High speed, intermediate resolution, large area laser beam induced current imaging and laser scribing system for photovoltaic devices and modules

2016 ◽  
Vol 87 (9) ◽  
pp. 093708 ◽  
Author(s):  
Adam B. Phillips ◽  
Zhaoning Song ◽  
Jonathan L. DeWitt ◽  
Jon M. Stone ◽  
Patrick W. Krantz ◽  
...  
Keyword(s):  
Laser Beam ◽  
High Speed ◽  
Induced Current ◽  
Photovoltaic Devices ◽  
Large Area ◽  
Laser Scribing

Investigation of degradation mechanisms of perovskite-based photovoltaic devices using laser beam induced current mapping

2015 ◽  
Author(s):  
Zhaoning Song ◽  
Suneth C. Watthage ◽  
Adam B. Phillips ◽  
Geethika K. Liyanage ◽  
Rajendra R. Khanal ◽  
...  
Keyword(s):  
Laser Beam ◽  
Induced Current ◽  
Degradation Mechanisms ◽  
Photovoltaic Devices

High-speed mapping of grown-in defects and their influence in large-area silicon photovoltaic devices

2000 ◽  
Vol 210 (1-3) ◽  
pp. 346-350 ◽  
Author(s):  
Bhushan Sopori ◽  
Chen Wei ◽  
Zhang Yi ◽  
Jamal Madjdpour
Keyword(s):  
High Speed ◽  
Photovoltaic Devices ◽  
Large Area

Continuous-wave laser-induced diffusion in silicon

1985 ◽  
Vol 63 (6) ◽  
pp. 886-889
Author(s):  
P. Schvan ◽  
R. E. Thomas
Keyword(s):  
Laser Beam ◽  
High Speed ◽  
Continuous Wave ◽  
Scanning Speed ◽  
Processing Technique ◽  
Continuous Wave Laser ◽  
Large Area ◽  
Incident Laser Power ◽  
Cw Laser ◽  
Novel Processing

A novel processing technique to form shallow p-n junctions using a continuous-wave (cw) laser beam scanned over a large area is described. The results of computer simulation of the heat-flow problem were used to find the optimum condition for cw laser-induced liquid-phase diffusion. High-speed scanning of the laser beam and the application of phosphosilica glass as a diffusion source, which also acts as an antireflective coat, are essential parts of the process. The optimum incident laser power was around 7.5 W with a scanning speed of 100 cm/s. This process produced junction depths of around 0.2–0.4 μm. Reliable contacts to the shallow diffusions were made using tungsten silicide formed prior to the aluminum deposition. The p-n junctions formed by this technique showed good diode characteristics with breakdown voltages over 35 V and leakage current around 10−5 A/cm2.

HIGH EFFICIENCY, LARGE-AREA PHOTOVOLTAIC DEVICES USING AMORPHOUS Si : F : H ALLOY

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-463-C4-466
Author(s):  
A. Madan ◽  
W. Czubatyj ◽  
J. Yang ◽  
J. McGill ◽  
S. R. Ovshinsky
Keyword(s):  
High Efficiency ◽  
Photovoltaic Devices ◽  
Large Area ◽  
Amorphous Si

High Resolution Displacement of Functional Groups onto Fluorocarbon Resin Surface by Using ArF Excimer Laser

1996 ◽  
Vol 451 ◽  
Author(s):  
T. Shimizu ◽  
M. Murahara
Keyword(s):  
Contact Angle ◽  
High Resolution ◽  
Laser Beam ◽  
Thin Layer ◽  
Functional Groups ◽  
Excimer Laser ◽  
Laser Fluence ◽  
Large Area ◽  
Three Solutions ◽  
Arf Excimer Laser

ABSTRACTA Fluorocarbon resin surface was selectively modified by irradiation with a ArF laser beam through a thin layer of NaAlO2, B(OH)3, or H2O solution to give a hydrophilic property. As a result, with low fluence, the surface was most effectively modified with the NaAlO2 solution among the three solutions. However, the contact angle in this case changed by 10 degrees as the fluence changed only 1mJ/cm2. When modifying a large area of the surface, high resolution displacement could not be achieved because the laser beam was not uniform in displacing functional groups. Thus, the laser fluence was successfully made uniform by homogenizing the laser beam; the functional groups were replaced on the fluorocarbon resin surface with high resolution, which was successfully modified to be hydrophilic by distributing the laser fluence uniformly.

scholarly journals High-speed high-efficiency large-area resonant cavity enhanced p-i-n photodiodes for multimode fiber communications

2001 ◽  
Vol 13 (12) ◽  
pp. 1349-1351 ◽  
Author(s):  
M. Gokkavas ◽  
O. Dosunmu ◽  
M.S. Unlu ◽  
G. Ulu ◽  
R.P. Mirin ◽  
...  
Keyword(s):  
High Speed ◽  
High Efficiency ◽  
Resonant Cavity ◽  
Multimode Fiber ◽  
Large Area ◽  
Fiber Communications

A precision method for laser focusing on laser beam induced current experiments

2002 ◽  
Vol 73 (11) ◽  
pp. 3895-3900 ◽  
Author(s):  
J. A. Poce-Fatou ◽  
J. Martı́n ◽  
R. Alcántara ◽  
C. Fernández-Lorenzo
Keyword(s):  
Laser Beam ◽  
Induced Current ◽  
Precision Method ◽  
Laser Focusing

An Investigation onto Polydimethylsiloxane (PDMS) Printing Plate of Multiple Functional Solid Line by Flexographic

2013 ◽  
Vol 844 ◽  
pp. 158-161 ◽  
Author(s):  
M.I. Maksud ◽  
Mohd Sallehuddin Yusof ◽  
M. Mahadi Abdul Jamil
Keyword(s):  
Laser Ablation ◽  
Line Width ◽  
High Speed ◽  
Printed Electronics ◽  
Low Cost ◽  
Flexible Substrates ◽  
Large Area ◽  
Printing Plate ◽  
Roll To Roll ◽  
Printing Processes

Recently low cost production is vital to produce printed electronics by roll to roll manufacturing printing process like a flexographic. Flexographic has a high speed technique which commonly used for printing onto large area flexible substrates. However, the minimum feature sizes achieved with roll to roll printing processes, such as flexographic is in the range of fifty microns. The main contribution of this limitation is photopolymer flexographic plate unable to be produced finer micron range due to film that made by Laser Ablation Mask (LAMs) technology not sufficiently robust and consequently at micron ranges line will not be formed on the printing plate. Hence, polydimethylsiloxane (PDMS) is used instead of photopolymer. Printing trial had been conducted and multiple solid lines successfully printed for below fifty microns line width with no interference between two adjacent lines of the printed images.

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