back-surface field

back-surface field

[′bak ‚sər·fəs ‚fēld]
(electronics)
A p +layer that is added to a silicon solar cell to reduce electron-hole recombination at the cell's back surface and thereby increase the cell's efficiency.
References in periodicals archive ?
The c-Si cell structures that are enabled by new Honeywell materials include Selective Emitter, Rear-Side Passivation, Point Contact, and Boron Back-Surface Field (BSF) cells.
Suniva's ability to already achieve verified conversion efficiencies of over 19 percent on 156 mm size n-type production wafers using low-cost techniques, such as conventional screen printing of metal contacts and use of an ion implanted uniform emitter and back-surface field, is unrivaled; it is a testament to the company's commitment to solar cell research and development," said Dr.
Suniva believes it is the only manufacturer of high-efficiency silicon solar cells that has achieved certified conversion efficiencies of more than 19 percent on 156 mm n-type wafers using low-cost techniques, including conventional screen printing and ion implantation of both a boron homogeneous emitter and a phosphorus back-surface field.