Flexible thermoelectric generator comprises p-type thermoelectric element comprising copper tin sulfide nanocrystals film and n-type thermoelectric element comprising bismuth film, where p-type and n-type thermoelectric elements are operatively connected by conducting connectors
	MONDAL B P; DAS S; DATTA A
	2023-08-30
专利权人	INDIAN ASSOC CULTIVATION SCI (INAS-Non-standard)
申请日期	2023-08-30
专利号	IN202331058259-A
成果简介	NOVELTY - Flexible thermoelectric generator comprises: a p-type thermoelectric element comprising copper tin sulfide nanocrystals film having voltage value of 30-118 μV/k on a flexible emery paper substrate; and n-type thermoelectric element comprising bismuth film having a voltage value of -71 to -78 μV/k on a flexible emery paper substrate. The p-type and n-type thermoelectric elements are operatively connected by conducting connectors. USE - The flexible thermoelectric generator is useful for synthesis of copper tin sulfide nanocrystals (claimed). ADVANTAGE - The flexible thermoelectric generator is economical and exhibits high output power. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) synthesizing flexible thermoelectric generator, involving synthesizing p-type thermoelectric element including generation of copper tin sulfide involving scalable hot injection method in phase pure (cubic) condition and drop casting of copper tin sulfide nanocrystals colloidal solution on flexible emery paper substrate, synthesizing n-type thermoelectric element following generation of bismuth film obtained of cold pressed on emery paper, assembling the synthesized n-type and p-type thermoelectric legs on emery paper in two-dimensional geometry on flexible, insulating tape and copper tape conducting connectors; (2) synthesized copper tin sulfide nanocrystals by a facile, economical, scalable hot injection method with good reproducibility in phase pure (cubic) condition with high crystallinity in high yield and narrow size dispersion of 70-80 nm; and (3) synthesis of the copper tin sulfide nanocrystals, involving dissolving copper chloride and stannous chloride dihydrate in 1-octadecene under vacuum for 15-25 minutes, preferably 20 minutes, then purging nitrogen for 10-15 minutes, preferably 15 minutes under a constant stirring at 290-310 revolutions/minute, preferably 300 revolutions/minute, then increasing the temperature and holding at 120-140℃, preferably 120℃ for 15-20 minutes, preferably 20 minutes, resulting in the formation of a brown color intermediate complex, gradually raising the temperature to 215-225℃, preferably 220℃, adding sulfur solution and 1-octadecene dropwise at 90-100℃, preferably 100℃, aging the whole reaction mixture for 10-15 minutes, preferably 15 minutes for the completion of the reaction and the colour change from brown to black confirms the formation of copper tin sulfide. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the two dimensional flexible thermoelectric generator fabrication stepwise from thermoelectric materials synthesis and making films on emery paper.
IPC 分类号	B82Y-030/00 ; C01G-019/00 ; H01L-035/30 ; H01L-035/32 ; H01L-035/34
国家	印度
专业领域	材料科学
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/20609
专题	中国科学院新疆生态与地理研究所
作者单位	INDIAN ASSOC CULTIVATION SCI (INAS-Non-standard)
推荐引用方式 GB/T 7714	MONDAL B P,DAS S,DATTA A. Flexible thermoelectric generator comprises p-type thermoelectric element comprising copper tin sulfide nanocrystals film and n-type thermoelectric element comprising bismuth film, where p-type and n-type thermoelectric elements are operatively connected by conducting connectors. IN202331058259-A[P]. 2023.

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