title: Cadmium and Zinc Alloyed Cu-In-S Nanocrystals and Their Optical Properties.
abstract: Cadmium (Cd) and zinc (Zn) alloyed copper-indium-sulfide (Cu-In-S or CIS) nanocrystals (NCs) in several nanometers were prepared using thermal decomposition methods, and the effects of Cd and Zn on optical properties, including the tuning of NC photoluminescence (PL) wavelength and quantum yield (QY), were investigated. It was found that incorporation of Cd into CIS enhances the peak QY of NCs whereas zinc alloying diminishes the peak. In contrast with Zn alloying, Cd alloying does not result in a pronounced luminescence blue shift. The further PL decay study suggests that Cd alloying reduces surface or intrinsic defects whereas alloying with Zn increases the overall number of defects.
authors.affiliation: Department of Electrical and Biomedical Engineering, University of Nevada, Reno, NV, USA ; Biomedical Engineering Program, University of Nevada, Reno, NV, USA ; Department of Microbiology, University of Nevada, Reno, NV, USA.
authors.forename: Liming
authors.initials: L
authors.lastname: Huang
authors.affiliation: Department of Electrical and Biomedical Engineering, University of Nevada, Reno, NV, USA ; Biomedical Engineering Program, University of Nevada, Reno, NV, USA.
authors.forename: Xiaoshan
authors.initials: X
authors.lastname: Zhu
authors.affiliation: Department of Electrical and Biomedical Engineering, University of Nevada, Reno, NV, USA ; Biomedical Engineering Program, University of Nevada, Reno, NV, USA ; Department of Microbiology, University of Nevada, Reno, NV, USA.
authors.forename: Nelson G
authors.initials: NG
authors.lastname: Publicover
authors.affiliation: Biomedical Engineering Program, University of Nevada, Reno, NV, USA ; Department of Microbiology, University of Nevada, Reno, NV, USA.
authors.forename: Kenneth W
authors.initials: KW
authors.lastname: Hunter
authors.affiliation: Department of Chemical and Materials Engineering, University of Nevada, Reno, NV, USA.
authors.forename: Mojtaba
authors.initials: M
authors.lastname: Ahmadiantehrani
authors.affiliation: Department of Chemistry, University of Nevada, Reno, NV, USA.
authors.forename: Ana
authors.initials: A
authors.lastname: de Bettencourt-Dias
authors.affiliation: Department of Chemistry, University of Nevada, Reno, NV, USA.
authors.forename: Thomas W
authors.initials: TW
authors.lastname: Bell