发光学报2011，Vol.32Issue(11)：1133-1138,6.
高量子效率的近红外量子裁剪材料LaF3:Ho3+,Yb3+的合成及其发光性能
Highly Efficient Near-Infrared Quantum Cutting in LaF3:Ho3+ ,Yb3+ for Solar Cells
吐尔逊·艾迪力比克 1邓楷模 2陈永虎 3艾尔肯·斯地克 2尹民2
作者信息
- 1. 新疆师范大学物理与电子工程学院,新疆乌鲁木齐,830054
- 2. 中国科技大学物理学院,安徽合肥,230060
- 3. 新疆伊犁师范学院凝聚态相变与微结构自治区重点实验室,新疆伊宁,835000
- 折叠
摘要
Abstract
LaF3 Crystalline powders doped with Ho3+and Yb2+ were prepared by co-precipitation method. The samples were characterized by XRD. Single-phase LaF3: Ho3+ , Yb + powders with hexagon structure were obtained in our experimental process. Excitation spectra, emission spectra, and decay curves were used to characterize the samples at room temperature. The energy transfer from Ho3+ to Yb3+ was confirmed. Further it is recognized as a resonant energy transfer process. Through the process, the samples could absorb ultraviolet photons with 300 ~ 360 nm band and emit two near-infrared photons around 1 μm. This result reveals the possibility of violet to near-infrared quantum cutting with a quantum efficiency larger than 100% in Ho3+/ Yb co-doped fluorides, suggesting the possible application in modifying the solar spectrum to enhance the efficiency of silicon solar cells.关键词
rare earth luminescent materials/near-infrared quantum culling/Ho3+ sensilizer/solar cellsKey words
rare earth luminescent materials/near-infrared quantum culling/Ho3+ sensilizer/solar cells引用本文复制引用
吐尔逊·艾迪力比克,邓楷模,陈永虎,艾尔肯·斯地克,尹民..高量子效率的近红外量子裁剪材料LaF3:Ho3+,Yb3+的合成及其发光性能[J].发光学报,2011,32(11):1133-1138,6.
