Journal Article

PUBDB-2025-00163

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Epitaxial Core/Shell Nanocrystals of (Europium-Doped) Zirconia and Hafnia

Seno, C.Extern* ; Reichholf, N. ; Salutari, F. ; Spadaro, M. C. ; Ivanov, Y. P. ; Divitini, G. ; Gogos, A. ; Herrmann, I. K. ; Arbiol, J. ; Smet, P. F. ; De Roo, J. (Corresponding author)Extern*

2024
ACS Publications Washington, DC

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Please use a persistent id in citations: doi:10.1021/jacs.4c05037  doi:10.3204/PUBDB-2025-00163

Abstract: A careful design of the nanocrystal architecture can strongly enhance the nanocrystal function. So far, this strategy has faced a synthetic bottleneck in the case of refractory oxides. Here we demonstrate the epitaxial growth of hafnia shells onto zirconia cores and pure zirconia shells onto europium-doped zirconia cores. The core/shell structures are fully crystalline. Upon shelling, the optical properties of the europium dopant are dramatically improved (featuring a more uniform coordination and a longer photoluminescence lifetime), indicating the suppression of nonradiative pathways. These results launch the stable zirconium and hafnium oxide hosts as alternatives for the established NaYF4 systems.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20231114 EC (I-20231114-EC) (I-20231114-EC)

Experiment(s):

1. PETRA Beamline P21.1 (PETRA III)

Appears in the scientific report 2024

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Database coverage:
; ; ; BIOSIS Previews ; Biological Abstracts ; Chemical Reactions ; Clarivate Analytics Master Journal List ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 15 ; Index Chemicus ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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