Development of high-quality silicon solar cells using nucleation control by external factors and material cycling process
Project/Area Number |
26289281
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Metal making/Resorce production engineering
|
Research Institution | Kyushu University |
Principal Investigator |
|
Co-Investigator(Kenkyū-buntansha) |
成田 一人 大阪教育大学, 教育学部, 准教授 (50404017)
|
Project Period (FY) |
2014-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
|
Keywords | 結晶成長 / ファセット / 一方向凝固 / 過冷度 / 太陽光発電 / 双晶 / 金属生産工学 / 電子・電気材料 / ファセット系結晶 / ファセット成長 / ファセット界面 |
Outline of Final Research Achievements |
Control technique of a silicon crystal size and morphology focusing on a nucleation and an initial solidification stage and control theory of a remelting and solidification structure of cutting chips are investigated in polycrystalline silicon for a solar cell. It was revealed that the whole crystal grain size of the ingot was significantly influenced by the supercooling at a nucleation and an initial solidification stage in the unidirectional solidification of facet material. At this time, the convection was forcefully introduced in the liquid region of specimen by applying a low frequency motion from the outside. That leads the reduction of frequency of nucleation at the initial solidification and eventually contributes the preferential direction growth and development of silicon crystals.
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Report
(5 results)
Research Products
(10 results)