Method for preparing perovskite quantum dot nanorod from methylamine lead bromide perovskite quantum dots

Abstract

The invention discloses a method for preparing a perovskite quantum dot nanorod from methylamine lead bromide perovskite quantum dots. The method comprises the steps of (1) cleaning a glass slide, firstly pouring a piranha solution (concentrated sulfuric acid and 30% hydrogen peroxide at the ratio of 7:3), boiling for 30min, sequentially pouring an ethanol solution and a deionized water solution, carrying out ultrasonic cleaning for 15-30min separately, taking out the glass slide and blowing by using nitrogen; (2) dissolving a dimethylformamide DMF solution of the methylamine lead bromide perovskite quantum dots into methylbenzene to prepare 1*10<-4> to 1*10<-3>mol / L of methylamine lead bromide perovskite quantum dot methylbenzene solution; (3) dripping the methylamine lead bromide perovskite quantum dot methylbenzene solution on the glass slide in a culture dish; and (4) closing a lid of the culture dish, drying the methylamine lead bromide perovskite quantum dot methylbenzene solution at a room temperature to obtain the perovskite quantum dot nanorod. A light-emitting layer for building a novel LED device, which is good in machinability and relatively low in cost, and can be produced on a large scale is provided for the field of solid-state lighting.

Description

technical field [0001] The invention relates to a technology for assembling perovskite quantum dot nanorods using methylamine lead bromine perovskite quantum dots as raw materials, and belongs to the technical field of quantum dot nanorod preparation. Background technique [0002] New quantum dot luminescent materials have the advantages of wide absorption range, narrow luminescence band, and strong photostability, and can obtain various monochromatic lights with emission colors covering the entire visible light band by controlling their size and composition. Therefore, quantum dots can be used as a A new type of luminescent material is used in the LED field. The nanorod structure has attracted much attention because of its unique physical and chemical properties and its important potential application value in the fields of light, electricity, catalysis and storage. However, the current method for preparing methylamine-lead-bromide perovskite quantum dot nanorods is to coa...

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Problems solved by technology

[0003] Technical problem: The purpose of this invention is to provide a method for preparing perovskite quantum dot nanorods with methylamine lead bromine perovskite quantum dots as raw material, to solve the traditional process of preparing methylamine lead bromine perovskite quantum dot nanorods. Dozens of hours and the need for spin-coating, baking, annealing and other steps lead to the disadvantages of long preparation cycle and complicated production process. Great

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