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

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

Advanced materials (Deerfield Beach, Fla.) (2012-04-03)
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
PMID22467240
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%.