Al3+ Impacting on Eu3+ - Host Energy Transfer and Calculation of Eu3+ 5D0 Quantum Efficiency

DOI

10.2991/meic-14.2014.5How to use a DOI?

Keywords

co-doping;energy transfer; J-O parameters; quantum efficiency; red LED

Abstract

With 2 mol% Al3+ ions and 8 mol% Eu3+ ions co-doping,nano-size[K0.8Y0.63Eu3+0.08Al0.02][Mo0.2W0.8O4] phosphor was synthesized by the sol-gel method. Through XRD, DTA-TG, SEM and photoluminescent analysis, its morphology, crystal structure and luminescent property were discussed and it is found that one type of excellent phosohr can be obtained, and its luminescent efficiency and particles sizes can be improved to some extent by adjusting suitable technological conditions. According to the photolumiescent characteristics of the phosphor, its emission mechanism was mentioned. The partial J-O parameters and quantum efficiency of Eu3+ 5D0 energy level were calculated under 395 nm excitation. The phosphor can combine with 390–410 nm InGaN chip in order to get different simple color light and white light. Under 20 mA forward-bias current, bright red light is observed by naked eyes so the phosphor will have excellent application outline from the LED illumination and display in the further.

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Fa-bin Cao
AU  - Lu-hong Wei
AU  - Zhao-jin Wu
PY  - 2014/11
DA  - 2014/11
TI  - Al3+ Impacting on Eu3+ - Host Energy Transfer and Calculation of Eu3+ 5D0 Quantum Efficiency
BT  - Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 19
EP  - 22
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-14.2014.5
DO  - 10.2991/meic-14.2014.5
ID  - Cao2014/11
ER  -