Complete optical absorption in hybrid halide perovskites based on critical coupling in the communication band

被引：18
作者：
Cheng, Zi-qiang [1 ]
Luo, Xin [1 ]
Xu, Liang [2 ]
Zhai, Xiang [3 ]
Wang, Ling-ling [3 ]
机构：
[1] East China Jiaotong Univ, Sch Sci, Nanchang 330013, Jiangxi, Peoples R China
[2] Jiangxi Univ Sci & Technol, Energy Mat Comp Ctr, Nanchang 330013, Jiangxi, Peoples R China
[3] Hunan Univ, Sch Phys & Elect, Minist Educ, Key Lab Micronano Optoelect Devices, Changsha 410082, Hunan, Peoples R China
来源：
OPTICS EXPRESS | 2020年 / 28卷 / 09期
基金：
中国国家自然科学基金;
关键词：
MOLYBDENUM-DISULFIDE; PERFECT ABSORPTION; BLACK PHOSPHORUS; LIGHT; CONFINEMENT;
D O I：
10.1364/OE.392998
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In order to remarkably enhance the absorption capability of (CH3NH3)PbI3, a tunable narrow-band (CH3NH3)PbI3-based perfect absorber based on the critical coupling with guided resonance is proposed. By using the finite-difference time-domain (FDTD) simulations, a complete absorption peak is achieved at the wavelength of 1310 nm. Moreover, we have compared the simulation results with theoretical calculations, which agree well with each other. By changing related structural parameters, the wavelength of absorption peak can be tuned effectively. Furthermore, the proposed absorber can tolerate a relatively wide range of incident angles and demonstrate polarization-independence. In addition to (CH3NH3)PbI3, the complete optical absorption in the other halide perovskites can be realized by the same mechanism. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：14151 / 14160
页数：10
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