Shape-Controlled Vapor-Transport Growth of Tellurium Nanowires

Abstract

A vapor transport method is employed to synthesize single crystalline tellurium nanowires with tailorable size using tellurium powder in an inert atmosphere. The average nanowire diameter is tunable between 50 and 3000 nm with an associated length of 1 to 22 μm. Growth temperature and time are used to specifically control the behavior of supersaturation, leading to nucleation and morphological control in this vapor–solid growth regime. Analysis of the resulting nanowire product provides insight into the dominant reaction kinetics involved in these growths and suggests routes by which to control growth product. This methodology provides a practical approach to synthesizing high-quality tellurium nanowires of various sizes and their incorporation into two-dimensional mesh-like structures through controlled nucleation and growth dynamics.

Enhanced thermoelectric properties of the flexible tellurium nanowire film hybridized with single-walled carbon nanotube

“…The TeNW has a singlecrystalline structure with the regular direction to (0 0 1) lattice plane of hexagonal Te, which is consistent with the inserted SAED (selected area electron diffraction) pattern of Fig. 1(b) [29]. Right after the synthesis, the TeNW was hybridized with SWCNT due to the high electrical conductivity and mechanical stability of SWCNT in order to improve the TE performance.…”

One-step synthesis of high-quality homogenous Te/Se alloy nanorods with various morphologies

“…[11][12][13] Particularly, nanodevices based on Te/Se alloys have many stimulating properties, such as electrical resistance and magnetoresistance, superior to pure Te and Se nanomaterials. 2,13,[16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] However, the study on t-Te/Se ANRs is still in its primitive stage in terms of morphology diversity, uniformity and synthesis method. 2,13,[16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] However, the study on t-Te/Se ANRs is still in its primitive stage in terms of morphology diversity, uniformity and synthesis method.…”

Laser-Assisted Growth of t-Te Nanotubes and their Controlled Photo-induced Unzipping to ultrathin core-Te/sheath-TeO2 Nanowires

“…Up until now, two established methods are mostly employed for the controlled synthesis of 1D t -Te nanostructures; solution chemistry67891011 and vapor deposition at high temperature1213141516. While many interesting properties, including photoconductivity, photoelectricity, thermoelectricity, piezoelectricity, and nonlinear optical response, characterize bulk t -Te, a number of other important applications have recently been reported for t -Te nanostructures.…”