Piezoelectric Ligand-Modified Quantum Dots for Sensing
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Solution Overview
Problem
Current high integration electronic methods through miniaturization face limitations in processing massive human information data due to increased complexity, weight, power consumption, and the inability to simultaneously detect and display human sensory information efficiently, making them unsuitable for future hyper-connected societies that require ultra-low power and flexible devices.
Innovation Solution
A synchronized piezoelectric and luminescence (SPL) material is developed by attaching piezoelectric ligands to light-emitting particles, creating a single material that combines piezoelectric and luminescent properties, enabling efficient detection and display of sensory information with ultra-low power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate sensing elements and display elements are stacked or composited, then the functions of detecting and displaying human sensory information can be performed, but the device complexity, weight, and power consumption increase
Solution Approach 1:
The patent merges separate piezoelectric sensing elements and luminescent display elements into a single integrated material system. The piezoelectric polymer matrix incorporates luminescent quantum dots, creating one material that simultaneously performs sensing (via piezoelectric effect) and display (via luminescence) functions, thereby reducing device complexity while maintaining multifunctionality
Solution Approach 2:
The integrated material serves multiple functions simultaneously: the piezoelectric polymer provides sensing capability for mechanical stress and electrical signal generation, while the incorporated luminescent quantum dots provide display capability for visual output. This multi-functional design eliminates the need for separate sensing and display components
2Adaptability or versatility
If separate sensing elements and display elements are stacked or composited, then the functions of detecting and displaying human sensory information can be performed, but the weight and power consumption increase
Solution Approach 1:
The patent merges separate piezoelectric sensing elements and luminescent display elements into a single integrated material system. The piezoelectric polymer matrix incorporates luminescent quantum dots, creating one material that simultaneously performs sensing (via piezoelectric effect) and display (via luminescence) functions, thereby reducing device complexity while maintaining multifunctionality
Solution Approach 2:
The invention uses composite materials by combining piezoelectric polymer chains with luminescent quantum dots in a unified structure. This composite approach allows the material to exhibit both piezoelectric properties (for sensing) and luminescent properties (for display) while maintaining a lightweight form factor
3Adaptability or versatility
If separate sensing elements and display elements are stacked or composited, then the functions of detecting and displaying human sensory information can be performed, but the power consumption increases
Solution Approach 1:
The piezoelectric polymer matrix generates electrical signals automatically in response to mechanical stress, eliminating the need for external power sources to drive sensing functions. The luminescent quantum dots can be stimulated by these generated electrical signals to produce visual output, creating a self-powered system that reduces overall power consumption compared to separate powered sensing and display devices
4Productivity
If miniaturization is used to increase integration, then more functions can be performed in a smaller space, but the processing capability for massive human information data is limited
Solution Approach 1:
The patent changes the fundamental parameters of the material system by incorporating luminescent quantum dots with specific size distributions and compositions into the piezoelectric polymer matrix. This allows the material to simultaneously handle multiple types of information (mechanical, electrical, optical) with high processing capability while maintaining a relatively simple single-material structure
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
The SPL material allows for efficient visualization of various input signals, such as sound, touch, and temperature, making it suitable for next-generation wearable synesthesia elements, reducing the need for separate sensing and display components and minimizing power consumption.
Implementation Method 1
a mechanical function of artificial synesthesia can be implemented using a dielectric piezoelectric material
Implementation Method 2
an optical function thereof can be implemented using a semiconductor light-emitting material
Data Source
AI summary
There is provided a method of preparing a synchronized piezoelectric and luminescence material. The method includes mixing a solution (a) including light-emitting particles or precursors thereof and a solution (b) including ligands having a piezoelectric property in a polar solvent; and optionally, mixing a solution (c) including ligands having a piezoelectric property in an antisolvent together with the solution (a) and the solution (b), if necessary.