A preparation method for improving light extraction efficiency of LED package device by using amorphous photonic structure
A technology of LED encapsulation and photonic structure, which is applied in the direction of photomechanical equipment, semiconductor devices, and photoplate-making process of pattern surface, etc. It can solve the problems that it is difficult to increase the light extraction efficiency, and achieve remarkable light extraction efficiency, high improvement, and light output. The effect of increased efficiency
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Embodiment 1
[0094] In this embodiment, a GaN-based blue LED package device with a curved surface with small curvature of AAO pattern is prepared, and the pattern on the hard template is a hole array.
[0095] The preparation method for improving the light extraction efficiency of an LED package device by using an amorphous photonic structure in this embodiment includes the following steps:
[0096] 1) AAO template with amorphous photonic structure with AAO pattern was prepared by secondary anodization method:
[0097] a) After electrochemical polishing of the high-purity aluminum sheet, the aluminum sheet is immersed as an anode in a constant temperature 0.005~0.5mol / L phosphoric acid electrolyte for an anodizing reaction, and the temperature is between -7~5 °C, resulting in a preliminary anodic oxidation reaction. self-assembled nanopore arrays;
[0098] b) Immerse the aluminum sheet after anodizing reaction in a constant temperature deoxidizing layer solution to remove the oxide layer ...
Embodiment 2
[0115] In this embodiment, a GaN-based blue LED package device with a large-curvature curved surface with an AAO pattern is prepared, and the pattern on the hard template is a hole array.
[0116] The preparation method for improving the light extraction efficiency of an LED package device by using an amorphous photonic structure in this embodiment includes the following steps:
[0117] 1) AAO template with amorphous photonic structure with AAO pattern was prepared by secondary anodization method:
[0118] a) After electrochemical polishing of the high-purity aluminum sheet, the aluminum sheet is immersed as an anode in a constant temperature 0.005~0.5mol / L phosphoric acid electrolyte for an anodizing reaction, and the temperature is between -7~5 °C, resulting in a preliminary anodic oxidation reaction. self-assembled nanopore arrays;
[0119] b) Immerse the aluminum sheet after anodizing reaction in a constant temperature deoxidizing layer solution to remove the oxide layer ...
Embodiment 3
[0133] In this embodiment, a white light LED package device with a large curvature curved surface with an AAO pattern is prepared, and the pattern on the hard template is a column array.
[0134] The preparation method for improving the light extraction efficiency of an LED package device by using an amorphous photonic structure in this embodiment includes the following steps:
[0135] 1) AAO template with amorphous photonic structure with AAO pattern was prepared by secondary anodization method:
[0136] a) After electrochemical polishing of the high-purity aluminum sheet, the aluminum sheet is immersed as an anode in a constant-temperature phosphoric acid electrolyte for an anodization reaction to generate a preliminary self-assembled nanopore array;
[0137] b) Immerse the aluminum sheet after anodizing reaction in a constant temperature deoxidizing layer solution to remove the oxide layer on the surface of the aluminum sheet, leaving an array of nano-dents;
[0138] c) Th...
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Abstract
Description
Claims
Application Information
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