Transport properties of single-crystalline n-type semiconducting PbTe nanowires.
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.
Jang
So Young
SY
Department of Chemistry, Korea University, Jochiwon 339-700, Korea.
Kim
Han Sung
HS
Park
Jeunghee
J
Jung
Minkyung
M
Kim
Jinhee
J
Lee
Seung Hyun
SH
Roh
Jong Wook
JW
Lee
Wooyoung
W
D007854:Lead / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods; D053770:Nanowires / Q000737:chemistry*; D013691:Tellurium / Q000737:chemistry*
D007854:Lead; D013691:Tellurium