Luminance Conversion Property of Er and Yb Doped KZnF3 Nanocrystal Synthesized by Hydrothermal Method

المؤلفون المشاركون

Lai, Weidong
Li, Xinzheng
Liu, Huiqing
Han, Lu
Li, Xiaowei
Cheng, Xueliang
Chen, Yingjuan

المصدر

International Journal of Photoenergy

العدد

المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-8، 8ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2015-01-12

دولة النشر

مصر

عدد الصفحات

8

التخصصات الرئيسية

الكيمياء

الملخص EN

In order to make full use of exposure energy, one feasible way is to modify the luminance of crystal by rare earth doping technique.

KZnF3:Er3+ and KZnF3:Er3+/Yb3+ nanocrystals of uniform cuboid perovskite type morphology, with average diameter of 130 nm, has been synthesized by hydrothermal method.

When Yb3+ ions were codoped with Er3+, absorption peak at 970 nm has been heightened and widened, and the photon absorption cross section increased.

The common xenon lamp exposure cannot initiate obvious nonlinear phenomenon of the doped Er3+ and Yb3+, and exposing at 245 nm only excites the fluorescence around 395 nm.

Contrarily, under high power IR exposure at 980 nm, obvious upconversion photoluminescence (PL) has been observed due to the two-photon process.

The PL mechanism of the doped Er3+ ion in KZnF3:Er3+/Yb3+ nanocrystals is confirmed.

Furthermore, Yb3+ codoped as sensitizer has modified the PL intensity of Er3+ from green light range to red range, and the primary channel is changed from 4S3/2(Er3+) → 4I15/2(Er3+) of only Er3+ doped KZnF3 nanocrystal to 4F9/2(Er3+) → 4I15/2(Er3+) of Er3+/Yb3+ codoped sample.

With exposure energy increasing, such primary transition channel after two-photon excitation is unchanged.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Lai, Weidong& Li, Xinzheng& Han, Lu& Liu, Huiqing& Chen, Yingjuan& Cheng, Xueliang…[et al.]. 2015. Luminance Conversion Property of Er and Yb Doped KZnF3 Nanocrystal Synthesized by Hydrothermal Method. International Journal of Photoenergy،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1066462

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Lai, Weidong…[et al.]. Luminance Conversion Property of Er and Yb Doped KZnF3 Nanocrystal Synthesized by Hydrothermal Method. International Journal of Photoenergy No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1066462

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Lai, Weidong& Li, Xinzheng& Han, Lu& Liu, Huiqing& Chen, Yingjuan& Cheng, Xueliang…[et al.]. Luminance Conversion Property of Er and Yb Doped KZnF3 Nanocrystal Synthesized by Hydrothermal Method. International Journal of Photoenergy. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1066462

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1066462