Cooperative downconversion in Y 3 Al 5 O 12  : RE 3+ ,Yb 3+  (RE = Tb, Tm, and Pr) nanophosphors | Zendy

Zhang Q. Y. | Zendy; Liang X. F. | Zendy

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Cooperative downconversion in Y 3 Al 5 O 12 : RE 3+ ,Yb 3+ (RE = Tb, Tm, and Pr) nanophosphors

Author(s) -

Zhang Q. Y.,

Liang X. F.

Publication year - 2008

Publication title -

journal of the society for information display

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.578

H-Index - 52

eISSN - 1938-3657

pISSN - 1071-0922

DOI - 10.1889/1.2953482

Subject(s) - photon , luminescence , optoelectronics , ion , photonics , band gap , quantum efficiency , materials science , silicon , physics , atomic physics , optics , quantum mechanics

— Efficient near‐infrared (NIR) quantum cutting (QC) through cooperative downconversion in Y 3 Al 5 O 12 : RE 3+ ,Yb 3+ (RE = Tb, Tm, and Pr) nanophosphors has been demonstrated, which involves the conversion of the visible photon from RE 3+ into the NIR emission of Yb 3+ with the optimal quantum efficiency approaching 200%. The authors have analyzed the measured luminescence spectra and decay lifetimes and propose a mechanism to rationalize the NIR QC effect. The results indicate the potential of developing RE 3+ ‐Yb 3 dual‐ion‐based nanophosphors for the downconversion of high‐energy photons to multiple photons with an energy greater than the bandgap of silicon‐based‐photonics display devices .

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