Simulation of light transmission through core-shell heterostructure nanomaterials

被引：1

作者：

Yin, Yunzhen ^{[1
,2
]}

Bu, Yanyan ^{[3
]}

Wang, Xiangfu ^{[1
,2
,4
,5
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Peoples R China

[2] Nanjing Univ Posts & Telecommun, Coll Microelect, Nanjing 210023, Peoples R China

[3] Nanjing Univ Posts & Telecommun, Coll Sci, Nanjing 210023, Peoples R China

[4] Nanjing Univ Posts & Telecommun, Natl Elect Sci & Technol Expt Teaching Demonstrat, Nanjing 210023, Peoples R China

[5] Nanjing Univ Posts & Telecommun, Natl Informat & Elect Technol Virtual Simulat Exp, Nanjing 210023, Peoples R China

来源：

CHEMICAL PHYSICS | 2020年 / 535卷

基金：

中国国家自然科学基金;

关键词：

Core-shell; Admittance recursive method; Light transmission; RESPONSIVE PHOTOCATALYTIC ACTIVITY; UP-CONVERSION NANOPARTICLES; LANTHANIDE-DOPED NAYF4; NANOCRYSTALS; LUMINESCENCE; THERMOMETRY; EMISSION; PLASMON; TIO2; YB3+;

D O I：

10.1016/j.chemphys.2020.110785

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Even though the core-shell nanomaterials were reported as the most efficient up-conversion materials to achieve the energy migration, the light transmission mechanism in core-shell heterostructure and the energy loss induced by multilayer shells have not been studied. In this work, we report the admittance recursive method to simulate the transmission process of TE and TM waves and calculate the light transmission efficiency in core-shell heterostructure. The effects of multilayer shell thickness, wavelength of transmitted light, and critical angle on the light transmittance of core-shell nanoparticles (NPs) are studied. It is found that the TE wave transmission efficiency from NaYF4@SiO2 core-shell heterostructure can reach more than 96.4%, while the values of transmission efficiency of TE and TM waves are less than 40% in NaYF4@SiO2@Ag core-shell-shell heterostructure. Only 1540 nm and 980 nm infrared lights transmit from the NaYF4@Ag@SiO2@Ag multilayer shell heterostructure.

引用

页数：13

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