ICALEO 2009 Paper #M1108 (The Effective Energy Efficiency and the Over Filling Factor of Thin Film Ablation Process with Lasers of Different Beam Shape)
The Effective Energy Efficiency and the Over Filling Factor of Thin Film Ablation Process with Lasers of Different Beam Shape
Authors:
Keming Du, EdgeWave GmbH; Wurselen Germany
Presented at ICALEO 2009
Structuring and patterning of thin layer via selective laser ablation is one of the key technologies in production of display and photovoltaic. Concurrently, there are two ablation processes used in production of thin film solar: Scribing via selective ablation and edge isolation via deletion. Beside the wave length, the pulse length and the peak power, the beam profile of the laser is of essential importance for the efficiency of the ablation process and for the productivity. The most currently...$28.00
ICALEO 2009 Paper #M1107 (Optimization of the Structuring Processes of CI(G)S Thin-Film Solar Cells with an Ultrafast Picosecond Laser and a Special Beam Shaping Optics)
Optimization of the Structuring Processes of CI(G)S Thin-Film Solar Cells with an Ultrafast Picosecond Laser and a Special Beam Shaping Optics
Authors:
Erwin Steiger, Steiger LaserService; Maisach Germany
Michael Scharnagl, High Q Laser Innovation GmbH; Hohenems Austria
Matthias Kemnitzer, Munich University of Applied Sciences; Munchen Germany
Alexander Laskin, MolTech GmbH; Berlin Germany
Presented at ICALEO 2009
Low cost CuIn(Ga)Se2 (CI(G)S), CdTe and GaAs thin film solar cells with photosensitive film thicknesses in the range of a few microns - either on thick flat glass substrates or thin flexible substrates like plastic or metal foils - are gaining gr...$28.00
ICALEO 2009 Paper #M1106 (Lasers in the Green Revolution)
Lasers in the Green Revolution
Authors:
Jie Fu, J P Sercel Associates, Inc.; Manchester NH USA
Marco Mendes, J P Sercel Associates, Inc.; Manchester NH USA
Xiangyang Song, J P Sercel Associates, Inc.; Manchester NH USA
Cristian Porneala, J P Sercel Associates, Inc.; Manchester NH USA
Matt Hannon, J P Sercel Associates, Inc.; Manchester NH USA
Jeff Sercel, J P Sercel Associates, Inc.; Manchester NH USA
Presented at ICALEO 2009
Lasers are becoming increasingly important in the current global green revolution. Two areas of particular importance are light-emitting diodes (LEDs) and solar cells. LEDs are poised to revolutionize the gen...$28.00
ICALEO 2009 Paper #M1105 (Cutting Performance Comparison Between Low Power LPSS and sm Fiber Laser for Mono and Polycrystalline Silicon Wafers)
Cutting Performance Comparison Between Low Power LPSS and sm Fiber Laser for Mono and Polycrystalline Silicon Wafers
Authors:
Mohammed Naeem, GSI Group, Inc. - Laser Division; Rugby Great Britain
Presented at ICALEO 2009
Silicon is widely used in a number of industries but primarily in solar cells and in semiconductor manufacture, with growing applications in jewelry and entertainment goods. In the majority of applications the source material is in the form of wafers which are typically 0.2-1.5mm (thick and 100-300mm diameter. From the flat faces of the octagons they laser cut a flat rectangular wafer that is then further processed to become a solar cell. Cutting speed and yield are important ...$28.00
ICALEO 2009 Paper #M1104 (High Rate Laser Drilling and Texturing of Silicon)
High Rate Laser Drilling and Texturing of Silicon
Authors:
Henrikki Pantsar, Fraunhofer USA; Plymouth MI USA
Tim Lauterborn, Frauhofer Usa, Inc.; Plymouth MI USA
Annerose Knorz, Fraunhofer Institute for Solar Energy Systems; Freiburg Germany
Hans Herfurth, Fraunhofer Usa, Inc.; Plymouth MI USA
Stefan Heinemann, Fraunhofer Usa, Inc.; Plymouth MI USA
Presented at ICALEO 2009
Laser technology offers various opportunities for solar cell manufacturing. The key success factor for many of these is processing velocity. Applications such as surface texturing for light trapping and drilling for wrap through emitters require substantial amounts of featur...$28.00
ICALEO 2009 Paper #M1102 (Thin Film Solar Cell Scribing Using Water Jet-Guided Laser Technology)
Thin Film Solar Cell Scribing Using Water Jet-Guided Laser Technology
Authors:
Mathilde Gobet, Synova SA; Ecublens Switzerland
Nandor Vago, Synova Sa; Ecublens Switzerland
Michael Pavius, Synova Sa; Ecublens Switzerland
Michael Helmes, Synova Sa; Ecublens Switzerland
Alexandre Pauchard, Synova Sa; Ecublens Switzerland
Presented at ICALEO 2009
The water jet-guided laser technology has found a broad range of applications in the micromachining field. Its principle is to focus a laser beam into a hair-thin, low-pressure water jet, onto the sample. This hybrid system prevents heat damage to the material by cooling the cutting edges in between the l...$28.00
ICALEO 2009 Paper #M1101 (Advantages of using DPSS Nanosecond Laser with a Gaussian Beam Shape for Scribing Thin Film Photovoltaic Panels)
Advantages of using DPSS Nanosecond Laser with a Gaussian Beam Shape for Scribing Thin Film Photovoltaic Panels
Authors:
Ashwini Tamhankar, Spectra-Physics Lasers; Mountain View CA USA
Gonzalo Guadano, Spectra-Physics Lasers; Mountain View USA
James Bovatsek, Spectra-Physics Lasers; Mountain View CA USA
Rajesh Patel, Spectra-Physics Lasers; Mountain View CA USA
Presented at ICALEO 2009
Laser scribing of various thin film materials is a key process in manufacturing of thin film photovoltaic (PV) panels. In recent years, PV industry has adopted the use of high-power nanosecond-pulse diode pumped solid state (DPSS) Q-switch lasers to increase precision and th...$28.00
ICALEO 2009 Paper #M108 (Generation and Amplification of Ultra-short-pulsed Vacuum Ultraviolet Radiation)
Generation and Amplification of Ultra-short-pulsed Vacuum Ultraviolet Radiation
Authors:
Masahito Katto, University of Miyazaki; Miyazaki Japan
Atushi Yokotani, University of Miyazaki; Miyazaki Japan
Masanori Kaku, University of Miyazaki; Miyazaki Japan
Shoichi Kubodera, University of Miyazaki; Miyazaki Japan
Noriaki Miyanaga, Osaka University; Suita Japan
Presented at ICALEO 2009
We have been developing high intense vacuum ultraviolet (VUV) radiations for the advanced applications such as micro and precise processing and photochemical reactions. We had proposed a noval VUV laser system to generate sub-ps pulses at the wavelength of 126nm. A s...$28.00
ICALEO 2009 Paper #M107 (Use of Enclosed Thin Laminar Liquid Flows Above Ablation Area for Control of Ejected Material during Excimer Machining)
Use of Enclosed Thin Laminar Liquid Flows Above Ablation Area for Control of Ejected Material during Excimer Machining
Authors:
Colin Dowding, Loughborough University; Leicestershire Great Britain
Jonathan Lawrence, Wolfson School of Mechanical and Manufacturing Engineering; Loughborough Great Britain
Presented at ICALEO 2009
To observe excimer laser machining through enclosed thin liquid films and the effects thereof on debris control, new equipment was designed to contain a small control volume that can be supplied with an enclosed laminar 0.5 mm film of DI water to flow over the workpiece at a controlled flow rate. Using the same equipment, comparison with open laminar thin film...$28.00
ICALEO 2009 Paper #M106 (Optical Emission Imaging and Spectroscopy during Femtosecond Laser Ablation of Thin Metal Films on Flexible Polymer Substrates)
Optical Emission Imaging and Spectroscopy during Femtosecond Laser Ablation of Thin Metal Films on Flexible Polymer Substrates
Authors:
Jan F. Duesing, Laser Zentrum Hannover; Hannover Germany
David J. Hwang, University of California at Berkeley; Berkeley CA USA
Costas Grigoropoulos, University of California at Berkeley; Berkeley CA USA
Andreas Ostendorf, University of California at Berkeley; Berkeley CA USA
Rainer Kling, Laser Zentrum Hannover; Hannover Germany
Presented at ICALEO 2009
Thin film processes with lasers are becoming more and more important for various fields of technical applications, such as photo voltaics and flexible electron...$28.00
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