ZnO nanowire arrays for enhanced photocurrent in PbS quantum dot solar cells.

Jean, Joel; Chang, Sehoon; Brown, Patrick R; Cheng, Jayce J; Rekemeyer, Paul H; Bawendi, Moungi G; Gradečak, Silvija; Bulović, Vladimir · Adv Mater · 2013

basic_science · Level V

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Abstract

Vertical arrays of ZnO nanowires can decouple light absorption from carrier collection in PbS quantum dot solar cells and increase power conversion efficiencies by 35%. The resulting ordered bulk heterojunction devices achieve short-circuit current densities in excess of 20 mA cm(-2) and efficiencies of up to 4.9%.

Medical subject headings