화학공학소재연구정보센터
Solar Energy Materials and Solar Cells, Vol.48, No.1, 61-67, 1997
ESTI scan facility
This paper presents the multi-laser scan facility, set up at ESTI's laboratories for research and testing purposes of solar cells. The facility consists of two separate scanning systems, a high precision one for smaller devices and a large area one for any device up to module size, providing high spatial resolution maps of the short circuit current. Three inter-changeable lasers of different wavelengths have been chosen to reach different penetration depths in the device under test, A fast data acquisition system allows the on-line visualisation of the recorded light beam induced current (LBIC). Standard products such as mono-and polycrystalline cells, as well as newer technology PV-devices and modules of different sizes were chosen to show the capability of the facility.