Passivation of highly boron doped silicon surfaces by sputtered AlO x and PECVD SiN, a comparison

T. T.A. Li, A. Cuevas, J. Tan, C. Samundsett, D. Saynova, B. Geerligs

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    1 Citation (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publication2010 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2010 Proceedings
    Pages125-126
    Number of pages2
    DOIs
    Publication statusPublished - 2010
    Event2010 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2010 - Canberra, ACT, Australia
    Duration: 12 Dec 201015 Dec 2010

    Publication series

    NameConference on Optoelectronic and Microelectronic Materials and Devices, Proceedings, COMMAD

    Conference

    Conference2010 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2010
    Country/TerritoryAustralia
    CityCanberra, ACT
    Period12/12/1015/12/10

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