期刊
OPTICS LETTERS
卷 37, 期 12, 页码 2280-2282出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.37.002280
关键词
-
类别
资金
- French Research National Agency (ANR) through the Habitat intelligent et solaire photovoltaique program [ANR-09-HABISOL-009]
- cluster ENERGIES Rhone-Alpes
- TENERRDIS pole de competitivite
The deposition of a thin layer of a quantum-cutter material on top of silicon-based solar cells seems to be a promising solution to reduce the thermalization losses. This mechanism has been reported in materials codoped with Pr3+-Yb3+, where Pr3+ can sensitize two Yb3+ ions for one absorbed blue photon. In the present Letter, we analyze precisely energy transfers between Pr3+ and Yb3+ in CaYAlO4, and we measure a quantum-cutting rate of 145%. We show that a very efficient back transfer from Yb3+ toward the (1)G(4) level of Pr3+ ion leads to a strong reduction of the quantum yield. (C) 2012 Optical Society of America
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据