Ordered Nanopillar Structured Electrodes for Depleted Bulk Heterojunction Colloidal Quantum Dot Solar Cells

Illan J. Kramer, David Zhitomirsky, John D. Bass, Philip M. Rice, Teya Topuria, Leslie Krupp, Susanna M. Thon, Alexander H. Ip, Ratan Debnath, Ho-Cheol Kim, Edward H. Sargent

Research output: Contribution to journalArticlepeer-review

113 Scopus citations


A bulk heterojunction of ordered titania nanopillars and PbS colloidal quantum dots is developed. By using a pre-patterned template, an ordered titania nanopillar matrix with nearest neighbours 275 nm apart and height of 300 nm is fabricated and subsequently filled in with PbS colloidal quantum dots to form an ordered depleted bulk heterojunction exhibiting power conversion efficiency of 5.6%. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)2315-2319
Number of pages5
JournalAdvanced Materials
Issue number17
StatePublished - Mar 30 2012
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUS-11-009-21
Acknowledgements: This publication is based on work in part supported by Award No. KUS-11-009-21, made by King Abdullah University of Science and Technology (KAUST), the Ontario Research Fund Research in Excellence Program and the Natural Sciences and Engineering Research Council (NSERC) of Canada. We thank Angstrom Engineering and Innovative Technologies for useful discussions regarding material deposition methods and control of glovebox environment, respectively. I.J.K., D.Z., A. H. I. and R. D. acknowledge the financial support through the Ontario Graduate Scholarship, the NSERC CGS D Scholarship, the Queen Elizabeth II Graduate Scholarship in Science and Technology and the MITACS Elevate Strategic Fellowship, respectively. H-C. K. thanks Eugene Delenia (at IBM Almaden Research Center) for TEM sample preparation. He also thanks Robert Miller (IBM), Campbell Scott (IBM) and Fahhad Alharbi (King Abdulaziz City of Science and Technology) and useful discussions. The authors would also like to acknowledge the technical assistance and scientific guidance of E. Palmiano, R. Wolowiec and D. Kopilovic.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.


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