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Preparation method of large-area molybdenum disulfide film material
The invention relates to a preparation method of a large-area molybdenum disulfide film material. Powdered sulfur and a molybdenum source are placed into a porcelain boat for use, and a solid matrix for experiments is placed into acetone and isopropanol for ultrasonic treatment for a period of time so as to remove impurities on the surface of the matrix; then, the matrix is placed on the porcelain boat with the molybdenum source, and finally the porcelain boat with the sulfur source and the molybdenum source is placed in a tube furnace; inert gas Ar is introduced to remove air in the tube furnace thoroughly, and a temperature zone where the molybdenum source in the tube furnace is located is heated to 650-850 DEG C; similarly, a temperature zone where the sulfur source in the tube furnace is located is heated to 145-200 DEG C; the temperature is kept constant for 10-20 min and then cooling is performed to the room temperature; the single-layer or few-layer large-area centimeter-level molybdenum disulfide film material is obtained. The obtained molybdenum disulfide film material has the advantages of being large in area, capable of achieving the single layer or few layers, good in uniformity and crystallization and the like, and the method is easy to implement, short in consumed time and suitable for large-scale production.
Preparation method of large-area molybdenum disulfide film material
The invention relates to a preparation method of a large-area molybdenum disulfide film material. Powdered sulfur and a molybdenum source are placed into a porcelain boat for use, and a solid matrix for experiments is placed into acetone and isopropanol for ultrasonic treatment for a period of time so as to remove impurities on the surface of the matrix; then, the matrix is placed on the porcelain boat with the molybdenum source, and finally the porcelain boat with the sulfur source and the molybdenum source is placed in a tube furnace; inert gas Ar is introduced to remove air in the tube furnace thoroughly, and a temperature zone where the molybdenum source in the tube furnace is located is heated to 650-850 DEG C; similarly, a temperature zone where the sulfur source in the tube furnace is located is heated to 145-200 DEG C; the temperature is kept constant for 10-20 min and then cooling is performed to the room temperature; the single-layer or few-layer large-area centimeter-level molybdenum disulfide film material is obtained. The obtained molybdenum disulfide film material has the advantages of being large in area, capable of achieving the single layer or few layers, good in uniformity and crystallization and the like, and the method is easy to implement, short in consumed time and suitable for large-scale production.
Preparation method of large-area molybdenum disulfide film material
FENG YIYU (Autor:in) / CHEN CHUANMENG (Autor:in) / FENG WEI (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
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