TY - GEN
T1 - Passivation of highly boron doped silicon surfaces by sputtered AlO x and PECVD SiN, a comparison
AU - Li, T. T.A.
AU - Cuevas, A.
AU - Tan, J.
AU - Samundsett, C.
AU - Saynova, D.
AU - Geerligs, B.
PY - 2010
Y1 - 2010
N2 - We show that boron-diffused emitters can be passivated with AlOx deposited using RF sputtering of an Al target. The surface passivation achieved so far is inferior to that obtained using an optimised PECDV SiN process that includes a chemically grown SiO2 interfacial layer. Nevertheless, the levels of passivation obtained, expressed by emitter recombination current densities of JoE=228-349 fA/cm2 for sheet resistances of 88-210 Ω/□, are already consistent with solar cell with efficiencies in the 20% range.
AB - We show that boron-diffused emitters can be passivated with AlOx deposited using RF sputtering of an Al target. The surface passivation achieved so far is inferior to that obtained using an optimised PECDV SiN process that includes a chemically grown SiO2 interfacial layer. Nevertheless, the levels of passivation obtained, expressed by emitter recombination current densities of JoE=228-349 fA/cm2 for sheet resistances of 88-210 Ω/□, are already consistent with solar cell with efficiencies in the 20% range.
UR - http://www.scopus.com/inward/record.url?scp=79951760212&partnerID=8YFLogxK
U2 - 10.1109/COMMAD.2010.5699694
DO - 10.1109/COMMAD.2010.5699694
M3 - Conference contribution
SN - 9781424473328
T3 - Conference on Optoelectronic and Microelectronic Materials and Devices, Proceedings, COMMAD
SP - 125
EP - 126
BT - 2010 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2010 Proceedings
T2 - 2010 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2010
Y2 - 12 December 2010 through 15 December 2010
ER -