放电等离子烧结Ce、Yb共掺钇铝石榴石稀土荧光粉及其在光伏电池中的应用

doi:10.11896/cldb.24040014

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Abstract The utilization of spark plasma technology, known for its rapid low-temperature sintering through multi-field coupling, is prevalent across various industrial sectors due to its benefits of high efficiency, energy conservation, and eco-friendliness. In this work, Ce³⁺ and Yb³⁺ co-doped yttrium aluminum garnet rare-earth phosphors were synthesized using spark plasma sintering. The structure and morphology of the rare-earth phosphors were analyzed through X-ray diffraction and scanning electron microscopy. Additionally, their spectral characteristics were examined. The findings demonstrate that spark plasma sintering effectively enables the incorporation of Ce³⁺ and Yb³⁺ ions into the yttrium aluminum garnet lattice, resulting in a lattice constant of 1.200 5 nm. The particle size of the rare-earth phosphors post-grinding ranged from 1 μm to 2 μm. The emission spectra peaks of YAG:Ce³⁺, Yb³⁺ rare-earth phosphors were identified at 552 nm and 720 nm. Evaluation of photovoltaic cell with photo-conversion capabilities revealed a notable enhancement in relative external quantum efficiency within the 500—1 000 nm range. Furthermore, the short-circuit current density reached 35.95 mA/cm², representing a 0.51 mA/cm² improvement, and an increase in photovoltaic conversion efficiency of 1.91% was observed.

Key words： spark plasma sintering rare-earth phosphors YAG:Ce³⁺ Yb³⁺

Published: 25 November 2024 Online: 2024-11-22

CLC number:

TM914.4

Fund:Primary Research and Development Plan of Jiangsu Province (BE2016175).

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	ZHOU Weixin
	LOU Chaogang

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ZHOU Weixin,LOU Chaogang. Spark Plasma Sintering of Ce, Yb Co-doped YAG Rare-earth Phosphors and Its Application in Photovoltaic Cell[J]. Materials Reports, 2024, 38(22): 24040014-5.

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http://www.mater-rep.com/EN/10.11896/cldb.24040014 OR http://www.mater-rep.com/EN/Y2024/V38/I22/24040014

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