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

Jeff A. Secor; Veeshan Narinesingh; Teresa J. Bandosz; Robert R. Alfano; Mykola Seredych; Dimitrios A. Giannakoudakis

doi:10.1117/1.JPE.5.053084

10 December 2015 Time-resolved fluorescence and ultrafast energy transfer in a zinc (hydr)oxide–graphite oxide mesoporous composite

Jeff A. Secor, Veeshan Narinesingh, Teresa J. Bandosz, Robert R. Alfano, Mykola Seredych, Dimitrios A. Giannakoudakis

Author Affiliations +

Journal of Photonics for Energy, Vol. 5, Issue 1, 053084 (December 2015). https://doi.org/10.1117/1.JPE.5.053084

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.

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Jeff A. Secor, Veeshan Narinesingh, Teresa J. Bandosz, Robert R. Alfano, Mykola Seredych, and Dimitrios A. Giannakoudakis "Time-resolved fluorescence and ultrafast energy transfer in a zinc (hydr)oxide–graphite oxide mesoporous composite," Journal of Photonics for Energy 5(1), 053084 (10 December 2015). https://doi.org/10.1117/1.JPE.5.053084

Published: 10 December 2015

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