International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Dec 9, 2020 - Dec 11, 2020
Virtual Conference

4:10 PM - 6:10 PM

[PHp1-3L] Temperature Dependence of Photoluminescence Intensity in Y4Si2O7N2:Eu3+ Red Phosphors Synthesized in NH3 Atmosphere

*Ken Kinoshita1, Misa Kawashima1, Rentaro Furuie1, Tadashi Ishigaki1, Takashi Kunimoto2, Koutoku Ohmi1 (1. Tottori Univ.(Japan), 2. Tokushima Bunri Univ.(Japan))

Y4Si2O7N2:Eu3+, PL Temperature Dependence, Charge Transfer State, Activation Energy

https://doi.org/10.36463/idw.2020.0355

The charge transfer state (CTS) energy of Y4Si2O7N2:Eu3+ phosphor was 3.61 eV which is almost the same as that of La2O2S:Eu3+. The activation energy from the CTS to 4f ground state is 0.24 eV The results suggest that Y4Si2O7N2:Eu3+ has several non-radiative transitions, due to crystal defects.