Controlled growth of standing Ag nanorod arrays on bare Si substrate using glancing angle deposition for self-cleaning applications

AbstractIndium (III) sulfide has recently attracted much attention due to its potential in optical sensors as a photoconducting material and in photovoltaic applications as a wide direct bandgap material. On the other hand, optical absorption properties are key parameters in developing highly photosensitive photodetectors and high efficiency solar cells. We show that indium sulfide nanorod arrays produced by glancing angle deposition techniques have superior absorption and low reflectance properties compared to conventional flat thin film counterparts. We observed an optical absorption value of approximately 96% for nanorods, in contrast to 80% for conventional amorphous-to-polycrystalline thin films of indium sulfide. A photoconductivity response was also observed in the nanorod samples, whereas no measurable photoresponse was detected in conventional thin films. We give a preliminary description of the enhanced light absorption properties of the nanorods by using Shirley-George Model that predicts enhanced diffuse scattering and reduced reflection of light due the rough morphology.

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Hydrophobic Metallic Nanorods coated with Teflon Nanopatches by Glancing Angle Deposition

MRS Proceedings ◽

10.1557/proc-1188-ll09-03 ◽

2009 ◽

Vol 1188 ◽

Author(s):

Wisam J Khudhayer ◽

Rajesh Sharma ◽

Tansel Karabacak

Keyword(s):

Contact Angle ◽

Normal Incidence ◽

Glancing Angle Deposition ◽

Nanorod Arrays ◽

Hydrophobic Property ◽

Glancing Angle ◽

Shadowing Effect ◽

Glad Technique ◽

Metallic Nanorods ◽

Angle Deposition

AbstractIntroducing a hydrophobic property to vertically aligned hydrophilic metallic nanorods was investigated experimentally and theoretically. First, platinum nanorod arrays were deposited on flat silicon substrates using a sputter Glancing Angle Deposition Technique (GLAD). Then a thin layer of Teflon (nanopatches) was partially deposited on the tips of platinum nanorod at a glancing angle of  = 85° as well as at normal incidence ( = 0°) for different deposition times. We show that GLAD technique is capable of depositing ultrathin isolated Teflon nanopatches on selective regions of nanorod arrays due to the shadowing effect during GLAD. Contact angle measurements on Pt/Teflon nano-composite have shown contact angle values as high as 138°, indicating a significant increase in the hydrophobicity of originally hydrophilic Pt nanostructures. Finally, a 2D simplified wetting model utilizing Cassie and Baxter theory of heterogeneous surfaces has been developed to explain the wetting behavior of Pt/Teflon nanocomposite.

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Morphology dependent surface enhanced fluorescence study on silver nanorod arrays fabricated by glancing angle deposition

RSC Advances ◽

10.1039/c5ra03225c ◽

2015 ◽

Vol 5 (40) ◽

pp. 31341-31346 ◽

Cited By ~ 14

Author(s):

Dhruv Pratap Singh ◽

Samir Kumar ◽

J. P. Singh

Keyword(s):

Rhodamine 6G ◽

Glancing Angle Deposition ◽

Nanorod Arrays ◽

Enhanced Fluorescence ◽

Fluorescence Study ◽

Surface Enhanced Fluorescence ◽

Glancing Angle ◽

Surface Enhanced ◽

Angle Deposition

The nanorods morphology dependence of surface-enhanced fluorescence (SEF) has been investigated for Rhodamine 6G adsorbed onto silver nanorod arrays.

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Glancing Angle Deposition of Large-Scale Helical Si@Cu3Si Nanorod Arrays for High-Performance Anodes in Rechargeable Li-Ion Batteries

Nanoscale ◽

10.1039/d1nr05297g ◽

2021 ◽

Author(s):

Hsiao-Chien Wang ◽

Chih-Ming Hsu ◽

Bingni Gu ◽

Chia-Chen Chung ◽

Shu-Chi Wu ◽

...

Keyword(s):

High Performance ◽

Large Scale ◽

Glancing Angle Deposition ◽

Nanorod Arrays ◽

Glancing Angle ◽

High Theoretical Capacity ◽

Li Ion ◽

Si Anode ◽

Substantial Interest ◽

Angle Deposition

Silicon (Si) anode materials have attracted substantial interest due to its high theoretical capacity. Here, the growth of helical Si@Cu3Si nanorod arrays via glancing angle deposition (GLAD) followed by an...

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Tunable Plasmonic Resonances in TiN Nanorod Arrays

Coatings ◽

10.3390/coatings9120863 ◽

2019 ◽

Vol 9 (12) ◽

pp. 863 ◽

Cited By ~ 2

Author(s):

Yi-Jun Jen ◽

Teh-Li Chan ◽

Bo-Huei Liao ◽

Zheng-Xing Li ◽

Wei-Chen Liu ◽

...

Keyword(s):

Flow Rate ◽

Longitudinal Mode ◽

Glancing Angle Deposition ◽

Localized Surface Plasmon ◽

Nanorod Arrays ◽

Substrate Bias Voltage ◽

Deposition Parameters ◽

Glancing Angle ◽

N2 Flow Rate ◽

Angle Deposition

In this work, titanium nitride (TiN) nanorod arrays were fabricated using glancing angle deposition in a magnetron sputtering system. The deposition parameters, including the bias on the substrate and the flow rate of nitrogen, were varied to deposit various TiN nanorod arrays. Before glancing angle deposition was conducted, uniform TiN films were deposited and their permittivity spectra, for various deposition parameters, were obtained. The effect of the deposition parameters on the morphology of the nanorods is analyzed here. The polarization-dependent extinctance spectra of TiN nanorod arrays were measured and compared. Extinction, which corresponds to the longitudinal mode of localized surface plasmon resonance, can be significantly changed by tuning the N2 flow rate and substrate bias voltage during deposition.

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Extinction Properties of Obliquely Deposited TiN Nanorod Arrays

Coatings ◽

10.3390/coatings8120465 ◽

2018 ◽

Vol 8 (12) ◽

pp. 465 ◽

Cited By ~ 4

Author(s):

Yi-Jun Jen ◽

Wei-Chien Wang ◽

Kai-Lun Wu ◽

Meng-Jie Lin

Keyword(s):

Near Field ◽

Polarized Light ◽

Glancing Angle Deposition ◽

Light Extinction ◽

Angle Of Incidence ◽

Nanorod Arrays ◽

Vapor Flux ◽

Glancing Angle ◽

Angle Deposition ◽

Sputtering System

Plasmonic titanium nitride (TiN) nanorod arrays (NRA) were fabricated by glancing angle deposition in a DC magnetron reactive sputtering system. The morphology of the TiN NRA was varied by collimating the vapor flux. The transmittance, reflectance, and extinctance of slanted TiN nanorods with different lengths as functions of wavelength and angle of incidence were measured and analyzed. The extinction peaks in the spectra reveal the transverse and longitudinal plasmonic modes of TiN NRA upon excitation by s-polarized and p-polarized light, respectively. The near-field simulation was performed to elucidate localized field enhancements that correspond to high extinction. The extension of the high extinction band with an increasing length of the nanorods results in broadband and wide-angle light extinction for a TiN NRA with a thickness greater than 426 nm.

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