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

Adv Mater. 2013 May 28;25(20):2790-6. doi: 10.1002/adma.201204192. Epub 2013 Feb 26.

Authors

Joel Jean¹, Sehoon Chang, Patrick R Brown, Jayce J Cheng, Paul H Rekemeyer, Moungi G Bawendi, Silvija Gradečak, Vladimir Bulović

Affiliation

¹ Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139, USA.

PMID: 23440957
DOI: 10.1002/adma.201204192

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%.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Electric Power Supplies*
Equipment Design
Equipment Failure Analysis
Lead / chemistry*
Lead / radiation effects
Materials Testing
Nanotubes / chemistry*
Nanotubes / radiation effects*
Quantum Dots*
Selenium Compounds / chemistry*
Selenium Compounds / radiation effects
Solar Energy*
Zinc Oxide / chemistry*

Substances

Selenium Compounds
lead selenide
Lead
Zinc Oxide