Nanomaterial Assembly Using Blister Laser Transfer and Imaging Alignment
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Solution Overview
Problem
Existing methods for transferring nanomaterials lack precise orientation and positioning capabilities, resulting in suboptimal quality and control over the deposition of 2D nanomaterial structures.
Innovation Solution
A method and device utilizing blister-based laser-induced forward transfer with simultaneous scanning and imaging, allowing for precise alignment and orientation of nanomaterials on a receiver, using a transparent plate with a sacrificial layer and a movable stage for targeted ejection and deposition of nanomaterials, including metals, graphene, and other materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional laser-induced forward transfer is used, then nanomaterial transfer is achieved, but precise orientation and positioning control is lacking
Solution Approach 1:
The system incorporates real-time imaging feedback to monitor the position and orientation of the donor substrate relative to the receiver substrate. The imaging system provides continuous visual feedback that enables dynamic adjustment of transfer parameters, ensuring precise positioning and orientation control during the nanomaterial transfer process.
Solution Approach 2:
The system employs dynamic control of the donor and receiver substrates, allowing real-time adjustment of their relative positions and orientations. The movable stage and imaging system work together to dynamically optimize the alignment between donor and receiver during transfer, enabling precise positioning without requiring overly complex pre-alignment mechanisms.
2Adaptability or versatility
If donor and receiver are locked together, then transfer stability is improved, but stacked layers cannot be formed
Solution Approach 1:
The system replaces the locked configuration with dynamic, independently controllable positioning of the donor and receiver substrates. The movable stage allows precise relative movement between substrates while maintaining stable transfer conditions, enabling the formation of stacked layers by sequentially transferring multiple nanomaterial layers with controlled positioning.
3Manufacturing precision
If vacuum environment is used, then transfer quality is improved, but device complexity and operational constraints increase
Solution Approach 1:
The imaging system acts as an intermediary that enables precise transfer control in ambient environments. By providing real-time visual feedback on the transfer process, the imaging system compensates for the lack of vacuum environment, allowing high-quality deposition to be achieved without requiring complex vacuum systems, thereby improving ease of operation while maintaining deposition quality.
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 the creation of high-quality, precisely oriented 2D and 3D nanomaterial structures with atomic-scale precision, improving the accuracy and control of nanomaterial deposition across various substrates and environments.
Implementation Method 1
irradiation of the sacrificial layer through the transparent layer by an irradiation beam so that a part of the donor film is transferred from the plate and received by the receiver
Implementation Method 2
providing a pulsed laser configured to create a metal blister from glass layer and thus to eject the deposited 2D nanomaterial and to transmit thereof to the receiver layer
Data Source
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AI summary
The present invention relates to a method and device capable to form a nanomaterial structure (13) on a receiver (14) by transfer of nanomaterial from a donor film. In some embodiment, the transfer can be provided by laser induced forward transfer, more preferably by blister based laser induced forward transfer. The method further comprises a simultaneous scanning of the donor film (12) or the receiver (14) so that, a computer driven means for moving the receiver (14) and the donor film (12) can form high precision nanomaterial structure (13). In a preferred embodiment, the simultaneous scanning can be provided by an imaging laser generating high harmonic waves which are detected by a detector. In yet another embodiment, the receiver (14) and/or donor film (12) can be further scanned by a broadband light source(s). In a preferred embodiment, imaging laser and/or light source(s) are emitting polarized light to determine orientation of the nanoparticle deposited on the receiver (14) and forming the nanomaterial structure (13).