Cyan-emitting LiBaBO3:Eu2+ phosphor: Crystal structure and luminescence property comparison with LiSrBO3:Eu2+

- LiBaBO3:Eu2+ phosphor was successfully synthesized at T = 1023 K.
- LiBaBO3:Eu2+ exhibits bright cyan emission peaking at 496 nm.
- Eu2+ occupies the Ba site in LiBaBO3 forming distorted square anti-prism.
- The different luminescence emission of LiBaBO3:Eu2+ and LiSrBO3:Eu2+ was explained.