Super-flexible chalcogenide thermoelectric fiber

• Main Authors: LIN CHANGGUI, HUANG KAIYAO, TAN LINLING, KANG SHILIANG, SONG BAOAN, FU YANQING, GAO CHENGWEI, DAI SHIXUN, ZHANG PEIQING
• Format: Patent
• Language: Chinese; English
• Published: 24.02.2023
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS

The composition of the super-flexible chalcogenide thermoelectric fiber is a tellurium-based chalcogenide glass material, the molar composition of the tellurium-based chalcogenide glass material is represented by the chemical formula of AgSexSyTe1-x-y, x is greater than or equal to 0.1 and less than or equal to 1.0, and y is greater than or equal to 0 and less than or equal to 0.3. The super-flexible chalcogenide thermoelectric fiber is an amorphous/polycrystalline mixed phase, and the tensile property of the fiber is remarkably improved due to the development and evolution of a shear band in the amorphous phase and the inhibition effect of nanocrystalline on the shear band; the thermoelectric fiber disclosed by the invention has excellent mechanical flexibility and high-room-temperature thermoelectric performance, and is expected to be applied to a human body wearable thermoelectric power generation device; according to the method, the problem that the AgSexSyTe1-x-y fiber without the fixed softening tempera