Method and device for generating quantum dots and material prepared by using device

Abstract

The invention provides a method and device for generating quantum dots and a material prepared by using the device. The device comprises a reaction chamber, a first electrode, a second electrode and an electrostatic sprayer. The method for generating the quantum dots comprises the steps that the first electrode for growing the quantum dots is arranged at the lower end in the reaction chamber; the electrostatic sprayer sprays electrostatic spray in which the quantum dot material is dissolved to the reaction chamber; the second electrode is arranged at the upper end in the reaction chamber, voltage is applied between the second electrode and the first electrode to form a controllable electric field, the quantum dot material in the electrostatic spray settles towards the first electrode under the action of the electric field force of the controllable electric field, and the quantum dots grow on the first electrode; and the quantum dot material is prepared by using the device and the method.

Description

technical field [0001] The invention relates to the field of preparation of quantum dot materials, in particular to a method and device for generating quantum dots and materials prepared by using the device. Background technique [0002] At present, when preparing quantum dot materials, in most devices, the position of quantum dots is random and uncontrollable. The template method and the photolithography device can control the position of the quantum dots, but the template preparation is not controllable, and the photolithography has a great influence on the quantum effect of the quantum dots. The preparation of quantum dot arrays with controllable positions is the content that nanomaterial researchers are exploring. It is still difficult to prepare a small number of quantum dots and quantum wires with required shapes, and the precise positioning and growth is recognized as a difficult problem. [0003] Patent CN201120526391.2 discloses "a device for controllable generatio...

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Problems solved by technology

[0004] However, the following problems still exist in the prior art: the device disclosed in the patent CN201120526391.2 uses a solution to store quantum dots to prepare controllable quantum dots and quantum wires. When the device is powered on, because the solution is directly connected to the two poles, it is easy to use Failure to pressurize the quantum dots in the solution will affect the efficiency of producing quantum dots and increase the cost

[0005] Therefore, it is necessary to propose a technical solution to solve the problems that affect the efficiency of producing quantum dots in the prior art

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