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dc.contributor.authorNiemela, J. P.
dc.contributor.authorMacco, B.
dc.contributor.authorBarraud, L.
dc.contributor.authorDescoeudres, A.
dc.contributor.authorBadel, N.
dc.contributor.authorDespeisse, M.
dc.contributor.authoret al.
dc.date.accessioned2021-12-09T14:07:02Z
dc.date.available2021-12-09T14:07:02Z
dc.date.issued2019
dc.identifier.citationSolar Energy Materials and Solar Cells, vol. 200, p. 5, Sep 2019.
dc.identifier.urihttps://yoda.csem.ch/handle/20.500.12839/393
dc.description.abstractHere high-efficiency (above 21%) large-area silicon heterojunction solar cells with atomic layer deposited ZnO:Al as front- or back-side transparent conducting oxide are demonstrated. Photoconductance decay measurements indicate that the excellent chemical passivation provided by the a-Si:H(i,p) and a-Si:H(i,n) stacks is preserved upon deposition of ZnO:Al, and that field-effect passivation losses for the a-Si:H(i,p)/ZnO:Al contact can be mitigated by lowering the Al doping level. Use of low Al-doping is enabled by the rear-emitter configuration which, in addition to facilitating the a-Si:H(i,p)/ZnO:Al contact engineering, enables a higher photo-current due to the decrease in free-carrier absorption in ZnO:Al. The results encourage the use of In-free transparent conducting oxides in silicon heterojunction solar cells, as the replacement of In2O3:Sn without efficiency loss is demonstrated.
dc.subjectTransparent conducting oxide, Silicon heterojunction solar cell, Rear, emitter solar cell, Zinc oxide, Atomic layer deposition, optoelectrical properties, zinc-oxide, efficiency, restrictions, optimization, films, Energy and Fuels, Materials Science, Physics
dc.titleRear-emitter silicon heterojunction solar cells with atomic layer deposited ZnO:Al serving as an alternative transparent conducting oxide to In2O3:Sn
dc.typeJournal Article
dc.type.csemdivisionsDiv-V
dc.type.csemresearchareasPV & Solar Buildings
dc.identifier.doihttps://doi.org/10.1016/j.solmat.2019.109953


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