title: Phosphine-free synthesis of p-type copper(I) selenide nanocrystals in hot coordinating solvents.
abstract: We report a phosphine-free synthesis of p-type copper(I) selenide nanocrystals by a colloidal approach in a mixture of oleylamine and 1-octadecene. The nanocrystals had a cuboctahedral shape and cubic berzelianite phase. Films of these nonstoichiometric copper-deficient Cu(2-x)Se nanocrystals were highly conductive and showed high absorption coefficient in the near-infrared region. These nanocrystals could be used as hole-injection layers in optoelectronic devices.
authors.affiliation: Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
authors.forename: Sasanka
authors.initials: S
authors.lastname: Deka
authors.forename: Alessandro
authors.initials: A
authors.lastname: Genovese
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhang
authors.forename: Karol
authors.initials: K
authors.lastname: Miszta
authors.forename: Giovanni
authors.initials: G
authors.lastname: Bertoni
authors.forename: Roman
authors.initials: R
authors.lastname: Krahne
authors.forename: Cinzia
authors.initials: C
authors.lastname: Giannini
authors.forename: Liberato
authors.initials: L
authors.lastname: Manna