2016 Fiscal Year Final Research Report
Production of Mono-Dispersed Particles for Spherical Silicon Solar Cell by Applying Electromagnetic Pinch Force and Electrification of Capillary Jet
| Project/Area Number |
25709071
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | Kagawa National College of Technology |
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Principal Investigator |
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| Research Collaborator |
BOJAREVICS Valdis University of Greenwich, Department of Mathematical, Reader
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 球状シリコン太陽電池 / 材料電磁プロセッシング / 液ジェット / 金属粒子 |
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| Outline of Final Research Achievements |
Manufacturing process of mono-dispersed silicon balls for spherical solar cell was investigated. A capillary jet of molten metal was issued from a nozzle at the bottom of a crucible, and the jet was split into droplets. The droplets were solidified during falling and metal particles were obtained. In order to produce mono-dispersed particles, there are two important points: (1) splitting the jet at the same interval, (2) to prevent the droplets from colliding with each other during falling. An electromagnetic pinch force was applied intermittently to the capillary jet to generate a regular periodic variation on the surface, resulting in mono-dispersed droplets. The droplets were electrically charged by a high electric voltage applied to an electrode surrounding the jet. The coulomb repulsive force acting on the charged droplets prevents them from coalescence.
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| Free Research Field |
金属生産工学
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