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Metal-Assisted Electrochemical Nanoimprinting of Porous and Solid Silicon Wafers
Published on: February 8, 2022
Formation of silicon sheet on a rotating substrate
Jaewoo Lee1, Changbum Lee, Joonsoo Kim
1Department of Materials Science and Engineering, Korea University, Seoul 136-713, Korea.
Journal of Nanoscience and Nanotechnology
|August 2, 2012
Summary
Spin casting offers a viable method for producing polycrystalline silicon sheets for solar cells. This study validates the process through simulations and experiments, confirming the feasibility of fabricating rectangular silicon sheets.
Area of Science:
- Materials Science
- Chemical Engineering
- Solid State Physics
Background:
- Fabrication of polycrystalline silicon sheets is crucial for solar cell production.
- Understanding melt flow and solidification is key to controlling sheet properties.
Purpose of the Study:
- To investigate a spin casting process for polycrystalline silicon sheets.
- To identify parameters controlling sheet thickness and morphology.
- To model and simulate the spin casting process for silicon.
Main Methods:
- Development of a computational model for spin casting.
- Computer simulations to study melt flow and solidification.
- Experimental verification of simulation predictions.
- Microstructural analysis of fabricated silicon sheets.
Main Results:
- Spin casting is a feasible method for producing rectangular silicon sheets.
- Mold rotation speed and substrate morphology influence sheet characteristics.
- Simulation results align with experimental findings.
- Microstructural analysis revealed long columnar structures.
Conclusions:
- The spin casting process is confirmed as a viable technique for fabricating silicon sheets for solar cells.
- The developed computational model aids in understanding and optimizing the process.
- Appropriate control of experimental conditions enables the production of desired sheet dimensions.
