Novel SrGd2Al2O7:Mn4+, Nd3+, and Yb3+ phosphors for c-Si solar cells

Autor:	Liang Zhang, Langping Dong, Hongpeng You, Shuwen Yin, Yonghui Xu, Xiudi Wu
Rok vydání:	2021
Předmět:	Inorganic Chemistry Emission band Materials science Energy transfer Energy conversion efficiency Analytical chemistry Phosphor Luminescence
Zdroj:	Dalton Transactions. 50:7017-7025
ISSN:	1477-9234 1477-9226
DOI:	10.1039/d1dt00320h
Popis:	Novel single-doped and codoped SrGd2Al2O7-based (SGA) phosphors with tunable emission were synthesized via the solid-state reaction approach. The optimal SGA:0.0008Mn4+ phosphor presents an emission band peaking at 709 nm and shows great red luminescence properties. With the incorporation of Nd3+/Yb3+ into SGA:0.0008Mn4+, an efficient energy transfer Mn4+ → Nd3+/Yb3+ was observed. When Nd3+ and Yb3+ were codoped into SGA:0.0008Mn4+, an energy transfer mechanism from Mn4+ to Nd3+ to Yb3+ was found on the basis of the energy transfer mediation of Nd3+ connecting the Mn4+ and Yb3+ luminescent centers. It results in a strong near-infrared emission in the spectral region of high response of c-Si solar cells, which suggests a potential approach to improve the energy conversion efficiency of c-Si solar cells. The findings offer a novel route to design new down-conversion luminescent materials for the c-Si solar cells.
Databáze:	OpenAIRE
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