Haschke, J.; Mingirulli, N.; Rech, B.: Progress in Point Contacted Rear Silicon Heterojunction Solar Cells. Energy Procedia 27 (2012), p. 116-121
10.1016/j.egypro.2012.07.038
Open Access Version
Abstract:
We present the latest results of our back contact back silicon heterojunction (BCB-SHJ) solar cells with punctiform absorber contacts. We discuss the technological challenges and present a basic cell structure reaching an efficiency of (17.1 ± 0.5)% on our BCB-SHJ solar cells. The main loss mechanisms affecting the fill factor and the Voc are identified and are found to be avoided by minor process modifications.