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gettering 2

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Laser enhanced gettering of silicon substrates

Daniel CHEN,Matthew EDWARDS,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Frontiers in Energy 2017, Volume 11, Issue 1, Pages 23-31 doi: 10.1007/s11708-016-0441-7

Abstract: to the use of lightly-doped, high efficiency emitters on multicrystalline silicon wafers is the poor getteringWith the photovoltaic industry highly reliant on heavily doped phosphorus diffusions as a source of getteringIn this paper, a novel laser based method for gettering is investigated for its impact on commerciallyDirect comparisons between laser enhanced gettering (LasEG) and lightly-doped emitter diffusion gettering, LasEG may enable improved gettering during the diffusion process.

Keywords： gettering multicystaline silicon impurities laser doping

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Impact of thermal processes on multi-crystalline silicon

Moonyong KIM,Phillip HAMER,Hongzhao LI,David PAYNE,Stuart WENHAM,Malcolm ABBOTT,Brett HALLAM

Frontiers in Energy 2017, Volume 11, Issue 1, Pages 32-41 doi: 10.1007/s11708-016-0427-5

Abstract: This was primarily due to a reduced effectiveness of gettering for the light emitter.This reduction in lifetime could be mitigated through the use of a dedicated gettering process appliedtemperatures also led to an increase in bulk recombination either due to a reduced effectiveness of gettering

Keywords： gettering grain boundaries hydrogen impurities oxidation passivation solar cell