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We present experimental investigation of synthesis nanostructures of p-type Bi0.6Sb1.4Te3 thermoelectric materials. These semiconductor materials are the best convention thermoelectric materials for use near room temperature. A new synthesis method of nanopowder using the laser ablation on high speed moving target and long laser pulse has been used and carried out in an argon atmospheric pressure...
The technique of laser fracture in a liquid medium has been applied to the synthesis of n-type (Bi0.95Sb0.05)2 (Te0.95Se0.05)3 and p-type (Bi0.2Sb0.8)2Te3 semiconducting nanopowders which are the best conventional materials currently used for thermoelectric applications at ambient temperature. The nanopowders have been prepared with a high yield in an especially built-up cell. Laser fracture in water...
The aim of the investigation is to attempt to build-up a p-n junction by means of utilizing conventional thermoelectric materials, i.e. bulk polycrystalline p-type Bi0.45Sb1.55Te3 and n-type Bi1.6Sb0.4Te3. The fabrication used a rapid and ordinary sintering procedure. The current-voltage (I-V) characteristic curves are measured for several heating times and temperatures. The results show the feasibility...
The present work is focus on thermoelectric materials synthesized by economical technique and less production time for low-cost thermoelectric module fabrication. BixSb2-xTe3 polycrystalline with x = 1.6 for n-type and x = 0.45 for p-type thermoelectric materials were synthesized using two different methods, hot pressing and cold pressing process. The thermoelectric properties were measured at room...
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