TLM-SCAN+ Contact resistivity and sheet resistance
No.TLM-SCAN+
TLM-SCAN+ Contact resistivity and sheet resistance The contact resistance of the front metallization is an important contribution to the total series resistance of screen-printed solar cells. The transfer length method with a suitable test structure is
The contact resistance of the front metallization is an important contribution to the total series resistance of screen-printed solar cells. The transfer length method with a suitable test structure is the best method to separate the contact resistance from other series resistance effects. However, the contact resistance may vary considerably over the solar cell so a method to measure it with spatial resolution on the finished solar cell is necessary. The TLM-SCAN creates mappings of the contact resistivity of a solar cell that is cut into stripes with a laser or a dicing saw.
The mapping on the right demonstrates the resolution and repeatabilty as it shows the same stripe measured 14 times.
Compatible with the size of the battery after cutting
Sample strip cutting width range
230mm (backward compatible)
5mm-10mm
Probe model (modified according to customer needs)/fine grid line spacing
Function
A total of 5 probes: 0.7/0.75/0.8/0.85/0.9mm probe, 1 each;
Motorized positioning in x, y and z Vacuum-mounted sample stage (pump not included)
Can test the contact resistance of the prepared battery strip, Rsheet,
The contact resistance of single or multiple prepared samples can be tested continuously
Repeatability (test original reference block - included in the goods)
TBC, BC batteries
Automatically create mapping and line resistance functions
5%
Currently, we do not have the ability to test TBC and BC batteries. Customers are required to provide samples and the original factory will test the samples to determine whether they match.
Function to identify fine gate pitch
Computer configuration
Available (including the second robotic arm)
Subject to the random computer configuration from Germany, cannot be customized
Device size
weight
45 cm x 55 cm x 28 cm (TLM-SCAN+)
28kg (excluding the weight of computer and monitor)
Universal supply voltage
Relative humidity
220V (±6%) 50Hz
< 80%, no condensation
Warranty
One-year warranty
Shanghai Sales + Technical Support + After-sales Service Center Rayscience Optoelectronic Innovation Co., Ltd address: 4th Floor, Building 122, Lane 2338, No. 1 Duhui Road, Minhang District, Shanghai Telephone: 021-34635258 021-34635259 fax: 021-34635260 E-mail: saleschina@rayscience.com
