Abstract
Femtosecond laser (FS-laser) microstructuring of metals has become a promising tool because of its non-contact nature, which allows the micromachining and direct processing of materials with a minimized volume of heat-affected zone for electro-optics applications such as light emitting diodes (LED) and solar photovoltaic (PV) lighting. This study presents ultra-short pulse (10 -15 sec) FS-laser processing. Through integrating the laser source, optical system and dynamic control modules, the materials of metals with micro-scale or nano-scale structures can be fabricated. In traditional processing such as semiconductor processing, development, exposure and etching necessitate expensive equipment and time-consuming tasks. With FS-laser processing, high-precision patterns are obtained, which will be a great benefit to keeping costs down. In this study, the wavelengths of FS-laser ablation are employed using visible and infrared light. To make a breakthrough in electro-optics processes, the CIGS thin-film of solar cells in metal process can be easily produced by the FS-laser. The ablation speed of the FS-laser for thin film layer CIGS solar cells can reach 2000 mm/s which is faster than the current Nd:YAG laser machine (-1000 mm/s). On the other hand, the minimum size of metal lines can be controlled to a value that is lower than 40 μm. Furthermore, green energy can be effectively developed for the future.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of Precision Engineering and Nanotechnology |
| Pages | 263-268 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2012 Jun 29 |
| Event | 4th International Conference of Asian Society for Precision Engineering and Nanotechnology, ASPEN 2011 - Hong Kong, China Duration: 2011 Nov 16 → 2011 Nov 18 |
Publication series
| Name | Key Engineering Materials |
|---|---|
| Volume | 516 |
| ISSN (Print) | 1013-9826 |
Other
| Other | 4th International Conference of Asian Society for Precision Engineering and Nanotechnology, ASPEN 2011 |
|---|---|
| Country | China |
| City | Hong Kong |
| Period | 11/11/16 → 11/11/18 |
Fingerprint
Keywords
- CIGS thin-film
- Electro-optics
- Electronics
- Femtosecond laser
- Metals
- Solar cells
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Study of metals by femtosecond laser processing for electro-optics applications. / Chang, Cho Wei; Chang, Tien Li; Tsai, Ting Kai; Ting, Chia Jen; Wang, Chien Ping; Chou, Chang Pin.
Proceedings of Precision Engineering and Nanotechnology. 2012. p. 263-268 (Key Engineering Materials; Vol. 516).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Study of metals by femtosecond laser processing for electro-optics applications
AU - Chang, Cho Wei
AU - Chang, Tien Li
AU - Tsai, Ting Kai
AU - Ting, Chia Jen
AU - Wang, Chien Ping
AU - Chou, Chang Pin
PY - 2012/6/29
Y1 - 2012/6/29
N2 - Femtosecond laser (FS-laser) microstructuring of metals has become a promising tool because of its non-contact nature, which allows the micromachining and direct processing of materials with a minimized volume of heat-affected zone for electro-optics applications such as light emitting diodes (LED) and solar photovoltaic (PV) lighting. This study presents ultra-short pulse (10 -15 sec) FS-laser processing. Through integrating the laser source, optical system and dynamic control modules, the materials of metals with micro-scale or nano-scale structures can be fabricated. In traditional processing such as semiconductor processing, development, exposure and etching necessitate expensive equipment and time-consuming tasks. With FS-laser processing, high-precision patterns are obtained, which will be a great benefit to keeping costs down. In this study, the wavelengths of FS-laser ablation are employed using visible and infrared light. To make a breakthrough in electro-optics processes, the CIGS thin-film of solar cells in metal process can be easily produced by the FS-laser. The ablation speed of the FS-laser for thin film layer CIGS solar cells can reach 2000 mm/s which is faster than the current Nd:YAG laser machine (-1000 mm/s). On the other hand, the minimum size of metal lines can be controlled to a value that is lower than 40 μm. Furthermore, green energy can be effectively developed for the future.
AB - Femtosecond laser (FS-laser) microstructuring of metals has become a promising tool because of its non-contact nature, which allows the micromachining and direct processing of materials with a minimized volume of heat-affected zone for electro-optics applications such as light emitting diodes (LED) and solar photovoltaic (PV) lighting. This study presents ultra-short pulse (10 -15 sec) FS-laser processing. Through integrating the laser source, optical system and dynamic control modules, the materials of metals with micro-scale or nano-scale structures can be fabricated. In traditional processing such as semiconductor processing, development, exposure and etching necessitate expensive equipment and time-consuming tasks. With FS-laser processing, high-precision patterns are obtained, which will be a great benefit to keeping costs down. In this study, the wavelengths of FS-laser ablation are employed using visible and infrared light. To make a breakthrough in electro-optics processes, the CIGS thin-film of solar cells in metal process can be easily produced by the FS-laser. The ablation speed of the FS-laser for thin film layer CIGS solar cells can reach 2000 mm/s which is faster than the current Nd:YAG laser machine (-1000 mm/s). On the other hand, the minimum size of metal lines can be controlled to a value that is lower than 40 μm. Furthermore, green energy can be effectively developed for the future.
KW - CIGS thin-film
KW - Electro-optics
KW - Electronics
KW - Femtosecond laser
KW - Metals
KW - Solar cells
UR - http://www.scopus.com/inward/record.url?scp=84862751789&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84862751789&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.516.263
DO - 10.4028/www.scientific.net/KEM.516.263
M3 - Conference contribution
AN - SCOPUS:84862751789
SN - 9783037854280
T3 - Key Engineering Materials
SP - 263
EP - 268
BT - Proceedings of Precision Engineering and Nanotechnology
ER -