LED-pumped perovskite quantum dot continuous laser

A perovskite and quantum dot technology, applied in the field of lasers, can solve the problems of colloidal quantum dot continuous lasers and achieve the effects of easy batch preparation, continuously adjustable emission wavelength, and narrow half-peak width

Active Publication Date: 2020-09-04
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, so far, electrically-pumped or LED-pumped colloidal quantum dot CW lasers have not been realized

Method used

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  • LED-pumped perovskite quantum dot continuous laser
  • LED-pumped perovskite quantum dot continuous laser
  • LED-pumped perovskite quantum dot continuous laser

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Embodiment Construction

[0032] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0033]Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without the specific details or in the particular manner described.

[0034] figure 1 It is a schematic diagram of an LED...

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Abstract

The invention relates to an LED pumped perovskite quantum dot continuous laser. The LED pumped perovskite quantum dot continuous laser comprises a pumping source, gain medium and a resonance cavity, wherein the pumping source is used for exciting the gain medium; the gain medium is a composite light emitting thin film formed by a perovskite quantum dot material and a polymer and used for receivingradiation of the pumping source to excite photons; and the resonance cavity is used for amplifying the photons excited by the gain medium to output continuous laser, wherein the pumping source is a light emitting diode (LED).

Description

technical field [0001] The invention relates to the field of laser technology, in particular to an LED-pumped perovskite quantum dot continuous laser. Background technique [0002] Semiconductor continuous lasers have the advantages of small size and light weight, and have important application values ​​in laser display, laser lighting, communication and other fields. However, the production of commercial semiconductor continuous lasers requires high vacuum and high temperature, the production cost is high, the processing technology is complicated, and the emission wavelength cannot be continuously adjusted. The CW laser that can be prepared by the solution method has simple preparation process and low price. This type of laser can be prepared by spin coating, inkjet printing and other methods, and can be prepared to form flexible devices on flexible substrates, which has great practical application value. Colloidal quantum dots are an important laser gain material with the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/0933H01S3/08H01S3/16
CPCH01S3/08H01S3/0933H01S3/16
Inventor 钟海政王雷
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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