Abstract
The reactions between Ag pastes containing two types of PbO-based glass frits and an n-type (100) Si wafer during firing in air at 800 °C were investigated in order to understand the mechanism for the formation of inverted pyramìdal Ag crystallites at the Si interface as well as the effect of the PbO content of the glass frit on Ag crystallite formation. Inverted pyramidal Ag crystallites were formed by the precipitation of Ag atoms dissolved in fluidized glass during the subsequent cooling process after firing. PbO in the glass frit did not participate directly in the reaction with the Si wafer. However, its content had a strong influence on the reaction rate at the glass/Si interface and, thus, on the size and distribution of the Ag crystallites. The effect of the PbO content in the glass could be understood from the higher Ag solubility and lower viscosity of the glass at the firing temperature with increasing PbO content. Based on the experimental results, a model was proposed for the formation of Ag crystallites at the glass/Si interface during the firing process of screen-printed thick-film Ag metallization.
| Original language | English |
|---|---|
| Pages (from-to) | 307-312 |
| Number of pages | 6 |
| Journal | Metals and Materials International |
| Volume | 15 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2009 Apr 1 |
Fingerprint
Keywords
- Ag crystallite
- Ag thick-film contact
- Glass frit
- Interfacial reaction
- Si solar cells
ASJC Scopus subject areas
- Condensed Matter Physics
- Metals and Alloys
- Mechanics of Materials
- Materials Chemistry
Cite this
Role of PbO-based glass frit in Ag thick-film contact formation for crystalline Si solar cells. / Hong, Kyoung Kook; Cho, Sung Bin; Huh, Joo Youl; Park, Hyun Jung; Jeong, Ji Weon.
In: Metals and Materials International, Vol. 15, No. 2, 01.04.2009, p. 307-312.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Role of PbO-based glass frit in Ag thick-film contact formation for crystalline Si solar cells
AU - Hong, Kyoung Kook
AU - Cho, Sung Bin
AU - Huh, Joo Youl
AU - Park, Hyun Jung
AU - Jeong, Ji Weon
PY - 2009/4/1
Y1 - 2009/4/1
N2 - The reactions between Ag pastes containing two types of PbO-based glass frits and an n-type (100) Si wafer during firing in air at 800 °C were investigated in order to understand the mechanism for the formation of inverted pyramìdal Ag crystallites at the Si interface as well as the effect of the PbO content of the glass frit on Ag crystallite formation. Inverted pyramidal Ag crystallites were formed by the precipitation of Ag atoms dissolved in fluidized glass during the subsequent cooling process after firing. PbO in the glass frit did not participate directly in the reaction with the Si wafer. However, its content had a strong influence on the reaction rate at the glass/Si interface and, thus, on the size and distribution of the Ag crystallites. The effect of the PbO content in the glass could be understood from the higher Ag solubility and lower viscosity of the glass at the firing temperature with increasing PbO content. Based on the experimental results, a model was proposed for the formation of Ag crystallites at the glass/Si interface during the firing process of screen-printed thick-film Ag metallization.
AB - The reactions between Ag pastes containing two types of PbO-based glass frits and an n-type (100) Si wafer during firing in air at 800 °C were investigated in order to understand the mechanism for the formation of inverted pyramìdal Ag crystallites at the Si interface as well as the effect of the PbO content of the glass frit on Ag crystallite formation. Inverted pyramidal Ag crystallites were formed by the precipitation of Ag atoms dissolved in fluidized glass during the subsequent cooling process after firing. PbO in the glass frit did not participate directly in the reaction with the Si wafer. However, its content had a strong influence on the reaction rate at the glass/Si interface and, thus, on the size and distribution of the Ag crystallites. The effect of the PbO content in the glass could be understood from the higher Ag solubility and lower viscosity of the glass at the firing temperature with increasing PbO content. Based on the experimental results, a model was proposed for the formation of Ag crystallites at the glass/Si interface during the firing process of screen-printed thick-film Ag metallization.
KW - Ag crystallite
KW - Ag thick-film contact
KW - Glass frit
KW - Interfacial reaction
KW - Si solar cells
UR - http://www.scopus.com/inward/record.url?scp=67649124142&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649124142&partnerID=8YFLogxK
U2 - 10.1007/s12540-009-0307-1
DO - 10.1007/s12540-009-0307-1
M3 - Article
AN - SCOPUS:67649124142
VL - 15
SP - 307
EP - 312
JO - Metals and Materials International
JF - Metals and Materials International
SN - 1598-9623
IS - 2
ER -