Towards more accurate imaging of the local saturation current density in solar cells by using alternative PL evaluation methods

2015 ◽  
Author(s):  
Otwin Breitenstein ◽  
Jan Bauer ◽  
David Hinken ◽  
Karsten Bothe
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Evaluation Methods ◽  
Saturation Current ◽  
Saturation Current Density ◽  
Local Saturation ◽  
Accurate Imaging

scholarly journals Reducing Saturation-Current Density to Realize High-Efficiency Low-Bandgap Mixed Tin-Lead Halide Perovskite Solar Cells

2018 ◽  
Vol 9 (3) ◽  
pp. 1803135 ◽  
Author(s):  
Chongwen Li ◽  
Zhaoning Song ◽  
Dewei Zhao ◽  
Chuanxiao Xiao ◽  
Biwas Subedi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Saturation Current ◽  
Low Bandgap ◽  
Saturation Current Density ◽  
Halide Perovskite ◽  
Lead Halide

Atmospheric TIG Arc Diagnostics with a Low Disturbance Electrostatic Probe

2013 ◽  
Vol 652-654 ◽  
pp. 2239-2243
Author(s):  
Yuan Bo Li ◽  
Liang Zhu
Keyword(s):  
Current Density ◽  
Longitudinal Direction ◽  
Axial Direction ◽  
Half Width ◽  
Arc Plasma ◽  
Plasma Diagnostic ◽  
Saturation Current ◽  
Sweeping Motion ◽  
Saturation Current Density ◽  
Electrostatic Probe

The use of electrostatic probe is available and simple in atmospheric TIG arc plasma diagnostic. Usually electrostatic probe takes disturbance in arc plasma due to sweeping motion. A low disturbance electrostatic probe was developed. This probe consisted of aluminum wire and moved through arc plasma along probe’s longitudinal direction to avoid sweeping motion. And the signal collected by this probe required Abel inversion to convert into the value per 1 mm probe length. With the application of the low disturbance probe in biased condition, ion saturation current density in various sections along the axial direction of TIG arc was obtained. The result shows that half width and peak value of ion saturation current density increase with the enhance of arc current; the radius of current-carrying area can be estimated by the half width of ion saturation current density; along the axial direction of TIG arc, the radius of current-carrying area change to the minimum near cathode.

Reverse saturation current density imaging of highly doped regions in silicon: A photoluminescence approach

2012 ◽  
Vol 106 ◽  
pp. 76-79 ◽  
Author(s):  
Jens Müller ◽  
Karsten Bothe ◽  
Sandra Herlufsen ◽  
Helge Hannebauer ◽  
Rafel Ferré ◽  
...  
Keyword(s):  
Current Density ◽  
Saturation Current ◽  
Saturation Current Density ◽  
Current Density Imaging ◽  
Reverse Saturation Current
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