ITO induced tunability of surface plasmon resonance of silver thin film

Hong, Richang; Wang, Xianhai; Ji, Jialin; Tao, Chunxian; Zhang, Dao Hua; Zhang, Dawei

doi:10.1016/j.apsusc.2015.08.135

Cited by 13 publications

(5 citation statements)

References 30 publications

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“…In the electronic structure of the ITO film, the Sn atom that replaces an In atom results in a single free electron. Therefore, the ITO(170 nm)/ In-Sn films are expected to have the lowest free electron density of the studied ITO NPs, resulting in the lower LSPR frequency [46], as shown in figure 5. On the other hand, it is known that plasmonic coupling takes place when the layers are close to each other, and therefore, the plasmon resonance of each layer is affected by the plasmon resonance of its neighboring layer.…”

Section: Resultsmentioning

confidence: 96%

Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITO/In-Sn bilayer structure

et al. 2017

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Tuning the localized surface plasmon resonance (LSPR) in doped semiconductor nanoparticles (NPs), which represents an important characteristic in LSPR sensor applications, still remains a challenge. Here, indium tin oxide/indium tin alloy (ITO/In-Sn) bilayer films were deposited by electron beam evaporation and the properties, such as the LSPR and surface morphology, were investigated by UV-VIS-NIR double beam spectrophotometer and atomic force microscopy (AFM), respectively. By simply engineering the thickness of ITO/In-Sn NPs without any microstructure fabrications, the LSPR wavelength of ITO NPs can be tuned by a large amount from 858 to 1758 nm. AFM images show that the strong LSPR of ITO NPs is closely related to the enhanced coupling between ITO and In-Sn NPs. Blue shifts of ITO LSPR from 1256 to 1104 nm are also observed in the as-annealed samples due to the higher free carrier concentration. Meanwhile, we also demonstrated that the ITO LSPR in ITO/In-Sn NPs structures has good sensitivity to the surrounding media and stability after 30 d exposure in air, enabling its application prospects in many biosensing devices.

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Section: Resultsmentioning

confidence: 96%

Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITO/In-Sn bilayer structure

et al. 2017

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“…The gold grains have a preferential orientation along the (111) crystal direction. In general, for non-epitaxial deposition, the film structure tends to be along the (111) or (001) planes due to the minimum surface free energy [ 19 , 20 ]. No prominent peaks corresponding to the single silver film were observed, probably due to the amorphous nature of thin film due to the magnetron sputtering method.…”

Section: Resultsmentioning

confidence: 99%

Thermally generated Au–Ag nanostructures with tunable localized surface plasmon resonance as SERS activity substrates

2023

Heliyon

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“…[32,33] Currently, the most popular TCO material is ITO because it can be heavily doped. [28,34] Ma et al adjusted the surface plasmon resonance (SPR) frequency in the NIR region by controlling the dopant concentration and the size and shape of ITO NPs. [35] Hong et al studied the effect of ITO as a dielectric material by comparing the SPR wavelength and absorption intensity of the ITO/Ag and Ag layers in the visible region.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Energy Harvesting Using Solar Radiation Pressure Enhanced by Surface Plasmons at Visible to Near‐Infrared Wavelengths

et al. 2023

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A light‐pressure electric generator (LPEG) device, which harvests piezoelectric energy using solar radiation enhanced by surface plasmons (SPs), is demonstrated. The design of the device is motivated by the need to drastically increase the power output of existing piezoelectric devices based on SP resonance. The solar radiation pressure can be used as an energy source by employing an indium tin oxide (ITO)/Ag double layer to excite the SPs in the near‐infrared (NIR) and visible light regions. The LPEG with the ITO layer generates an open‐circuit voltage of 295 mV, a short‐circuit current of 3.78 μA, and a power of 532.3 μW cm−2 under a solar simulator. The power of the LPEG device incorporating the ITO layer increased by 38% compared to the device without the ITO layer. The effect of the ITO layer on the electrical output of the LPEG was analyzed in detail by measuring the electrical output when visible and NIR lights are incident on the device using optical bandpass filters. In addition, finite‐difference time‐domain simulation confirmed that the pressure of the incident light can be further amplified by the ITO/Ag double layer. Finally, the energy harvested from the LPEG was stored in capacitors to successfully illuminate red light‐emitting diodes.

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ITO induced tunability of surface plasmon resonance of silver thin film

Cited by 13 publications

References 30 publications

Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITO/In-Sn bilayer structure

Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITO/In-Sn bilayer structure

Thermally generated Au–Ag nanostructures with tunable localized surface plasmon resonance as SERS activity substrates

Piezoelectric Energy Harvesting Using Solar Radiation Pressure Enhanced by Surface Plasmons at Visible to Near‐Infrared Wavelengths

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