Giant enhancement of band edge emission based on ZnO/TiO<sub>2</sub> nanocomposites

doi:10.1364/OE.15.013832

Giant enhancement of band edge emission based on ZnO/TiO₂ nanocomposites

H. Y. Lin, Y. Y. Chou, C. L. Cheng, and Y. F. Chen »View Author Affiliations

Optics Express, Vol. 15, Issue 21, pp. 13832-13837 (2007)
http://dx.doi.org/10.1364/OE.15.013832

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Abstract
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Abstract

Enhancement of band edge emission of ZnO nanorods up to a factor of 120 times has been observed in the composite consisting of ZnO nanorods and TiO₂ nanoparticles, while the defect emission of ZnO nanorods is quenched to noise level. Through a detailed investigation, it is found that the large enhancement mainly arises from fluorescence resonance energy transfer between the band edge transition of ZnO nanorods and TiO₂ nanoparticles. Our finding opens up new possibilities for the creation of highly efficient solid state emitters.

OCIS Codes
(250.5230) Optoelectronics : Photoluminescence
(260.5740) Physical optics : Resonance
(240.6675) Optics at surfaces : Surface photoemission and photoelectron spectroscopy

ToC Category:
Optics at Surfaces

History
Original Manuscript: August 21, 2007
Revised Manuscript: September 6, 2007
Manuscript Accepted: September 10, 2007
Published: October 5, 2007

Citation
H. Y. Lin, Y. Y. Chou, C. L. Cheng, and Y. F. Chen, "Giant enhancement of band edge emission based on ZnO/TiO₂ nanocomposites," Opt. Express 15, 13832-13837 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-21-13832

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References

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An, J.
Aydil, E. S.
Baxter, J. B.
Berney, C.
Chen, H. P.
Chen, J.
Chen, S. Y.
Chen, T.
Chen, Y. F.
Cheng, C. L.
Choi, G. J.
Chou, Y. Y.
Danuser, G.
Duan, L.
Fang, Z.
Fu, Z.
Fujiki, Y.
Grätzel, M.
Hng, H. H.
Hock, J.
Hsu, N. E.
Huang, L. L.
Hung, W. K.
Izumi, F.
Kwon, Y. T.
Lai, C. W.
Lau, S. P.
Lee, H. W.
Lee, W. I.
Li, C.
Lian, Y.
Liao, H. C.
Lin, B.
Lin, C. C.
Lin, H. Y.
Lin, J. M.
Mori, T.
Nakajima, H.
Ohsaka, T.
Ong, H. C.
Shi, J.
Song, K. Y.
Stott, J.
Tay, B. K.
Wakefield, G.
Wang, X.
Wang, Y. G.
Watanabe, M.
Wu, F.
Xu, J.
Yu, S. F.
Zhang, W.
Zhang, X. H.
Zhang, Y.
Zhang, Z.
Zhong, S.

Appl. Phys. Lett.

J. B. Baxter, F. Wu, and E. S. Aydil, ‘‘Growth mechanism and characterization of zinc oxide hexagonal columns,’’ Appl. Phys. Lett. 83, 3797-3799 (2003). [CrossRef]
C. C. Lin, H. P. Chen, H. C. Liao, and S. Y. Chen, ‘‘Enhanced luminescent and electrical properties of hydrogen-plasma ZnO nanorods grown on wafer-scale flexible substrates,’’ Appl. Phys. Lett. 86, 183103 (2005). [CrossRef]
L. Duan, W. Zhang, S. Zhong, and Z. Fu, ‘‘Enhancement of ultraviolet emissions from ZnO films by Ag doping,’’ Appl. Phys. Lett. 88, 232110 (2006). [CrossRef]
C. W. Lai, J. An, and H. C. Ong, ‘‘Surface-plasmon-mediated emission from metal-capped ZnO thin films,’’ Appl. Phys. Lett. 86, 251105 (2005). [CrossRef]

Biophys. J.

C. Berney and G. Danuser, ‘‘FRET or No FRET: A quantitative comparison,’’ Biophys. J. 84, 3992-4010 (2003). [CrossRef] [PubMed]

Bull. Korean Chem. Soc.

K. Y. Song, Y. T. Kwon, G. J. Choi, and W. I. Lee, ‘‘Photocatalytic activity of Cu/TiO2 with oxidation state of surface-loaded copper,’’ Bull. Korean Chem. Soc. 20, 957-960 (1999).

J. Appl. Phys.

N. E. Hsu, W. K. Hung, and Y. F. Chen, ‘‘Origin of defect emission identified by polarized luminescence from aligned ZnO nanorods,’’ J. Appl. Phys. 96, 4671-4673 (2004). [CrossRef]
H. Nakajima, T. Mori, and M. Watanabe, ‘‘Influence of platinum loading on photoluminescence of TiO2 powder,’’ J. Appl. Phys. 96, 925-927 (2004). [CrossRef]

J. Cryst. Growth

Y. G. Wang, S. P. Lau, X. H. Zhang, H. H. Hng, H. W. Lee, S. F. Yu, and B. K. Tay, ‘‘Enhancement of near-band-edge photoluminescence from ZnO films by face-to-face annealing,’’ J. Cryst. Growth 259, 335-342 (2003). [CrossRef]

J. Phys. Chem.

Y. Zhang, Z. Zhang, B. Lin, Z. Fu, and J. Xu, ‘‘Effect of Ag doping on the photoluminescence of ZnO films grown on Si substrate,’’ J. Phys. Chem. 109, 19200-19203 (2005). [CrossRef]

J. Phys. Chem. C

J. Shi, J. Chen, Z. Fang, T. Chen, Y. Lian, X. Wang, and C. Li, ‘‘Photoluminescence characteristics of TiO2 and their relationship to the photoassisted reaction of water/methanol mixture,’’ J. Phys. Chem. C 111, 693-699 (2007). [CrossRef]

J. Raman

T. Ohsaka, F. Izumi, and Y. Fujiki, ‘‘Raman spectrum of anatase, TiO2,’’ J. Raman Spec. 7, 321-324 (1978). [CrossRef]

Mater. Today

L. S. -Mende and J. L. MacManus-Driscoll, ‘‘ZnO-nanostructures, defects, and devices," Mater. Today 10, 40-48 (2007). [CrossRef]

Nanotechnology

J. M. Lin, H. Y. Lin, C. L. Cheng, and Y. F. Chen, ‘‘Giant enhancement of bandgap emission of ZnO nanorods by platinum nanoparticles,’’ Nanotechnology 17, 4391-4394 (2006).Q1 [CrossRef]

Nature

M. Grätzel, ‘‘Photoelectrochemical cells,’’ Nature 414, 338-344 (2001). [CrossRef] [PubMed]

Opt. Exp.

H. Y. Lin, C. L. Cheng, Y. Y. Chou, L. L. Huang, and Y. F. Chen, ‘‘Enhancement of band gap emission stimulated by defect loss,’’ Opt. Exp. 14, 2372-2379 (2006).Q2 [CrossRef]

Opt. Lett.

J. M. Lin, C. L. Cheng, H. Y. Lin, and Y. F. Chen, ‘‘Giant enhancement of band edge emission in ZnO and SnO nanocomposites,’’ Opt. Lett. 31, 3173-3175 (2006). [CrossRef] [PubMed]

SÖFW J.

G. Wakefield, J. Stott, and J. Hock, ‘‘Sunscreens and Cosmetics Containing Manganese Doped Titanium Oxide Nanoparticles,’’ SÖFW J. 131, 46-51 (2005).

2007, , Mater. Today
2007, Shi, J. Phys. Chem. C
2006, Lin, Opt. Exp.
2006, Lin, Opt. Lett.
2006, Lin, Nanotechnology
2006, Duan, Appl. Phys. Lett.
2005, Lai, Appl. Phys. Lett.
2005, Zhang, J. Phys. Chem.
2005, Lin, Appl. Phys. Lett.
2005, Wakefield, SÖFW J.
2004, Nakajima, J. Appl. Phys.
2004, Hsu, J. Appl. Phys.
2003, Wang, J. Cryst. Growth
2003, Berney, Biophys. J.
2003, Baxter, Appl. Phys. Lett.
2001, Grätzel, Nature
1999, Song, Bull. Korean Chem. Soc.
1978, Ohsaka, J. Raman

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