Preparation of Highly Dispersed Ultrafine Silver Powders for Silver Paste on Solar Cell Front AITranslate
Abstract AITranslate
The ultrafine silver powders were prepared from AgNO3 by chemical liquid-phase reduction,with ascorbic acid as the reducing agent and carboxymethyl cellulose as the dispersant. The effects of feeding way,dispersant dosage,pH value and reaction temperature on silver powder properties were emphatically researched. The results show that feeding way and dispersant dosage directly affect the dispersity of silver powders. As pH value increases,the reaction particle size of silver powders becomes smaller while the dis- persity decreases. The reaction temperature shows a significant influence on the properties of silver pow- ders. Spherical,sphere-like and dendritic silver powders are respectively obtained at 30 ℃, 35~45 ℃ and 50 ℃. Meanwhile,the dispersity and tap density of silver powders decrease when the temperature increa- ses. The optimized preparation conditions are：the feeding way of adding AgNOa solution into reducing so- lution,m（CMC）/m（C6 He O6） value of 0. 015, pH value of 2 and reaction temperature of 30℃. Under the conditions,the highly dispersed ultrafine silver powders,with a tap density of 4.6 g/mL and a mean parti- cle size of 3.95 μm,can be prepared to meet the requirements of silver paste on solar cell front.
KeyWords AITranslate
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Basic Information:
DOI：
Chinese Library Classification Number:TF123.72[冶金工程—粉末冶金]
Citation Information:
The ultrafine silver powders were prepared from AgNO3 by chemical liquid-phase reduction,with ascorbic acid as the reducing agent and carboxymethyl cellulose as the dispersant. The effects of feeding way,dispersant dosage,pH value and reaction temperature on silver powder properties were emphatically researched. The results show that feeding way and dispersant dosage directly affect the dispersity of silver powders. As pH value increases,the reaction particle size of silver powders becomes smaller while the dis- persity decreases. The reaction temperature shows a significant influence on the properties of silver pow- ders. Spherical,sphere-like and dendritic silver powders are respectively obtained at 30 ℃, 35~45 ℃ and 50 ℃. Meanwhile,the dispersity and tap density of silver powders decrease when the temperature increa- ses. The optimized preparation conditions are：the feeding way of adding AgNOa solution into reducing so- lution,m（CMC）/m（C6 He O6） value of 0. 015, pH value of 2 and reaction temperature of 30℃. Under the conditions,the highly dispersed ultrafine silver powders,with a tap density of 4.6 g/mL and a mean parti- cle size of 3.95 μm,can be prepared to meet the requirements of silver paste on solar cell front.
quote
| GB/T 7714-2015 | [1] CHEN Ying-long, GAN Wei-ping, LIU Xiao-gang, et al. Preparation of Highly Dispersed Ultrafine Silver Powders for Silver Paste on Solar Cell Front[J]. Rare Metals and Cemented Carbides, 2013(1): 35-40. |
| MLA | [1] CHEN Ying-long, et al., "Preparation of Highly Dispersed Ultrafine Silver Powders for Silver Paste on Solar Cell Front." Rare Metals and Cemented Carbides, no. 1, 2013, pp. 35-40. |
| APA | [1] CHEN Ying-long, GAN Wei-ping, LIU Xiao-gang, GUO Gui-quan, & XIANG Feng. (2013). Preparation of Highly Dispersed Ultrafine Silver Powders for Silver Paste on Solar Cell Front. Rare Metals and Cemented Carbides(1), 35-40. |
| IEEE | [1] CHEN Ying-long, GAN Wei-ping, LIU Xiao-gang, GUO Gui-quan, and XIANG Feng, "Preparation of Highly Dispersed Ultrafine Silver Powders for Silver Paste on Solar Cell Front," Rare Metals and Cemented Carbides, no. 1, pp. 35-40, 2013. keywords: {silver paste on solar cell front;ultrafine silver powder;carboxymethyl cellulose;chemical reduc-tion} |