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Time-resolved fluorescence and ultrafast energy transfer in a zinc (hydr)oxide–graphite oxide mesoporous composite

Time-resolved fluorescence and ultrafast energy transfer in a zinc (hydr)oxide–graphite oxide... Abstract. Ultrafast energy decay kinetics of a zinc (hydr)oxide–graphite oxide (GO) composite is studied via time-resolved fluorescence spectroscopy. The time-resolved emission is spectrally decomposed into emission regions originating from the zinc (hydr)oxide optical gap, surface, and defect states of the composite material. The radiative lifetime of deep red emission becomes an order of magnitude longer than that of GO alone while the radiative lifetime of the zinc optical gap is shortened in the composite. An energy transfer scheme from the zinc (hydr)oxide to GO is considered. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Photonics for Energy SPIE

Time-resolved fluorescence and ultrafast energy transfer in a zinc (hydr)oxide–graphite oxide mesoporous composite

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References (24)

Publisher
SPIE
Copyright
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Subject
Photovoltaic Materials, Devices, and Technologies; Paper
ISSN
1947-7988
eISSN
1947-7988
DOI
10.1117/1.JPE.5.053084
Publisher site
See Article on Publisher Site

Abstract

Abstract. Ultrafast energy decay kinetics of a zinc (hydr)oxide–graphite oxide (GO) composite is studied via time-resolved fluorescence spectroscopy. The time-resolved emission is spectrally decomposed into emission regions originating from the zinc (hydr)oxide optical gap, surface, and defect states of the composite material. The radiative lifetime of deep red emission becomes an order of magnitude longer than that of GO alone while the radiative lifetime of the zinc optical gap is shortened in the composite. An energy transfer scheme from the zinc (hydr)oxide to GO is considered.

Journal

Journal of Photonics for EnergySPIE

Published: Jan 1, 2015

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