| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1495518 | Optical Materials | 2010 | 4 Pages |
Abstract
An efficient near-infrared (NIR) quantum cutting (QC) in Ce3+, Yb3+ co-doped YBO3 phosphors has been demonstrated, which involves the emission of two low-energy NIR photons (around 973 nm) from an absorbed ultra-violet (UV) photon at 358 nm via a cooperative energy transfer (CET) from Ce3+ to Yb3+ ions. Yb3+ concentration dependent quantum efficiency has been calculated and the maximum efficiency approaches up to 175% before reaching the critical concentration quenching threshold. The development of NIR QC Ce3+, Yb3+ co-doped phosphors may open up a new approach to achieve high efficiency silicon-based solar cells by means of downconversion.
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Authors
JinDeng Chen, Hai Guo, ZhengQuan Li, Hao Zhang, YiXi Zhuang,