CN104018219B - 一种窄黑边高效多晶硅片的制备方法 - Google Patents
一种窄黑边高效多晶硅片的制备方法 Download PDFInfo
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- CN104018219B CN104018219B CN201410271429.4A CN201410271429A CN104018219B CN 104018219 B CN104018219 B CN 104018219B CN 201410271429 A CN201410271429 A CN 201410271429A CN 104018219 B CN104018219 B CN 104018219B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 114
- 239000013078 crystal Substances 0.000 claims abstract description 99
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 64
- 239000010703 silicon Substances 0.000 claims abstract description 64
- 239000004576 sand Substances 0.000 claims abstract description 57
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 42
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000011521 glass Substances 0.000 claims abstract description 41
- 239000002210 silicon-based material Substances 0.000 claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 30
- 238000000576 coating method Methods 0.000 claims abstract description 30
- 239000012535 impurity Substances 0.000 claims abstract description 26
- 238000005507 spraying Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000010453 quartz Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000011449 brick Substances 0.000 claims description 36
- 238000009413 insulation Methods 0.000 claims description 32
- 238000007581 slurry coating method Methods 0.000 claims description 25
- 239000006004 Quartz sand Substances 0.000 claims description 22
- 239000007787 solid Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000002425 crystallisation Methods 0.000 claims description 9
- 230000008025 crystallization Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 238000004781 supercooling Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 229910021645 metal ion Inorganic materials 0.000 claims description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 238000009792 diffusion process Methods 0.000 abstract description 7
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 56
- 239000000126 substance Substances 0.000 description 16
- 238000005266 casting Methods 0.000 description 9
- 230000009466 transformation Effects 0.000 description 6
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 241000233805 Phoenix Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
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- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
序号实验组 | 电池光电转换效率 | 杂质富集层宽度 |
1实例一所得硅片 | 17.8% | 4.9mm |
2实例二所得硅片 | 17.76% | 5.3mm |
3实例三所得硅片 | 17.78% | 5.6mm |
4实例四所得硅片 | 17.65% | 5.7mm |
5普通硅片一 | 17.45% | 18.5mm |
6普通硅片二 | 16.87% | 17.2mm |
Claims (3)
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CN104018219B true CN104018219B (zh) | 2016-08-24 |
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Families Citing this family (20)
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CN104294360B (zh) * | 2014-10-28 | 2017-02-15 | 江苏美科硅能源有限公司 | 一种保温铸锭炉以及使用保温铸锭炉铸锭的方法 |
CN104651931A (zh) * | 2014-10-29 | 2015-05-27 | 江苏美科硅能源有限公司 | 一种可控制形核、杂质扩散的多晶铸锭用石英坩埚及其制备方法 |
CN104328490B (zh) * | 2014-11-07 | 2016-10-05 | 江苏美科硅能源有限公司 | 一种无黑边高效多晶硅锭的制备方法 |
CN104651932B (zh) * | 2015-03-17 | 2017-11-07 | 江西中昱新材料科技有限公司 | 一种多晶石英陶瓷坩埚及其制备方法 |
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CN105063751A (zh) * | 2015-09-17 | 2015-11-18 | 晶科能源有限公司 | 一种铸锭制作方法 |
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CN106048720B (zh) * | 2016-08-09 | 2018-10-12 | 浙江恒都光电科技有限公司 | 太阳能级多晶硅片的制备方法 |
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CN107190313A (zh) * | 2017-05-15 | 2017-09-22 | 南通综艺新材料有限公司 | 一种多晶铸锭半熔高效坩埚工艺 |
CN107299392A (zh) * | 2017-07-12 | 2017-10-27 | 晶科能源有限公司 | 一种高致密石英坩埚阻挡层制备方法和多晶铸锭炉 |
CN107326445A (zh) * | 2017-07-24 | 2017-11-07 | 宜昌南玻硅材料有限公司 | 一种改变坩埚结构以提高铸锭质量的方法 |
CN107619303A (zh) * | 2017-09-11 | 2018-01-23 | 江西中昱新材料科技有限公司 | 一种多晶坩埚及其制备方法 |
CN107974710A (zh) * | 2017-11-21 | 2018-05-01 | 浙江师范大学 | 基于石英籽晶的高性能多晶硅的生长方法 |
CN109402733A (zh) * | 2018-09-26 | 2019-03-01 | 江苏美科硅能源有限公司 | 一种低金属污染的全熔高效硅锭的制备方法 |
CN109385665A (zh) * | 2018-11-23 | 2019-02-26 | 包头美科硅能源有限公司 | 一种适合铸造单晶使用的坩埚制备方法 |
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- 2014-06-17 CN CN201410271429.4A patent/CN104018219B/zh active Active
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