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

doi:10.1002/adma.201104832

Ordered nanopillar structured electrodes for depleted bulk heterojunction colloidal quantum dot solar cells

Adv Mater. 2012 May 2;24(17):2315-9. doi: 10.1002/adma.201104832. Epub 2012 Mar 30.

Authors

Illan J Kramer¹, 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

Affiliation

¹ Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada.

PMID: 22467240
DOI: 10.1002/adma.201104832

Abstract

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%.

Publication types

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

MeSH terms

Colloids / chemistry*
Electrodes
Lead / chemistry
Nanotechnology
Quantum Dots*
Solar Energy*
Sulfides / chemistry

Substances

Colloids
Sulfides
lead sulfide
Lead