CN107887049A - 一种太阳能电池正极浆料用超细银浆的制备方法 - Google Patents
一种太阳能电池正极浆料用超细银浆的制备方法 Download PDFInfo
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000008367 deionised water Substances 0.000 claims abstract description 4
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 4
- 239000011259 mixed solution Substances 0.000 claims abstract description 4
- TZBAVQKIEKDGFH-UHFFFAOYSA-N n-[2-(diethylamino)ethyl]-1-benzothiophene-2-carboxamide;hydrochloride Chemical compound [Cl-].C1=CC=C2SC(C(=O)NCC[NH+](CC)CC)=CC2=C1 TZBAVQKIEKDGFH-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003643 water by type Substances 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract 2
- 238000001035 drying Methods 0.000 claims description 12
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 238000006722 reduction reaction Methods 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 abstract description 3
- 239000004065 semiconductor Substances 0.000 abstract description 2
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Abstract
本发明涉及半导体材料制备方法技术领域，具体涉及一种太阳能电池正极浆料用超细银浆的制备方法。一种太阳能电池正极浆料用超细银浆的制备方法，将4.25g AgNO3和13.125g抗坏血酸溶于50mL去离子水中，配成AgNO3和抗坏血酸溶液，并将0.425g的聚乙二醇4000溶于AgNO3溶液；将反应液的pH值调至3；将抗坏血酸溶液滴加到硝酸银的混合溶液中使之反应l0～20min；反应完全后，沉淀、过滤，用去离子水和无水乙醇分别清洗，干燥，过500目筛，得到银粉。将银粉与玻璃粉研磨混合；将有机载体制成浆料；刷印到硅片上；空气中放置5～10min．待其流平后干燥后保温。本发明选用化学还原法制备太阳能电池正极浆料，本方法操作简单，设备要求不高，易于大范围推广。
Description
技术领域
本发明涉及半导体材料制备方法技术领域，具体涉及一种太阳能电池正极浆料用超细银浆的制备方法。
背景技术
银粉因其良好的导热导电性能，广泛用于电子浆料。在选择银粉时，要考虑银粉的松装密度、比表面积和抗腐蚀等性能，但这些性能都依赖银粉的粒度和形貌。传统厚膜银浆中银粉的粒度一般要求在微米级以上，但太阳能电池正极栅线非常窄，对银粉性能要求更苛刻。若银粉粒度太大，印刷时不能完全通过丝网，烧结膜容易出现孔洞，从而影响导电性；若银粉粒度过小，会降低银浆中的银含量。
银粉的制备方法很多，主要有电子束照射法、直流电弧热等离子法。、微波等离子体法、机械化学合成法、喷雾热分解法和电解法等，但是这些方法具有耗能大、需要特殊的设备和对环境要求苛刻等缺点。而液相化学还原法由于设备简单，工艺条件易于控制，且成本低，易于批量生产，成为目前广泛使用的方法。但液相还原法制备银粉过程中，银粉颗
粒比表面积大，极易团聚。
发明内容
本发明旨在提出一种太阳能电池正极浆料用超细银浆的制备方法。
本发明的技术方案在于：
一种太阳能电池正极浆料用超细银浆的制备方法，采用如下步骤：
步骤1：银粉的制备：
将4.25g AgNO3和13.125g抗坏血酸分别溶于50mL去离子水中，配成AgNO3和抗坏血酸溶液，并将0.425g的聚乙二醇4000溶于AgNO3溶液；将反应液的pH值调至3；在磁力搅拌条件下将抗坏血酸溶液滴加到硝酸银的混合溶液中使之反应l0～20min；反应完全后，沉淀、过滤，用去离子水和无水乙醇分别清洗，干燥，过500目筛，得到银粉；
步骤2：银浆的制备：
（1）将银粉与玻璃粉研磨混合；
（2）将有机载体加入并研磨均匀，制成浆料；
（3）将调制的浆料刷印到硅片上；
（4）将印刷好的试样在空气中放置5～10min．待其流平后干燥后保温。
优选地，所述的步骤1中干燥温度为60℃，干燥时间2h。
优选地，所述的将PH值调为3采用浓硝酸或者浓氨水。
优选地，所述的银粉与玻璃粉的混合质量比87.5：12.5。
或者优选地，所述的步骤2（4）中干燥温度为150℃，干燥时间30min。
或者优选地，所述的步骤2（4）中保温时的温度为400℃，保温时间30min。
本发明的技术效果在于：
本发明选用化学还原法制备太阳能电池正极浆料，本方法操作简单，设备要求不高，易于大范围推广。
具体实施方式
一种太阳能电池正极浆料用超细银浆的制备方法，采用如下步骤：
步骤1：银粉的制备：
将4.25g AgNO3和13.125g抗坏血酸分别溶于50mL去离子水中，配成AgNO3和抗坏血酸溶液，并将0.425g的聚乙二醇4000溶于AgNO3溶液；将反应液的pH值调至3；在磁力搅拌条件下将抗坏血酸溶液滴加到硝酸银的混合溶液中使之反应l0～20min；反应完全后，沉淀、过滤，用去离子水和无水乙醇分别清洗，干燥，过500目筛，得到银粉；
步骤2：银浆的制备：
（1）将银粉与玻璃粉研磨混合；
（2）将有机载体加入并研磨均匀，制成浆料；
（3）将调制的浆料刷印到硅片上；
（4）将印刷好的试样在空气中放置5～10min．待其流平后干燥后保温。
其中，步骤1中干燥温度为60℃，干燥时间2h。将PH值调为3采用浓硝酸或者浓氨水。银粉与玻璃粉的混合质量比87.5：12.5。步骤2（4）中干燥温度为150℃，干燥时间30min。步骤2（4）中保温时的温度为400℃，保温时间30min。
Claims (6)
1.一种太阳能电池正极浆料用超细银浆的制备方法，其特征在于：采用如下步骤：
步骤1：银粉的制备：
将4.25g AgNO3和13.125g抗坏血酸分别溶于50mL去离子水中，配成AgNO3和抗坏血酸溶液，并将0.425g的聚乙二醇4000溶于AgNO3溶液；将反应液的pH值调至3；在磁力搅拌条件下将抗坏血酸溶液滴加到硝酸银的混合溶液中使之反应l0～20min；反应完全后，沉淀、过滤，用去离子水和无水乙醇分别清洗，干燥，过500目筛，得到银粉；
步骤2：银浆的制备：
（1）将银粉与玻璃粉研磨混合；
（2）将有机载体加入并研磨均匀，制成浆料；
（3）将调制的浆料刷印到硅片上；
（4）将印刷好的试样在空气中放置5～10min．待其流平后干燥后保温。
2.如权利要求1一种太阳能电池正极浆料用超细银浆的制备方法，其特征在于：所述的步骤1中干燥温度为60℃，干燥时间2h。
3.如权利要求1一种太阳能电池正极浆料用超细银浆的制备方法，其特征在于：所述的将PH值调为3采用浓硝酸或者浓氨水。
4.如权利要求1一种太阳能电池正极浆料用超细银浆的制备方法，其特征在于：所述的银粉与玻璃粉的混合质量比87.5：12.5。
5.如权利要求1一种太阳能电池正极浆料用超细银浆的制备方法，其特征在于：所述的步骤2（4）中干燥温度为150℃，干燥时间30min。
6.如权利要求1一种太阳能电池正极浆料用超细银浆的制备方法，其特征在于：所述的步骤2（4）中保温时的温度为400℃，保温时间30min。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215829A (zh) * | 2018-09-03 | 2019-01-15 | 苏州晶银新材料股份有限公司 | 一种太阳能电池用正面电极银浆、银粉及其制备方法 |
| CN112777935A (zh) * | 2019-11-11 | 2021-05-11 | 江西佳银科技有限公司 | 一种含纳米银玻璃粉及其制备方法 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215829A (zh) * | 2018-09-03 | 2019-01-15 | 苏州晶银新材料股份有限公司 | 一种太阳能电池用正面电极银浆、银粉及其制备方法 |
| CN109215829B (zh) * | 2018-09-03 | 2020-12-15 | 苏州晶银新材料股份有限公司 | 一种太阳能电池用正面电极银浆、银粉及其制备方法 |
| CN112777935A (zh) * | 2019-11-11 | 2021-05-11 | 江西佳银科技有限公司 | 一种含纳米银玻璃粉及其制备方法 |
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