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Investigation of Green Up‐Conversion Behavior in Y6W2O15:Yb3+,Er3+ Phosphor and its Verification in 973‐nm Laser‐Driven GaAs Solar Cell

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The green up‐conversion (UC) behavior was observed in a new phosphor Y6W2O15:Er3+. Taking the concentration quenching and sensitization effect into consideration, we obtained the optimized phosphor Y5.86W2O15:0.05Yb3+,0.09Er3+. With the adhesion of Y5.86W2O15:0.05Yb3+,0.09Er3+ phosphor layer, the spectral response was first observed in a 973‐nm laser‐driven GaAs solar cell. A maximum output power of 0.339 μW was measured using a 300‐μm UC phosphor layer on illumination with a 973‐nm laser at 145.65 W/cm2. These results verified the UC effect of the Y5.86W2O15:0.05Yb3+,0.09Er3+ phosphor synthesized herein.
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Document Type: Research Article

Publication date: October 1, 2012

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