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Issue 2, 2016
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An intense NIR emission from Ca14Al10Zn6O35:Mn4+,Yb3+via energy transfer for solar spectral converters

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Abstract

To date, most current reports on the development and optimization of solar spectral converters have described the utilization of energy transfer among rare-earth ions. Here, we introduce non-rare-earth ion Mn4+ to transfer energy to Yb3+, which can exhibit strong near-infrared luminescence. It can harvest UV-blue photons and exhibits intense NIR emission of Yb3+ around 1000 nm, perfectly matching the maximum spectral response of Si solar cells. It demonstrates for the first time that efficient energy transfer occurs with a decrease in the excited state lifetime and red photoluminescence (PL) from Mn4+ with increasing Yb3+ concentration. These results demonstrate that the Mn4+ ions can be an efficient and direct sensitizer harvesting UV-blue photons. It could provide new avenues for developing harvesting Si-based solar cells.

Graphical abstract: An intense NIR emission from Ca14Al10Zn6O35:Mn4+,Yb3+via energy transfer for solar spectral converters

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Publication details

The article was received on 07 Sep 2015, accepted on 15 Nov 2015 and first published on 17 Nov 2015


Article type: Communication
DOI: 10.1039/C5DT03465E
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Citation: Dalton Trans., 2016,45, 466-468
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    An intense NIR emission from Ca14Al10Zn6O35:Mn4+,Yb3+via energy transfer for solar spectral converters

    W. Lü, M. Jiao, B. Shao, L. Zhao, Y. Feng and H. You, Dalton Trans., 2016, 45, 466
    DOI: 10.1039/C5DT03465E

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