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Perovskite quantum dot film and structure containing same

A quantum dot film, perovskite technology, applied in the field of quantum dots, can solve the problems of influence, poor ultraviolet absorption, etc.

Active Publication Date: 2019-04-09
SUZHOU XINGSHUO NANOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, these ultraviolet absorbers degrade over time, thus adversely affecting the absorption of ultraviolet rays by the ultraviolet absorbing film

Method used

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  • Perovskite quantum dot film and structure containing same

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Effect test

Embodiment 1

[0034] Both sides of the quantum dot film are provided with glass substrates. The thickness of the quantum dot film is 0.38 mm. The quantum dot film consists of CsPbBr 3 The mass ratio of quantum dots, triethylene glycol diisocaprylate, and polyvinyl butyral is 1:10:30. The number average molecular weight of polyvinyl butyral is 100,000. CbBr 3 The fluorescence quantum efficiency of the quantum dots is 2.0%.

Embodiment 2

[0036] Both sides of the quantum dot film are provided with PET substrates. The thickness of the quantum dot film is 0.76 mm. The quantum dot film consists of CsPbBr 3 The mass ratio of quantum dots, triethylene glycol diisocaprylate, and polyvinyl butyral is 1:5.5:14. The number average molecular weight of polyvinyl butyral was 12,000. CbBr 3 The fluorescence quantum efficiency of the quantum dots is 4.2%.

Embodiment 3

[0038] A glass substrate is arranged on one side of the quantum dot film, and a barrier film is arranged on the other side of the quantum dot film. The thickness of the quantum dot film is 0.05 mm. The quantum dot film includes CH 3 NH 3 PbBr 3 The mass ratio of quantum dots, triethylene glycol diisocaprylate, and polyvinyl butyral is 1:7:21. The number average molecular weight of polyvinyl butyral was 150,000. CH 3 NH 3 PbBr 3 The fluorescence quantum efficiency of the quantum dots is 5.8%.

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Abstract

The invention discloses a perovskite quantum dot film and a structure containing the same. The quantum dot film comprises polyvinyl butyral, plasticizer dispersed in the polyvinyl butyral, perovskitequantum dots dispersed in the polyvinyl butyral to absorb ultraviolet ray, wherein the perovskite quantum dot has a chemical formula of ABX3, A is at least one of amine organic groups and inorganic metals, B is at least one of Pb, Sn and Ge, and X is at least one of Cl, Br and I. In the perovskite quantum dot film, the perovskite quantum dot has excellent light absorbing performance, can be used for absorbing a great number of ultraviolet ray, cannot easily perform degrading phenomenon after absorbing the ultraviolet ray, and the capability of the quantum dot film for absorbing ultraviolet raycannot be reduced, or even failed.

Description

technical field [0001] The application belongs to the field of quantum dots, in particular to a quantum dot film and a structure containing the quantum dot film. Background technique [0002] Excessive ultraviolet rays can harm the human body or fade colored objects. In daily life, UV absorbing film is used to protect against ultraviolet rays. The existing ultraviolet absorbing film absorbs ultraviolet rays through ultraviolet absorbers, so as to realize the prevention of ultraviolet rays. [0003] However, these ultraviolet absorbers are degraded over time, which adversely affects the absorption of ultraviolet rays by the ultraviolet absorbing film. Contents of the invention [0004] In view of the above technical problems, the present application provides a chemically stable ultraviolet absorbing film. [0005] A perovskite quantum dot film includes: polyvinyl butyral; plasticizer, dispersed in polyvinyl butyral (polyvinyl butyral, PVB); perovskite quantum dots, dispe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08K9/10C08K5/103C08K3/16C08J5/18C09K11/66C09K11/06C09K11/02
CPCC08J5/18C08J2329/04C08K3/16C08K5/103C08K9/10C09K11/025C09K11/06C09K11/665C09K2211/188
Inventor 徐晓波马卜王允军
Owner SUZHOU XINGSHUO NANOTECH CO LTD
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