Anomalous dips in reflection spectra of optical polymers deposited on plasmonic metals
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We have studied reflection spectra of dye-doped and undoped polymers deposited onto Ag and Au substrates and found anomalous dips in the UV spectral range. On top of Ag substrates, theKeywords:
Nanomaterials
Reflection
Optical materials
Optical spectra
plasmonic 结构的实现通常要求昂贵的制造技术，例如电子横梁和集中的离子横梁平版印刷术，允许低维的结构的自顶向下的制造。以一种自底向上的方式做 plasmonic 结构的另一条途径是胶体的合成，它对液体状态应用或聚集问题是重要挑战的很薄的稳固的电影方便。用这些方法准备的体系结构典型地不为容易的处理和方便集成是足够柔韧的。因此，开发没有不利地影响 plasmonic，有大规模尺寸的柔韧的站台展示的新 plasmonic 在高需求。作为一个答案，这里我们在场合成结构由金 nanoparticles (Au NP ) 组成在大规模上合并了到蔗糖 macrocrystals 的新 plasmonic，当保存 Au NP 的 plasmonic 性质并且在同时处理提供坚韧性时。作为概念示范的一个证明，我们在场经由在蔗糖晶体结合这些 Au NP 的 plasmonic 的绿 CdTe 量点(QD ) 的荧光改进。获得的合成材料展览厘米规模尺寸和产生的量效率(QE ) 被 58% 经由在 Au NP 和 CdTe QD 之间的相互影响提高(从 24% ～ 38%) 。而且，一从 11.0 ～ 7.40 在光致发光一生弄短 ns，对应于 2.4 的一个地改进因素，在 Au NP 的介绍之上被观察进 QD 合并 macrocrystals。这些结果建议如此的香甜的 plasmonic 晶体是有希望的让大规模柔韧的平台嵌入 plasmonic nanoparticles。
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