The new solar cell, developed by the Shanghai-based company using advanced light trapping and surface passivation technologies, achieved a 1% increase in conversion efficiency on a design announced some nine months ago.
"Consecutive record-breaking results by our multi-Si solar cells are a great achievement for our R&D team, but, we have only just begun," says JA Solar chief scientist Wei Shan.
"The confidence we had in surpassing 20% efficiency this year extends now to our expectation to realise even more efficiency gains in the quarters ahead.
"With
