Bai Ping, Ter Huurne Stan, van Heijst Erik, Murai Shunsuke, Gómez Rivas Jaime
Department of Applied Physics and Institute for Photonic Integration, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
J Chem Phys. 2021 Apr 7;154(13):134110. doi: 10.1063/5.0042056.
Using a particle swarm optimization algorithm and finite-difference in time-domain simulations, we optimize the coupling strength between excitons in poly(3-hexylthiophene-2,5-diyl) (P3HT) and surface lattice resonances in open cavities defined by arrays of aluminum nanoparticles. Strong light-matter coupling and the formation of exciton-polaritons are demonstrated. Nanoparticle arrays with optimal dimensions have been fabricated and measured, validating the predictions by the numerical method. P3HT is a regioregular semiconducting polymer used as a donor material in acceptor-donor blends for organic photovoltaic applications. Our results demonstrate the efficacy of the proposed method for the optimization of light-matter coupling and its potential application for the enhanced performance of optoelectronic devices.
通过使用粒子群优化算法和时域有限差分模拟，我们优化了聚（3-己基噻吩-2,5-二亚基）（P3HT）中的激子与由铝纳米颗粒阵列定义的开放腔中的表面晶格共振之间的耦合强度。展示了强光-物质耦合以及激子极化激元的形成。已经制备并测量了具有最佳尺寸的纳米颗粒阵列，验证了数值方法的预测。P3HT是一种区域规整的半导体聚合物，在有机光伏应用的受体-供体共混物中用作供体材料。我们的结果证明了所提出的用于优化光-物质耦合的方法的有效性及其在提高光电器件性能方面的潜在应用。
