanowire Array via Vacuum Thermal Evaporation
Published on: December 21, 2015
Transport properties of single-crystalline n-type semiconducting PbTe nanowires
So Young Jang1, Han Sung Kim, Jeunghee Park
1Department of Chemistry, Korea University, Jochiwon 339-700, Korea.
Abstract:
Single-crystalline PbTe nanowires were synthesized using the chemical vapor transport method. They consisted of rock-salt structure PbTe nanocrystals uniformly grown in the [100] direction. We fabricated field-effect transistors using a single PbTe nanowire, providing evidence for its intrinsic n-type semiconductor characteristics. The values of the carrier mobility and concentration were estimated to be 0.83 cm(2) V(-1) s(-1) and 8.8 x 10(17) cm(-3), respectively. The Seebeck coefficients (-72 muV K(-1)) of individual nanowires were measured to show their n-type carrier-dominated thermoelectric transport properties.
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Semiconductors
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
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