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Information encryption-self-driven decryption integrated optical-thermal device and preparation method thereof

An information encryption and self-driving technology, applied in the field of information security, can solve the problems of unrealized optical integrated systems, bulky devices, complex structures, etc., and achieve the effects of low cost, good repeatability, and small size

Active Publication Date: 2021-04-30
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these fluorescent anti-counterfeiting and encryption studies have shown excellent performance, they still rely on additional large-scale devices to provide external stimuli as the decryption driving force, which results in bulky and complex devices that can be applied to optical integration in wearable / portable fields. system not yet implemented

Method used

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  • Information encryption-self-driven decryption integrated optical-thermal device and preparation method thereof
  • Information encryption-self-driven decryption integrated optical-thermal device and preparation method thereof
  • Information encryption-self-driven decryption integrated optical-thermal device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Example: such as figure 1 As shown, the information encryption-self-driven decryption integrated photo-thermal device includes a light source excitation system, a high-temperature color-changing light-emitting system and a film heating system, and the high-temperature color-changing light-emitting system is used as an information encryption / anti-counterfeiting display layer; the film heating system It is connected with the high-temperature color-changing light emitting system; the light source excitation system is connected with the high-temperature color-changing light-emitting system, and is used to excite the high-temperature color-changing light-emitting system to produce different modes of light; the film heating system is used to generate Joule heat Provide a temperature-changing environment for the high-temperature color-changing light-emitting system; the information encryption-self-driven decryption integrated photo-thermal device also includes a self-power supp...

Embodiment 2

[0043] Method Example 2: The difference from the above method Example 1 is that the parameters of the preparation are different, specifically: the preparation method of the information encryption-self-driven decryption integrated photo-thermal device, wherein the high-temperature discoloration system uses long-lasting luminescent materials, thin-film The heating system uses a laser-induced graphene film heater, which specifically includes the following steps:

[0044] S1: Weigh the raw materials according to the ratio, and mix the SrCaGa 4 o 8 : Zn 2+ and SrCaGa 4 o 8 : Nd 3+ The long-lasting luminescent material was put into an agate mortar for wet grinding for 30 minutes. After mixing evenly, it was introduced into a corundum crucible and placed in a high-temperature tube furnace for sintering. The sintering temperature was 1000°C and the sintering time was 12 hours to obtain SrCaGa 4 o 8 : Zn 2+ and SrCaGa 4 o 8 : Nd 3+ Long afterglow luminescent material;

[004...

Embodiment 3

[0050] Method Example 3: The difference from the above method Example 1 is that the preparation parameters are different, specifically: the preparation method of the information encryption-self-driven decryption integrated photo-thermal device, in which the high-temperature discoloration system uses long-lasting luminescent materials, and the film is heated The system uses a laser-induced graphene film heater, which specifically includes the following steps:

[0051] S1: Weigh the raw materials according to the ratio, and mix the SrCaGa 4 o 8 : Zn 2+ and SrCaGa 4 o 8 : Nd 3+The long-lasting luminescent material was put into an agate mortar for wet grinding for 30 minutes. After mixing evenly, it was introduced into a corundum crucible and placed in a high-temperature tube furnace for sintering. The sintering temperature was 1500°C and the sintering time was 10 hours to obtain SrCaGa 4 o 8 : Zn 2+ and SrCaGa 4 o 8 : Nd 3+ Long afterglow luminescent material;

[0052]...

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Abstract

The invention discloses an information encryption self-driven decryption integrated optical-thermal device and a preparation method thereof. The information encryption self-driven decryption integrated optical-thermal device comprises a light source excitation system, a high-temperature color-changing light-emitting system and a thin film heating system, and the high-temperature color-changing light-emitting system serves as an information encryption / anti-counterfeiting display layer; the film heating system is connected with the high-temperature color-changing light-emitting system; the light source excitation system is connected with the high-temperature color-changing light-emitting system and used for exciting the high-temperature color-changing light-emitting system to emit light in different modes. And the film heating system is used for generating joule heat to provide a variable-temperature environment for the high-temperature color-changing light-emitting system. The information encryption self-driven decryption integrated optical-thermal device is small in size, flexible, non-toxic, simple to prepare, low in cost and good in mechanical property.

Description

technical field [0001] The invention relates to the field of information security, and is especially suitable for an optical-based information encryption-anti-counterfeiting integrated device and a preparation method thereof. Background technique [0002] Anti-counterfeiting and security information encryption technology plays a vital role in daily life, economy and even military fields. On the one hand, with the development of the commodity economy, counterfeit goods have increased dramatically around the world, which has had a negative impact on the global economic market. On the other hand, in the era of information explosion, the availability of massive data provides great convenience for people's work and life. But at the same time, it also brings huge security risks, which may lead to dire consequences such as social problems and serious economic losses. Therefore, improving the technology of "data encryption / decryption system for anti-counterfeiting and security" ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/26G11B7/252G11B7/241G06F21/60C09K9/00C09K11/62C09K11/02
CPCG11B7/26G11B7/252G11B7/241G06F21/602C09K9/00C09K11/625C09K11/7756C09K11/025
Inventor 陶璐琪朱聪聪王冠亚彭治荣
Owner CHONGQING UNIV
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