Kowal Dominik, Chen Yuntian, Birowosuto Muhammad Danang
Łukasiewicz Research Network-PORT Polish Center for Technology Development, Stabłowicka 147, 54-066 Wrocław, Poland.
School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.
Micromachines (Basel). 2025 Apr 1;16(4):424. doi: 10.3390/mi16040424.
Recent advancements in metal/perovskite photodetectors have leveraged plasmonic effects to enhance the efficiency of photogenerated carrier separation. In this work, we present an innovative approach to designing heterostructure photodetectors that involved integrating a perovskite film with a plasmonic metasurface. Using finite-difference time-domain (FDTD) simulations, we investigated the formation of hybrid photonic-plasmonic modes and examined their quality factors in relation to loss mechanisms. Our results demonstrate that these hybrid modes facilitated strong light confinement within the perovskite layer, with significant intensity enhancement at the metal-perovskite interface-an ideal condition for efficient charge carrier generation. We also propose the use of low-bandgap perovskites for direct infrared passive detection and explore the potential of highly Stokes-shifted perovskites for active detection applications, including ultraviolet and X-ray radiation.
金属/钙钛矿光探测器的最新进展利用了等离子体效应来提高光生载流子分离的效率。在这项工作中，我们提出了一种设计异质结构光探测器的创新方法，该方法涉及将钙钛矿薄膜与等离子体超表面集成。使用时域有限差分（FDTD）模拟，我们研究了混合光子-等离子体模式的形成，并研究了它们与损耗机制相关的品质因数。我们的结果表明，这些混合模式促进了钙钛矿层内的强光限制，在金属-钙钛矿界面处有显著的强度增强——这是有效产生电荷载流子的理想条件。我们还提出使用低带隙钙钛矿进行直接红外被动探测，并探索高斯托克斯位移钙钛矿在主动探测应用中的潜力，包括紫外线和X射线辐射。
