ZnO Nanowire Arrays for Enhanced Photocurrent in PbS Quantum Dot Solar Cells

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...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2013-05, Vol.25 (20), p.2790-2796
Main Authors: Jean, Joel, Chang, Sehoon, Brown, Patrick R., Cheng, Jayce J., Rekemeyer, Paul H., Bawendi, Moungi G., Gradečak, Silvija, Bulović, Vladimir
Format: Article
Language:English
Subjects:
Arrays
Electric Power Supplies
Equipment Design
Equipment Failure Analysis
Lead - chemistry
Lead - radiation effects
lead sulfide
Materials Testing
Nanocomposites
Nanomaterials
Nanotubes - chemistry
Nanotubes - radiation effects
Nanowires
ordered bulk heterojunction
Photovoltaic cells
photovoltaics
Quantum Dots
Selenium Compounds - chemistry
Selenium Compounds - radiation effects
Solar cells
Solar Energy
Zinc oxide
Zinc Oxide - chemistry
ZnO nanowires
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Summary: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%.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201204192