Infrared Electro-Fluorescence Device Low-Voltage Switching
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Solution Overview
Problem
Existing electro-fluorescence devices struggle to control infrared fluorescence effectively, with most studies focusing on visible light regions and lacking devices that can switch infrared fluorescence on and off efficiently, especially those that operate at low voltage and low power.
Innovation Solution
An electro-fluorescence device with a two-electrode, three-electrode, or transistor structure incorporating an electrolyte layer with an infrared fluorescence compound and electro-active material, capable of controlling infrared light emission through oxidation-reduction reactions at voltages within ±3 V, using compounds represented by specific formulas and electrolyte salts, solvents, and materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If infrared fluorescence materials are used in conventional electro-fluorescence devices, then infrared light emission can be achieved, but the devices require high driving voltage and high power consumption
Solution Approach 1:
The patent changes the chemical state parameters of the electro-active material through oxidation and reduction reactions. By cycling between oxidized and reduced states, the material's energy levels are adjusted to enable infrared fluorescence emission at low voltages, directly resolving the contradiction between achieving infrared light emission and reducing power consumption
Solution Approach 2:
The patent replaces conventional high-power electrical excitation methods with electrochemical oxidation-reduction reactions. This substitution allows the system to achieve the same infrared light emission effect through chemical energy transitions rather than direct high-energy electrical input, thereby reducing overall power consumption
2Ease of operation
If fluorescence extinguisher derivatives are injected for controlling infrared light signals, then signal control can be achieved, but the method is suitable only for one-time sensing and cannot be reused
Solution Approach 1:
The patent implements a recoverable electro-active material system where the material is discarded into oxidized or reduced states during operation and then recovered back to its initial state through applied voltage. This cycling between states enables repeated use of the same material for multiple infrared signal control operations, eliminating the one-time use limitation
Solution Approach 2:
The patent employs periodic oxidation-reduction cycles of the electro-active material to achieve reusable infrared signal control. By applying alternating voltages that periodically oxidize and reduce the material, the system can repeatedly switch infrared fluorescence on and off, enabling sustained operation rather than single-use
3Adaptability or versatility
If conventional electro-fluorescence materials are used, then visible light fluorescence control is achieved, but infrared region fluorescence control cannot be implemented
Solution Approach 1:
The patent makes the electro-active material universally applicable across different wavelength regions by selecting materials with appropriate HOMO-LUMO energy gaps. The same basic electrochemical mechanism (oxidation-reduction) that controls visible light fluorescence is extended to control infrared fluorescence, achieving multi-wavelength versatility while maintaining reliable switching performance
Solution Approach 2:
The patent creates a composite system combining specific infrared fluorescence materials (such as cyanine, squaraine, or porphyrin compounds) with electro-active materials. This composite approach enables the system to achieve both infrared wavelength emission and reliable electrochemical switching control, overcoming the limitation of conventional materials that only work in the visible region
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables complete switching on and off of infrared fluorescence, intermediate intensity control, and efficient low-voltage, low-power operation, suitable for infrared bioimaging and night vision enhancement systems, reducing power consumption and process complexity.
Implementation Method 1
An electro-fluorescence device is a device which may switch fluorescence off and on by the oxidation and reduction of an electro-active material which is introduced into the device by the applied voltage
Implementation Method 2
An infrared modulating electro-fluorescence device which may implement switching on and off of fluorescence of cells, the device including an electro-fluorescence material in the infrared bioimaging
Data Source
AI summary
The present invention relates to an electro-fluorescence device which includes an electro-active infrared fluorescence compound or a mixture including these compounds, and an electrolyte, such that an infrared light emitting signal is controlled by selecting and supplying a power source, which may induce electrical oxidation and reduction, so as to switch the infrared fluorescence. The low-voltage driven infrared signal modulating device of the present invention may be driven at 3 V or less, and thus may be applied for the use of an infrared biosensor, an infrared security signal generator, and an infrared signal disturbance.