Near-Infrared Quantum Cutting Luminescence and Energy Transfer Mechanism of Ba<sub>2</sub>Y(BO<sub>3 </sub>)<sub>2</sub>Cl:Bi<sup>3+</sup>, Yb<sup>3+</sup> Phosphors
The quantum cutting luminescent materials have attracted a great of interest in the fields of solar cells. In this paper, the novel Ba<sub>2</sub>Y(BO<sub>3</sub>)<sub>2</sub>Cl:Bi<sup>3+</sup>, Yb<sup>3+</sup> quantum cutting phosphors wer...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2018-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8194736/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | The quantum cutting luminescent materials have attracted a great of interest in the fields of solar cells. In this paper, the novel Ba<sub>2</sub>Y(BO<sub>3</sub>)<sub>2</sub>Cl:Bi<sup>3+</sup>, Yb<sup>3+</sup> quantum cutting phosphors were prepared, and their quantum cutting luminescence and energy transfer mechanism were investigated. The visual emission of Bi<sup>3+</sup> was observed ranging from 350 to 650 nm, which is attributed to the <sup>3</sup>P<sub>1</sub>→<sup>1</sup>S<sub>0</sub> transition of Bi<sup>3+</sup>. The near infrared emission ranging from 950 to 1100 nm is due to the <sup>2</sup>F<sub>7/2</sub>→<sup>2</sup> F<sub>5/2</sub> transition of Yb<sup>3+</sup>. The cooperative energy transfer mechanism from the Bi<sup> 3+</sup> to Yb<sup>3+</sup> in Ba<sub>2</sub>Y(BO<sub>3</sub>)<sub>2</sub>Cl:Bi<sup>3+</sup>, Yb<sup> 3+</sup> phosphor was investigated, and their cooperative energy transfer process could be expressed as the Bi<sup> 3+</sup>(<sup>3</sup>P<sub>1</sub>)→Yb<sup>3+(2</sup>F<sub>5/2</sub>) + Yb<sup>3+</sup>( <sup>2</sup>F<sub>5/2</sub>). The maximum quantum cutting efficiency was about 170.2%, which suggested the Bi<sup>3+</sup> and Yb<sup>3+</sup> co-doped Ba<sub>2</sub>Y(BO<sub>3</sub>)<sub>2</sub>Cl phosphors can act as a promising candidate for the silicon solar cells. |
|---|---|
| ISSN: | 1943-0655 |