Coupling of Er light emissions to plasmon modes on In2O3: Sn nanoparticle sheets in the near-infrared range
Coupling of Er light emissions to plasmon modes on In2O3: Sn nanoparticle sheets in the near-infrared range
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DOI：
10.1063/1.4892004
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发表时间：
2014-07
影响因子：
4
通讯作者：
H. Matsui;Wasanthamala Badalawa;Takayuki Hasebe;S. Furuta;W. Nomura;T. Yatsui;M. Ohtsu;H. Tabata
中科院分区：
文献类型：
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作者：
H. Matsui;Wasanthamala Badalawa;Takayuki Hasebe;S. Furuta;W. Nomura;T. Yatsui;M. Ohtsu;H. Tabata
用等离子体In2O3: Sn纳米颗粒（NP）片对近红外铒光致发光（PL）进行了明显的修饰。模型和光学测量揭示了NP片中存在不同的电场（e场）。由于与Er PL的光子能量相匹配，在NP片和ZnO的Er发射层之间的界面处激发的局部电场对Er PL的光谱修饰有重要的贡献。我们还确定了Er PL修饰的临界温度，这与ZnO中的Er跃迁偶极子与NP片上的等离子体模式之间的能量转移效率有关。
Near-infrared Er photoluminescence (PL) is markedly modified using a plasmonic In2O3: Sn nanoparticle (NP) sheet. Modeling and optical measurements reveal the presence of different electric fields (E-field) in the NP sheet. The local E-field excited at the interface between the NP sheet and Er-emitting layer of ZnO contributes significantly towards the spectral modifications of Er PL due to matching with the photon energy of Er PL. We also determine the critical temperature for Er PL modifications, which is related to the energy transfer efficiency between Er transition dipoles in ZnO and the plasmon modes on the NP sheet.