Structural and optical properties of Ce³⁺, Yb³⁺ Co-doped YAG films by pulsed laser deposition

Abstract

Ce³⁺, Yb³⁺ co-doped Y₃Al₅O₁₂ films were prepared by pulse laser deposition. X-ray diffraction, X-ray photoelectron spectroscopy, photoluminescence spectra were used to characterize their structural and luminescent properties. Near-infrared quantum cutting from the films was observed via a cooperative energy transfer from Ce³⁺ to Yb³⁺ ions. The high quantum efficiency of the films implies that Ce³⁺,Yb³⁺ co-doped Y₃Al₅O₁₂ films have potential application by tuning the solar spectrum to enhance the efficiency of silicon solar cells.

Keywords

YAG: Ce³⁺,Yb³⁺ films / pulsed laser deposition / downconversion

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