A flexible non-volatile memory based on black phosphorus quantum dots and its preparation method
A quantum dot, non-volatile technology, used in semiconductor devices, electrical solid devices, electrical components, etc., can solve the problems of poor mechanical properties, insufficient stability, and difficult regulation of non-volatile memory, and achieve controllable electrical properties. , The storage performance is controllable and easy to regulate
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Embodiment 1
[0068] Transfer 6 mg of black phosphorus material powder to a 40 ml scintillation tube in a nitrogen box, and then add 20 ml of N-methyl-2-pyrrolidone to obtain a 0.3 mg / ml black phosphorus powder solution. Add ethylene dichloride to the black phosphorus powder solution. Amine, in a water bath in a sealed state, sonicated for 2 hours to prepare an organic solution of black phosphorous quantum dots; on the PE plastic substrate, a 100nm thick aluminum electrode was used to form a metal film bottom electrode through a mask in the form of thermal evaporation. Polymethyl methacrylate was spin-coated on the electrode to form the first polymer layer, and then annealed at 100°C for 1 hour; black phosphorus quantum dot organic solution was spin-coated on the annealed first polymer layer to form black phosphorus quantum Dot layer; spin-coated polymethyl methacrylate on the black phosphorous quantum dot layer to form a second polymer layer; on the second polymer layer, a 100nm thick alumin...
Embodiment 2
[0070] Transfer 6 mg of black phosphorus material powder to a 40 ml scintillation tube in a nitrogen box, and then add 30 ml of N-methyl-2-pyrrolidone to obtain a 0.2 mg / ml black phosphorus powder solution. Add borohydride to the black phosphorus powder solution The organic solution of black phosphorous quantum dots is prepared by ultrasonication in a water bath for 1 hour in a sealed state; an 80nm thick copper electrode is used on the PE plastic substrate to form a metal thin film bottom electrode through a mask in the form of thermal evaporation. Spin-coating polystyrene on the electrode to form a first polymer layer, then annealing at 90°C for 2h; spin-coating a black phosphorous quantum dot organic solution on the annealed first polymer layer to form a black phosphorous quantum dot layer; Polystyrene was spin-coated on the black phosphorous quantum dot layer to form a second polymer layer; on the second polymer layer, an 80nm thick copper electrode was thermally evaporated ...
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