Femtosecond laser photochemical reduction of silver ion solution for micro-welding of transparent and hard materials for solar cell packaging
Transparent and hard materials are extensively employed in the fabrication of integrated devices. Ultrafast laser micro-welding technology serves as an efficient method for joining such materials. However, initiating multiphoton absorption in transparent materials necessitates high pulse energy, and...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-08-01
|
| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525007762 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Transparent and hard materials are extensively employed in the fabrication of integrated devices. Ultrafast laser micro-welding technology serves as an efficient method for joining such materials. However, initiating multiphoton absorption in transparent materials necessitates high pulse energy, and a polished surface forming optical contact is crucial for ensuring reliable laser welding. Consequently, achieving high-quality connections of transparent materials under non-optical contact conditions presents a challenge. In this study, a silver ion solution was utilized as an intermediate layer for femtosecond laser micro-welding of glass and heterogeneous materials. The findings demonstrated that photochemically reduced silver nanoclusters increased the shear strength of glass to 27.36 MPa at a low input energy density (2.4J/cm2). Furthermore, the quality of the connection and sealing reliability were assessed through thermal shock and waterproof evaluations. The results indicated that femtosecond laser welding assisted by a silver ion solution is an effective and energy-efficient technique for achieving high-quality connections of non-optically contacted transparent materials, offering a promising approach for applications such as solar cell packaging. |
|---|---|
| ISSN: | 0264-1275 |