Examples

This examples shows how to calibrate Quokka3's optical model, the extended Basore model, to measured reflection and EQE data of a HJT cell. In particular this results in the determination of the significant NIR parastic absorption loss in the a-Si and TCO layers using the Appp concept.

The investigated cell is a Fraunhofer ISE HJT cell. 

See following paper for details:

Modeling parasitic absorption in silicon solar cells with a near-surface absorption parameter
A Fell, J Greulich, F Feldmann, C Messmer, J Schön, M Bivour, Martin C Schubert, Stefan W Glunz
Solar Energy Materials and Solar Cells 236, 111534