title: Heat-induced transformation of CdSe-CdS-ZnS core-multishell quantum dots by Zn diffusion into inner layers.
abstract: In this work, we investigate the thermal evolution of CdSe-CdS-ZnS core-multishell quantum dots (QDs) in situ using transmission electron microscopy (TEM). Starting at a temperature of approximately 250 °C, Zn diffusion into inner layers takes place together with simultaneous evaporation of particularly Cd and S. As a result of this transformation, CdxZn1-xSe-CdyZn1-yS core-shell QDs are obtained.
authors.affiliation: Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands. a.o.yalcin@tudelft.nl.
authors.forename: Anil O
authors.initials: AO
authors.lastname: Yalcin
authors.forename: Bart
authors.initials: B
authors.lastname: Goris
authors.forename: Relinde J A
authors.initials: RJ
authors.lastname: van Dijk-Moes
authors.forename: Zhaochuan
authors.initials: Z
authors.lastname: Fan
authors.forename: Ahmet K
authors.initials: AK
authors.lastname: Erdamar
authors.forename: Frans D
authors.initials: FD
authors.lastname: Tichelaar
authors.forename: Thijs J H
authors.initials: TJ
authors.lastname: Vlugt
authors.forename: Gustaaf
authors.initials: G
authors.lastname: Van Tendeloo
authors.forename: Sara
authors.initials: S
authors.lastname: Bals
authors.forename: Daniël
authors.initials: D
authors.lastname: Vanmaekelbergh
authors.forename: Henny W
authors.initials: HW
authors.lastname: Zandbergen
authors.forename: Marijn A
authors.initials: MA
authors.lastname: van Huis
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D004058:Diffusion; D006358:Hot Temperature; D045663:Quantum Dots / Q000737:chemistry*; D018036:Selenium Compounds / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*; D017967:Zinc Compounds / Q000737:chemistry*
chemical_list: D019187:Cadmium Compounds; D018036:Selenium Compounds; D013440:Sulfides; D017967:Zinc Compounds; C034939:cadmium sulfide; C058667:cadmium selenide; D015032:Zinc; C031238:zinc sulfide