title: Development of CuInSe2 nanocrystal and nanoring inks for low-cost solar cells.
abstract: The creation of a suitable inorganic colloidal nanocrystal ink for use in a scalable coating process is a key step in the development of low-cost solar cells. Here, we present a facile solution synthesis of chalcopyrite CuInSe 2 nanocrystals and demonstrate that inks based on these nanocrystals can be used to create simple solar cells, with our first cells exhibiting an efficiency of 3.2% under AM1.5 illumination. We also report the first solution synthesis of uniform hexagonal shaped single crystals CuInSe 2 nanorings by altering the synthesis parameter.
authors.affiliation: School of Chemical Engineering and the Energy Center, Purdue University, West Lafayette, Indiana 47906, USA.
authors.forename: Qijie
authors.initials: Q
authors.lastname: Guo
authors.forename: Suk Jun
authors.initials: SJ
authors.lastname: Kim
authors.forename: Mahaprasad
authors.initials: M
authors.lastname: Kar
authors.forename: William N
authors.initials: WN
authors.lastname: Shafarman
authors.forename: Robert W
authors.initials: RW
authors.lastname: Birkmire
authors.forename: Eric A
authors.initials: EA
authors.lastname: Stach
authors.forename: Rakesh
authors.initials: R
authors.lastname: Agrawal
authors.forename: Hugh W
authors.initials: HW
authors.lastname: Hillhouse