Benzoxazole short-wave light conversion material and short-wave light conversion adhesive film thereof

By using benzoxazole-based small organic molecule materials as short-wavelength light conversion materials, the problem of damage caused by ultraviolet radiation in solar cell modules has been solved, achieving efficient light energy conversion and protection, and improving the power generation efficiency and lifespan of the modules.

CN122079919APending Publication Date: 2026-05-26SUZHOU RUIERSI TECH CO LTD
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Patent Information

Application Number
CN202610189510.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-10
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies for improving solar cell efficiency suffer from problems such as cell damage and reduced power generation efficiency caused by ultraviolet radiation, especially with limited effectiveness in blocking short-wave ultraviolet light, which affects the power generation efficiency of the module.

Method used

Using benzoxazole-based organic small molecule materials as short-wave light conversion materials, they can efficiently absorb short-wave ultraviolet light and convert it into visible or near-ultraviolet light. By forming a composite film with polymer resin, the doping concentration and thickness of the material are optimized to ensure light transmittance and protective effect.

Benefits of technology

It improves the power generation and lifespan of solar cells, protects the cells from short-wave ultraviolet damage, and enhances the overall performance and economic benefits of the module.

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Abstract

The invention provides a benzoxazole-based short-wave light conversion material, the structure of which is as shown in formula I. In the formula, R1 and R2 are respectively and independently hydrogen atoms and C1-C18 straight-chain or branched-chain alkyl; and R3 is aryl or substituted aryl. The short-wave light conversion material has the advantages of excellent short-wave ultraviolet light absorptivity, high light-emitting quantum efficiency, good light stability, low price, easiness in batch production and the like, is doped in a solar cell packaging adhesive film at a certain concentration, can efficiently absorb short-wave-band ultraviolet light to avoid UVID (power decline caused by ultraviolet aging), and also has the advantages of high light-emitting quantum efficiency, high light-emitting quantum efficiency, low cost and the like. And the absorbed short-wave ultraviolet light can be converted into long-wave ultraviolet light or blue-violet light which can be efficiently utilized by a solar cell, so that the power generation power is improved, and the photovoltaic module has important significance for improving the comprehensive performance and economic benefit of the photovoltaic module.
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