Journal
OPTICS COMMUNICATIONS
Volume 441, Issue -, Pages 170-175Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2019.02.048
Keywords
Luminescence; Surface plasmons resonance; Quantum cutting; Nanomaterials; Rare-earth-doped materials
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Funding
- National Natural Science Foundation of China [11204039, 51202033]
- Natural Science Foundation of Fujian Province of China [2015J01243, 2016J01213, 2017J01399, 2017J01677]
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The double plasmon modes of noble metals are utilized to efficiently enhance the near-infrared (NIR) quantum cutting (QC) luminescence at 977 nm in beta-NaYF4:Er3+ nanoparticles (NPs) under the excitation of 486 nm. The surface plasmon resonance (SPR) of Ag nanocubes (NCs) and Au nanorods (NRs) are simultaneously utilized to enhance the excitation efficiency and emission rate of NIR QC luminescence in beta-NaYF4: Er3+ NPs, respectively, and the maximum enhancement factor is 3.5 when the concentration of Au NRs is 0.225% and Ag NCs is 0.06%. It has significantly improved the enhancement factor compared to beta-NaYF4:Er3+ NPs decorated with the Ag NCs or Au NRs, respectively. Our research may improve photovoltaic conversion efficiency by making better use of the QC layer on top of silicon-based solar cells.
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