Synthesis of beta-Phase NaYF4:Yb,Er Upconversion Nanocrystals and Nanorods by Hot-Injection of Small Particles of the alpha-Phase
| Autor(en): | Nordmann, Joerg Voss, Benjamin Komban, Rajesh Koempe, Karsten Raj, Athira Naduviledathu Rinkel, Thorben Duehnen, Simon Haase, Markus |
Stichwörter: | Chemistry; Chemistry, Physical; CORE; EMISSION; ER3+; Fluoride; HEXAGONAL-PHASE; Hot-Injection Synthesis; LUMINESCENCE; Nanoparticle Growth; NANOPARTICLES; NAYF4-YB,ER; SIZE CONTROL; Sodium Yttrium; TRANSITION; Upconversion Luminescence; YB3+ | Erscheinungsdatum: | 2015 | Herausgeber: | WALTER DE GRUYTER GMBH | Journal: | ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | Volumen: | 229 | Ausgabe: | 1-2, SI | Startseite: | 247 | Seitenende: | 262 | Zusammenfassung: | beta-NaYF4:Yb,Er upconversion nanocrystals are synthesized by a hot-injection method employing purified alpha-NaYF4:Yb,Er particles with a size of approximately 2-3 nm as single-source precursor. The method allows to prepare either spherical nanoparticles with different sizes or nanorods by simply controlling the addition rate of the solution of alpha-phase particles and performing the synthesis either in the absence or in the presence of seed particles. The luminescence properties of the different particles are compared also including core-shell particles. |
ISSN: | 09429352 | DOI: | 10.1515/zpch-2014-0616 |
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geprüft am 15.05.2024
