Nanoplus GmbH - CIS carrier lifetime measurement system

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CIS-lifetime tester

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nanoplus GmbH
Oberer Kirschberg 4
D-97218 Gerbrunn, Germany

info@nanoplus.com
phone: +49-931 90 827-0
fax: +49-931 90 827-19

CIS carrier lifetime measurement system

The Copper Indium Selenide (CIS) solar cell - measuring system permits an automated characterization of the lifetime of minority charge carriers in CIS solar cells. The system can be installed within the production line.

As confirmed by studies in research and production labs, the CIS carrier lifetime correlates to a very good degree quantitatively with the efficiency of solar cells. Therefore a simple optical measurement on unprocessed layers provides a precise quality control for the CIS production or permits a fast optimization of the efficiency of the cells.

CIS Lifetime Tester

light source for excitation	semiconductor laser diode with temperature stabilization and pulse controller pulse width < 500 ps repetition rate up to 80 MHz density of excitation: 0 – 2 AM0
detector	LN2 cooled APD time constant < 1 ns band pass /edge filter
time to amplitude conversion system	time resolution 30 ps incl. trigger system
control system	PC software for automated measurement of decay characteristics and lifetime calculation on lab-view base

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