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首页> 外文期刊>Optical Materials >Enhanced photoelectric performance of nanorod TiO_2 film embedded with gold nanoparticles applied in dye sensitized solar cells studied by OptiFDTD
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Enhanced photoelectric performance of nanorod TiO_2 film embedded with gold nanoparticles applied in dye sensitized solar cells studied by OptiFDTD

机译：通过OptiFDTD研究应用于染料敏化太阳能电池的金纳米粒子嵌入纳米棒TiO_2薄膜的增强光电性能

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摘要

We developed fundamental design principles to enhance absorption and power properties of nanorod TiO2 photo-anode films in dye sensitized solar cells (DSSCs) over a broad wavelength range by embedding plasmonic gold nanoparticles (NPs). The plasmon-induced electric field distribution in nanorod TiO2 photoanode film embedded with sphere gold NPs has been investigated using finite-difference time domain (FDTD) method based on Maxwell equation. The simulation was done for 500 and 1100 nm of incident plane wave wavelength. FDTD simulation indicates that by the localized surface plasmon resonance effect, the strong photo scattering took place and this increase the absorption path length towards near infrared region inside the active area (anode film) of the solar cell. Furthermore, the power absorption increases from the anode-films that embedded metal NPs of small diameter (40-60 nm) with large gap (10-18 nm) to that of the metal NPs of large diameter (100-150 nm) with small gap (2-6 nm).
机译：我们开发了基本的设计原理，以通过嵌入等离激元金纳米颗粒（NP）来在较宽的波长范围内增强染料敏化太阳能电池（DSSC）中纳米棒TiO2光电阳极薄膜的吸收和功率性能。利用基于麦克斯韦方程的时域有限差分法（FDTD），研究了球形金纳米粒子包裹的纳米棒TiO2光阳极薄膜中的等离子体激元电场分布。对500和1100 nm的入射平面波波长进行了仿真。 FDTD模拟表明，通过局部表面等离振子共振效应，发生了强烈的光散射，这增加了在太阳能电池活性区域（阳极膜）内部朝向近红外区域的吸收路径长度。此外，功率吸收从嵌入具有大间隙（10-18 nm）的小直径（40-60 nm）的金属NP的阳极膜到具有小的间隙（10- 18 nm）的大直径金属NP的阳极膜增加。间隙（2-6 nm）。

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