Friction Nanogenerator Synaptic Transistor With Shared Dielectric Layer
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Solution Overview
Problem
Existing bionic synaptic transistors require an extra power supply for operation, limiting their application in flexible and wearable devices.
Innovation Solution
A friction nano power generation synaptic transistor is developed, integrating a friction nano generator with a synaptic transistor, utilizing a shared intermediate layer as both a dielectric layer and intermediate layer, which generates a pulse voltage upon friction, driving the synaptic transistor without an external power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bionic synaptic transistor is integrated with a stimulation acquisition end through an extra complex circuit, then the synaptic function can be achieved, but the device complexity increases and additional power supply is required
Solution Approach 1:
The friction nano generator and synaptic transistor are merged into a single integrated device structure. The shared intermediate layer serves dual purposes as both the dielectric layer of the synaptic transistor and the intermediate layer of the friction nano generator, eliminating the need for separate circuits and power supplies while maintaining synaptic functionality.
Solution Approach 2:
The shared intermediate layer performs multiple functions simultaneously: it acts as the dielectric layer for the synaptic transistor, the intermediate layer for the friction nano generator, and provides mechanical support. This multi-functionality reduces device complexity while preserving all necessary synaptic operations.
2Device complexity
If a friction nano generator is integrated with a synaptic transistor using a shared intermediate layer, then the device complexity is reduced and power supply is eliminated, but the manufacturing precision requirements increase
Solution Approach 1:
The friction nano generator and synaptic transistor share the same intermediate layer, reducing the total number of layers and interfaces that need to be manufactured separately. This merging approach actually reduces cumulative manufacturing errors compared to integrating two separate devices.
Solution Approach 2:
The shared intermediate layer self-aligns the friction nano generator and synaptic transistor structures during the manufacturing process, as both components are built on the same substrate and layer sequence, eliminating the need for complex alignment procedures between separate devices.
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 integrated device is light, flexible, and self-powered, enabling bionic synaptic functions such as signal generation and response to external stimulation without additional power, enhancing excitatory postsynaptic currents.
Implementation Method 1
In a case where the negative friction layer is rubbed by using a positive friction material or the positive friction layer is rubbed by using a negative friction material, the shared intermediate layer generates a pulse voltage
Implementation Method 2
the shared intermediate layer is used as a dielectric layer of the synaptic transistor
Data Source
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AI summary
Provided is a friction nano power generation synaptic transistor. The friction nano power generation synaptic transistor includes a friction nano generator, a synaptic transistor, a substrate, an electrode layer formed on the substrate, a shared intermediate layer formed on the electrode layer; a synaptic transistor active layer, a source electrode, and a drain electrode which are formed on the shared intermediate layer; and a positive friction layer and a negative friction layer formed on the shared intermediate layer, where the shared intermediate layer is used as a dielectric layer of the synaptic transistor and an intermediate layer of the friction nano generator.