Controllable preparation method for realizing self-assembled nano-flowers of p-type laminar gallium telluride nano-sheets
A nanoflower, gallium telluride technology, applied in chemical instruments and methods, selenium/tellurium compounds, metal selenide/telluride, etc., can solve the problems of difficult controllable preparation of GaTe nanomaterials, and achieve obvious pn junction rectification effect. , Good photoelectric catalytic hydrogen production effect, overcoming the effect of easy recombination
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Embodiment 1
[0036] A method for the controllable preparation of large-area p-type layered GaTe nanosheet self-assembled nanoflowers under normal pressure, comprising the steps of:
[0037] The first step is to clean the sapphire wafer and quartz boat. First, put a sapphire substrate with a size of 1×1cm, a thickness of 0.5mm, and a surface roughness of 0.2nm into a beaker filled with 50ml of ethanol, perform ultrasonic cleaning for 15 minutes, and take it out and blow it dry with a nitrogen gun; Next, put the dried sapphire substrate into another beaker containing 50 ml of acetone, perform ultrasonic cleaning for 15 minutes, take it out and dry it with a nitrogen gun; finally put the dried sapphire substrate into 100 ml of deionized In water, perform ultrasonic cleaning for 10 minutes, take it out and dry it with a nitrogen gun.
[0038] In the second step, the sapphire substrate is annealed. The sapphire substrate cleaned up in the first step is directly put into the double-temperatur...
Embodiment 2
[0049] A method for the controllable preparation of large-area p-type layered GaTe nanosheet self-assembled nanoflowers under normal pressure, comprising the steps of:
[0050] The first step is to clean the sapphire wafer and quartz boat. First, put a sapphire substrate with a size of 1×1cm, a thickness of 0.5mm, and a surface roughness of 0.2nm into a beaker filled with 50ml of ethanol, perform ultrasonic cleaning for 15 minutes, and take it out and blow it dry with a nitrogen gun; Next, put the dried sapphire substrate into another beaker containing 50 ml of acetone, perform ultrasonic cleaning for 15 minutes, take it out and dry it with a nitrogen gun; finally put the dried sapphire substrate into 100 ml of deionized In water, perform ultrasonic cleaning for 10 minutes, take it out and dry it with a nitrogen gun.
[0051] In the second step, the sapphire substrate is annealed. The sapphire substrate cleaned up in the first step is directly put into the double-temperatur...
Embodiment 3
[0058] A method for the controllable preparation of large-area p-type layered GaTe nanosheet self-assembled nanoflowers under normal pressure, comprising the steps of:
[0059] The first step is to clean the sapphire wafer and quartz boat. First, put a sapphire substrate with a size of 1×1cm, a thickness of 0.5mm, and a surface roughness of 0.2nm into a beaker filled with 50ml of ethanol, perform ultrasonic cleaning for 15 minutes, and take it out and blow it dry with a nitrogen gun; Next, put the dried sapphire substrate into another beaker containing 50 ml of acetone, perform ultrasonic cleaning for 15 minutes, take it out and dry it with a nitrogen gun; finally put the dried sapphire substrate into 100 ml of deionized In water, perform ultrasonic cleaning for 10 minutes, take it out and dry it with a nitrogen gun.
[0060] In the second step, the sapphire substrate is annealed. The sapphire substrate cleaned up in the first step is directly put into the double-temperatur...
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