Angle-sensitive and fast photovoltage of silver nanocluster embeded ZnO thin films induced by 1.064-μm pulsed laser

doi:10.1088/1674-1056/19/8/087204

Abstract Silver nanocluster embedded ZnO composite thin film was observed to have an angle-sensitive and fast photovoltaic effect in the angle range from –90$^\circ$ to 90$^\circ$, its peak value and the polarity varied regularly with the angle of incidence of the 1.064-μm pulsed Nd:YAG laser radiation onto the ZnO surface. Meanwhile, for each photovoltaic signal, its rising time reached ～2 ns with an open-circuit photovoltage of ～2 ns full width at half-maximum. This angle-sensitive fast photovoltaic effect is expected to put this composite film a candidate for angle-sensitive and fast photodetector.

Keywords: angle-sensitive detector ZnO thin film silver nanocluster fast photovoltage

Received: 06 October 2009
Revised: 03 March 2010
Accepted manuscript online:

PACS:	72.40.+w	(Photoconduction and photovoltaic effects)
	61.46.Bc	(Structure of clusters (e.g., metcars; not fragments of crystals; free or loosely aggregated or loosely attached to a substrate))
	73.50.Pz	(Photoconduction and photovoltaic effects)
	73.61.Ga	(II-VI semiconductors)
	81.15.Fg	(Pulsed laser ablation deposition)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 60877038, 50672132, 60778034 and 10804077), Program for New Century Excellent Talents in University, Research Fund for the Doctoral Program of the Higher Education of China (Grant No. 200804250006), Key Project of the Chinese Ministry of Education (Grant No. 107020), and the Natural Science Foundation of Beijing (Grant No. 4082026).

Cite this article:

Zhao Song-Qing(赵嵩卿), Yang Li-Min(杨立敏), Liu Wen-Wei(刘闻炜), Zhao Kun(赵昆), Zhou Yue-Liang(周岳亮), and Zhou Qing-Li(周庆莉) Angle-sensitive and fast photovoltage of silver nanocluster embeded ZnO thin films induced by 1.064-μm pulsed laser 2010 Chin. Phys. B 19 087204

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Angle-sensitive and fast photovoltage of silver nanocluster embeded ZnO thin films induced by 1.064-μm pulsed laser

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