Abstract:
Bi 및 Sb 전구체를 용매 중에 투입하여 Bi-Sb 용액을 형성하는 단계, Te 분말을 산과 용매의 혼합용액에 투입하여 Te 용액을 형성하는 단계, 상기 Bi-Sb 용액과 상기 Te 용액을 혼합하여 반응시켜 Bi x Sb 2 -xTe 3 반응물을 형성하는 단계, 상기 Bi x Sb 2 -xTe 3 반응물을 여과 및 건조하여 Bi x Sb 2 -xTe 3 나노입자를 얻는 단계, 및 상기 Bi x Sb 2 -xTe 3 나노입자를 열처리하는 단계를 포함하는 나노화합물 열전재료 제조방법이 제공된다.
Abstract:
PURPOSE: A method for manufacturing BixTe3-ySey nanocompound thermoelectric materials and the nanocompound thermoelectric materials manufactured by the same are provided to control a temperature to show the maximum thermoelectric performance index by controlling the charge carrier density of a nanocompound. CONSTITUTION: Bi(III)-stabilizer complex solutions are made by injecting a Bi precursor, a reducing agent, and a stabilizer into solvents(A1). BixTe3-ySey is made by reacting a Te precursor with the Bi(III)-stabilizer complex solutions(A2). BixTe3-ySey nanoparticles are obtained by filtering and drying the BixTe3-ySey(A3). The BixTe3-ySey nanoparticles are thermally processed(A4). [Reference numerals] (A1) Making Bi(III)-stabilizer complex solutions; (A2) Forming BixTe3-ySey by reacting a Te precursor with the Bi(III)-stabilizer complex solutions; (A3) Obtaining BixTe3-ySey nanoparticles by filtering and drying the BixTe3-ySey; (A4) Thermally processing the BixTe3-ySey nanoparticles; (AA) Start; (BB) End;
Abstract:
PURPOSE: A method for manufacturing BixSb2-xTe3 nanocompound thermoelectric materials and the nanocompound thermoelectric materials manufactured by the same are provided to increase a thermoelectric performance index by synthesizing BixSb2-xTe3 nanocompounds for a low temperature through a wet chemical process. CONSTITUTION: Bi-Sb solutions are made by injecting a Bi and Sb precursor to solvents(A1). Te solutions are made by injecting Te powder to mixture of acid and solvents(A2). BixSb2-xTe3 reactants are made by mixing the Bi-Sb solutions with the Te solutions(A3). BixSb2-xTe3 nanoparticles are obtained by filtering and drying the BixSb2-xTe3 reactants(A4). The BixSb2-xTe3 nanoparticles are thermally processed(A5). [Reference numerals] (A1) Forming Bi-Sb solutions; (A2) Making Te solutions; (A3) Reacting between the Bi-Sb solutions and Te solutions; (A4) Obtaining BixSb2-xTe3 nanoparticles by filtering and drying; (A5) Thermally processing the BixSb2-xTe3 nanoparticles; (AA) Start; (BB) End