Blue-light perovskite light-emitting diode and preparation method thereof

Abstract

The invention discloses a blue-light perovskite light-emitting diode and a preparation method thereof. The blue- light perovskite light-emitting diode provided by the invention comprises a blue light perovskite light-emitting layer, and the blue light perovskite light-emitting layer comprises CsBr, PbBr2, isobutylamine hydrobromide and 1-phenyl biguanide hydrochloride. The preparation method of the blue light perovskite light-emitting diode comprises the following steps: 1) coating a PEDOT: PSS solution on an anode layer to form a hole transport layer; 2) coating the hole transport layer with a solution containing CsBr, PbBr2, isobutylamine hydrobromide and 1-phenyl biguanide hydrochloride to form a blue light perovskite luminescent layer; and 3) sequentially evaporating the electron transport layer and the cathode layer on the blue-light perovskite light-emitting layer to obtain the blue-light perovskite light-emitting diode. The blue- light perovskite light-emitting diode can realize blue light emission, the external quantum efficiency is high, the preparation method is simple, and the manufacturing cost is low.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for efficient generation of greenish yellow colored lights from an organic compound called tetraazoxane (TZ). By mixing this molecule into another substance like ammonia or urea it forms a solid state device known as Blue Ray Titanium Quantum Dot(BaTiO_{3/CNIPRONS/CASNAP), resulting in improved performance compared to traditional methods such as fluorescein angiography. Additionally, BTA has been found effective at reducing crystal surfaces' defects due to ion mobility during synthesis processes. Overall these technical improvements make the new type of LED possible more efficiently than previous types while maintaining their advantages over older technologies.}

Problems solved by technology

This patented technical solution describes an optronics device called Perovski Light Emission Display or PELC for displaying images on screens. These devices use different materials like quantum dots instead of traditional fluorescers but they also emit white lights at specific colors due to their unique characteristics. Additionally, these devices require no dichroism compensating agents during operation, allowing them to be operated over both brightly lit conditions and darkly lit environments without losing effectiveness. Overall, this new type of optodevices allows for improved image resolution, reduced manufacture costs, increased efficiency, enhanced visual effects, and better performance capabilities across various applications.

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