论文标题
杂化透明导电氧化物/等离子培养基的掺杂依赖性光学响应
Doping-Dependent Optical Response of a Hybrid Transparent Conductive Oxide/Plasmonic Medium
论文作者
论文摘要
了解等离激元纳米颗粒与透明导电氧化物之间的相互作用对下一代光伏，光电和节能固态照明设备的发展起来。我们研究了由铝掺杂的氧化锌薄膜沉积在氧化锌薄膜上的杂化培养基的光学响应，并通过光谱椭圆法具有不同的掺杂浓度。首先解决了裸偶氮的介电函数，揭示了掺杂诱导的效果，例如带隙移位和自由载体的外观。在混合介质中，观察到Au NP的局部表面等离子体共振的蓝光观察到底物的浓度增加，这归因于两种材料与掺杂依赖性依赖性变化之间的电荷转移的发生。
Understanding the interaction between plasmonic nanoparticles and transparent conductive oxides is instrumental to the development of next-generation photovoltaic, opto-electronic and energy-efficient solid-state lighting devices. We investigated the optical response of hybrid media composed of gold nanoparticles deposited on aluminum-doped zinc oxide thin films with varying doping concentration by spectroscopic ellipsometry. The dielectric functions of bare AZO were addressed first, revealing doping-induced effects such as the band-gap shift and the appearance of free carriers. In the hybrid media, a blueshift of the localized surface plasmon resonance of Au NPs as a function of increasing Al-doping of the substrate was observed, ascribed to the occurrence of a charge transfer between the two materials and the doping-dependent variation of the polarizability of the substrate.
