Wafer formats continue to evolve
Differences in wafer and module specifications, which have bedevilled solar developers in recent years, could now be narrowing.
Using p-type wafers in heterojunction solar cells, not a lost battle
An international research group has reconstructed the trajectory of p-type wafers in the heterojunction solar cell segment and has identified the lack of knowledge about boron-oxygen related light-induced degradation (BO-LID) as the main cause for the limited adoption of these wafers and the success of their n-type counterparts. According to the scientists, however, there is still big room for improvement for p-type technologies in heterojunction cells.
P-type TOPCon solar cell with 21.2% efficiency
Fraunhofer ISE scientists have identified the best metallization pastes to help reduce contact resistivity and contact recombination in p-type TOPCon solar cells. They applied a silicon nitride layer through plasma-enhanced chemical vapor deposition onto both sides of a cell.
