Abstract

An intense bluish-green phosphor, CaLaGa3S6O:Ce3+,Tb3+, is developed. The photoluminescence excitation and emission spectra, the lifetime, and the concentration effect are investigated. The results show that an efficient nonradiative energy transfer from Ce3+ to Tb3+ occurs and its efficiency is about 11%. Although the efficiency is not high enough, these results demonstrate that a Tb3+ ion with low 4f4f absorption efficiency in the near-UV [(n)-UV] region can play the role of activator in a narrow green-emitting phosphor. This is potentially useful in (n)-UV (380420nm) GaN-based LEDs through efficient energy feeding by allowing 4f5d absorption of Ce3+ with high oscillator strength.

© 2010 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Design, synthesis and characterization of a new apatite phosphor Sr4La2Ca4(PO4)6O2:Ce3+ with long wavelength Ce3+ emission

Ge Zhu, Yurong Shi, Masayoshi Mikami, Yasuo Shimomura, and Yuhua Wang
Opt. Mater. Express 3(2) 229-236 (2013)

Full-color emission generation from single phased phosphor Sr10[(PO4)5.5(BO4)0.5](BO2): Ce3+, Mn2+, Tb3+ for white light emitting diodes

Ge Zhu, Zhipeng Ci, Qian Wang, Yurong Shi, and Yuhua Wang
Opt. Mater. Express 3(11) 1810-1819 (2013)

Blue-white-green tunable luminescence from Ba2Gd2Si4O13:Ce3+,Tb3+ phosphors excited by ultraviolet light

Hai Guo, Hao Zhang, JingJing Li, and Fang Li
Opt. Express 18(26) 27257-27262 (2010)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription