UV-Vis DRS and photoluminescence (PL) spectroscopy, combined with excitation selective Raman spectroscopy, allow us to understand the main optical and vibrational properties of a metal-organic MOF-5 framework. A O2-Zn2+--> O-Zn+ ligand to metal charge transfer transition (LMCT) at 350 nm, testifies that the Zn4O13 cluster behaves as a ZnO quantum dot (QD). The organic part acts as a photon antenna able to efficiently transfer the energy to the inorganic ZnO-like QD part, where an intense emission at 525 nm occurs.

Electronic and vibrational properties of a Mof-5 metal-organic framework: zno quantum dot behaviour

BORDIGA, Silvia;LAMBERTI, Carlo;RICCHIARDI, Gabriele;REGLI, LAURA;BONINO, Francesca Carla;DAMIN, Alessandro Ali;ZECCHINA, Adriano
2004-01-01

Abstract

UV-Vis DRS and photoluminescence (PL) spectroscopy, combined with excitation selective Raman spectroscopy, allow us to understand the main optical and vibrational properties of a metal-organic MOF-5 framework. A O2-Zn2+--> O-Zn+ ligand to metal charge transfer transition (LMCT) at 350 nm, testifies that the Zn4O13 cluster behaves as a ZnO quantum dot (QD). The organic part acts as a photon antenna able to efficiently transfer the energy to the inorganic ZnO-like QD part, where an intense emission at 525 nm occurs.
2004
20
2300
2301
http://www.rsc.org/publishing/journals/CC/article.asp?doi=b407246d
MOF; zinc oxide; quantum dot; photoluminescence; UV-Vis; Raman
S. BORDIGA; C. LAMBERTI; G. RICCHIARDI; L. REGLI; F. BONINO; A. DAMIN; K. P. LILLERUD; M. BJORGEN; A. ZECCHINA
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1647
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