Abstract
We describe a one-step, one-pot non-aqueous route for the synthesis of Sb 2Te 3 nanocrystals with hexagonal shape and highly anisotropic nanostructures. The as-prepared nanostructures were characterized by XRD, TEM and HRTEM. The effect of the stabilizers on the nanocrystal morphology has been discussed in detail. We have studied the thermal conductivity of the compacted bulk from the Sb 2Te 3 nanostructures. The results indicated that a very low thermal conductivity of about 1 W/mK at 300 K, comparing to 4.7 W/mK of the polycrystalline bulk, was achieved. The results indicated that nanostructured Sb 2Te 3 is potentially a good candidate for engineered nanocomposites that can lead to high thermoelectric figure-of-merit.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 452-456 |
| Number of pages | 5 |
| Journal | Journal of Nanoscience and Nanotechnology |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2008 |
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All Science Journal Classification (ASJC) codes
- Bioengineering
- Chemistry(all)
- Biomedical Engineering
- Materials Science(all)
- Condensed Matter Physics
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Chemical synthesis of anisotropic nanocrystalline Sb 2Te 3 and low thermal conductivity of the compacted dense bulk. / Wang, Wenzhong; Yan, Xiao; Poudel, Bed; Ma, Yi; Hao, Qing; Yang, Jian; Chen, Gang; Ren, Zhifeng.
In: Journal of Nanoscience and Nanotechnology, Vol. 8, No. 1, 01.01.2008, p. 452-456.Research output: Contribution to journal › Article
TY - JOUR
T1 - Chemical synthesis of anisotropic nanocrystalline Sb 2Te 3 and low thermal conductivity of the compacted dense bulk
AU - Wang, Wenzhong
AU - Yan, Xiao
AU - Poudel, Bed
AU - Ma, Yi
AU - Hao, Qing
AU - Yang, Jian
AU - Chen, Gang
AU - Ren, Zhifeng
PY - 2008/1/1
Y1 - 2008/1/1
N2 - We describe a one-step, one-pot non-aqueous route for the synthesis of Sb 2Te 3 nanocrystals with hexagonal shape and highly anisotropic nanostructures. The as-prepared nanostructures were characterized by XRD, TEM and HRTEM. The effect of the stabilizers on the nanocrystal morphology has been discussed in detail. We have studied the thermal conductivity of the compacted bulk from the Sb 2Te 3 nanostructures. The results indicated that a very low thermal conductivity of about 1 W/mK at 300 K, comparing to 4.7 W/mK of the polycrystalline bulk, was achieved. The results indicated that nanostructured Sb 2Te 3 is potentially a good candidate for engineered nanocomposites that can lead to high thermoelectric figure-of-merit.
AB - We describe a one-step, one-pot non-aqueous route for the synthesis of Sb 2Te 3 nanocrystals with hexagonal shape and highly anisotropic nanostructures. The as-prepared nanostructures were characterized by XRD, TEM and HRTEM. The effect of the stabilizers on the nanocrystal morphology has been discussed in detail. We have studied the thermal conductivity of the compacted bulk from the Sb 2Te 3 nanostructures. The results indicated that a very low thermal conductivity of about 1 W/mK at 300 K, comparing to 4.7 W/mK of the polycrystalline bulk, was achieved. The results indicated that nanostructured Sb 2Te 3 is potentially a good candidate for engineered nanocomposites that can lead to high thermoelectric figure-of-merit.
UR - http://www.scopus.com/inward/record.url?scp=42649089060&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=42649089060&partnerID=8YFLogxK
U2 - 10.1166/jnn.2008.062
DO - 10.1166/jnn.2008.062
M3 - Article
C2 - 18468102
AN - SCOPUS:42649089060
VL - 8
SP - 452
EP - 456
JO - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
SN - 1533-4880
IS - 1
ER -