Main > Chinese Optics Letters >  Volume 13 >  Issue 5 >  Page 051603 > Article
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  • Received: Dec. 27, 2014

    Accepted: Mar. 16, 2015

    Posted: Jan. 23, 2019

    Published Online: Sep. 20, 2018

    The Author Email: Yinzhen Wang (agwyz@aliyun.com)

    DOI: 10.3788/COL201513.051603

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    Yinzhen Wang, Pingping Duan, Ning Li, Juqing Di, Liaolin Zhang, Junyong Deng, Xuwei Sun, Benli Chu, Qinyu He. Structure and up-conversion luminescence of Pr3+/Yb3+ co-doped CaNb2O6 thin films by pulsed laser deposition[J]. Chinese Optics Letters, 2015, 13(5): 051603

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XRD spectra of as-deposited and annealed films CaNb2O6:Pr3+/Yb3+ films.

Fig. 1. XRD spectra of as-deposited and annealed films CaNb2O6:Pr3+/Yb3+ films.

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AFM image of as-deposited and annealed CaNb2O6:Pr3+/Yb3+ thin films; (a) as-deposited; (b) 700 °C; (c) 800 °C; (d) 900 °C.

Fig. 2. AFM image of as-deposited and annealed CaNb2O6:Pr3+/Yb3+ thin films; (a) as-deposited; (b) 700 °C; (c) 800 °C; (d) 900 °C.

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Raman spectra of as-deposited and annealed CaNb2O6:Pr3+/Yb3+ thin films.

Fig. 3. Raman spectra of as-deposited and annealed CaNb2O6:Pr3+/Yb3+ thin films.

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XPS spectra of CaNb2O6:Pr3+/Yb3+ films.

Fig. 4. XPS spectra of CaNb2O6:Pr3+/Yb3+ films.

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UC emission spectra of as-deposited and annealed CaNb2O6:Pr3+/Yb3+ thin films under 980 nm LD excitation.

Fig. 5. UC emission spectra of as-deposited and annealed CaNb2O6:Pr3+/Yb3+ thin films under 980 nm LD excitation.

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Variation of UC emission intensities with pump power.

Fig. 6. Variation of UC emission intensities with pump power.

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Energy level diagram and a possible mechanism in CaNb2O6:Pr3+/Yb3+ thin films under 980 nm LD excitation.

Fig. 7. Energy level diagram and a possible mechanism in CaNb2O6:Pr3+/Yb3+ thin films under 980 nm LD excitation.

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