Ozaki Ryotaro, Yamada Tatsuya, Yudate Shinji, Kadowaki Kazunori, Sato Hisako
Department of Electrical and Electronic Engineering and Computer Science, Graduate School of Science and Engineering, Ehime University, Matsuyama, 790-8577, Japan.
Department of Chemistry, Graduate School of Science and Engineering, Ehime University, Matsuyama, 790-8577, Japan.
Sci Rep. 2018 Nov 20;8(1):17119. doi: 10.1038/s41598-018-35467-4.
A metal enhanced emission of more than 20-fold is observed from a Langmuir-Blodgett (LB) monolayer on a planar aluminum layer with a polymer spacer. The spectral change of the metal enhanced emission using the metal layer is discussed experimentally and theoretically. Finite-difference time-domain simulations and transfer matrix calculations have been performed to investigate the cause of the enhancement. The analytical solution of the enhancement factor of the interference enhancement is also derived assuming the planar aluminum layer as a perfect electric conductor. Furthermore, we have demonstrated control of emission color of the LB film from the yellow-green to blue or red using the metal enhanced emission.
在带有聚合物间隔层的平面铝层上的朗缪尔-布洛杰特（LB）单分子层中观察到金属增强发射超过20倍。通过实验和理论探讨了使用金属层时金属增强发射的光谱变化。已进行时域有限差分模拟和转移矩阵计算以研究增强的原因。假设平面铝层为理想导体，还推导了干涉增强的增强因子的解析解。此外，我们已经证明利用金属增强发射可以控制LB膜的发射颜色从黄绿色变为蓝色或红色。
