Method for preparing nano luminescent material ZnO/SnO2 heterostructure
A technology of nano-luminescent materials and heterostructures, which is applied in the fields of luminescent materials, nano-optics, nanotechnology, etc., can solve the problems that there are no reports on heterogeneous-structured nanowire luminescent materials, and achieve high product purity, easy operation, and controllable process strong effect
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[0025] Example 1
[0026] Weigh a certain amount of Sn powder and Zn powder as source materials at a molar ratio of 1:1 and place them on the front of the alumina boat. Place a gold-plated silicon substrate 2cm away from the source material, and then place the alumina boat in the middle of the tube furnace , Add a refractory brick at each end of the pipe to cover (such as figure 1 ). Start the mechanical pump to make the pressure in the tube reach -0.08MPa, close the valve, and pass in an appropriate amount of argon. When the pressure in the tube reaches one atmospheric pressure, open the valve to connect to the atmosphere, start the mechanical pump again and repeat the above operation four times to remove the tube furnace cavity air. Start the furnace, raise the temperature to 950°C, pass in 50 sccm (volume flow unit, meaning milliliters per minute in standard conditions) oxygen, and keep it warm for 50 minutes. The furnace was naturally cooled to room temperature, the gas was...
Example Embodiment
[0027] Example 2
[0028] As in Example 1, use an electronic balance to weigh a certain amount of Sn powder and Zn powder as the source material and place it on the front end of the alumina boat. Place a gold-plated silicon substrate 2 cm away from the source material, and then place the alumina boat in the tube furnace. In the middle part, add a refractory brick at each end of the pipe to cover (such as figure 1 ). Start the mechanical pump to make the pressure in the tube reach -0.08MPa, close the valve, and pass in an appropriate amount of argon. When the pressure in the tube reaches one atmospheric pressure, open the valve to connect to the atmosphere, start the mechanical pump again and repeat the above operation four times to remove the tube furnace cavity air. Start the furnace, raise the temperature to 950°C, pass in 50sccm oxygen, and keep it warm for 70 minutes. The furnace was naturally cooled to room temperature, the gas was turned off, the substrate was taken out, ...
Example Embodiment
[0029] Example 3
[0030] As in Example 1, use an electronic balance to weigh a certain amount of Sn powder and Zn powder as the source material and place it on the front end of the alumina boat. Place a gold-plated silicon substrate 2 cm away from the source material, and then place the alumina boat in the tube furnace. In the middle part, add a refractory brick at each end of the pipe to cover (such as figure 1 ). Start the mechanical pump to make the pressure in the tube reach -0.08MP, close the valve, and pass in an appropriate amount of argon. When the pressure in the tube reaches one atmosphere, open the valve to connect to the atmosphere, start the mechanical pump again and repeat the above operation four times to remove the tube furnace cavity air. Start the furnace, raise the temperature to 1050°C, inject 50sccm oxygen, and keep it warm for 50 minutes. The furnace was naturally cooled to room temperature, the gas was turned off, the substrate was taken out, and a white...
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