Examples

ISE TOPCon

This example shows how to setup a detailed skin including a transport layer to enabled the detailed MIS model in Quokka3. The detailed MIS model resolves band-bending in the c-Si wafer and direct tunneling through an insulator.

The investigated cell is the former 25.7% record cell of Fraunhofer ISE: A. Richter et al., n-Type Si solar cells with passivating electron contact: Identifying sources for efficiency limitations by wafer thickness and resistivity variation, SOLMAT 2017

HJT optics

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. 

A paper on Appp including a detailed description of this example was submitted to SOLMAT.