Silicon Conical Structures by Metal Assisted Chemical Etching

Pérez-Díaz, Oscar; Quiroga‐González, Enrique

doi:10.3390/mi11040402

Cited by 10 publications

(3 citation statements)

References 32 publications

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“…Moreover, metal-assisted chemical etching (MACE) can be used to fabricate Si conical structures [101]. This complex technique consists of the following steps: Figures 1 and 3 show that the shape and size of the conical structures vary depending on the synthesis method and process parameters.…”

Section: Other Methodsmentioning

confidence: 99%

Nanocones: A Compressive Review of Their Electrochemical Synthesis and Applications

Skibińska,

Żabiński

2024

Materials

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The development in the field of nanomaterials has resulted in the synthesis of various structures. Depending on their final applications, the desired composition and therefore alternate properties can be achieved. In electrochemistry, the fabrication of bulk films characterized by high catalytic performance is well-studied in the literature. However, decreasing the scale of materials to the nanoscale significantly increases the active surface area, which is crucial in electrocatalysis. In this work, a special focus is placed on the electrodeposition of nanocones and their application as catalysts in hydrogen evolution reactions. The main paths for their synthesis concern deposition into the templates and from electrolytes containing an addition of crystal modifier that are directly deposited on the substrate. Additionally, the fabrication of cones using other methods and their applications are briefly reviewed.

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Section: Other Methodsmentioning

confidence: 99%

Nanocones: A Compressive Review of Their Electrochemical Synthesis and Applications

Skibińska,

Żabiński

2024

Materials

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“…For straight-hole processing, conventional processing technologies include micro-drilling, micro-milling, and stamp-forming [1] [2]. Regarding tapered hole processing, the common processing technologies include electroforming, electrical discharge machining, etching, and laser [3][4] [5].…”

Section: Introductionmentioning

confidence: 99%

Applying Stamping Without Die to Micro-hole Array Processing

Hung¹,

Hsu²

2023

Preprint

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Aluminum alloy (Al6061) sheet micro-hole processing is extensively used in smartphones, tablet PC, and smart wearable devices. The micro-hole processing is commonly performed using laser, micro drilling, microstamping, micro discharge, and chemical etching technologies. Micro-stamping technology is characterized by precision and rapid processing, but the precision positioning of the punch head and lower die is one of the major difficulties in micro-hole stamping, especially in manufacturing array micro-holes. This study used stamping without die technology. This technology uses an array punch head to punch the lower die holes on the base, then performs array micro-hole stamping. The experimental results show that a micro-hole array with 37 micro-holes were successfully manufactured and can be reproduced many times. Tapered array micro-holes with a high aspect ratio can be manufactured using this stamping without die technology; the micro-hole depth can be 260μm, the inlet diameter is 116μm, and the outlet diameter is 25μm. This study has successfully developed the feasibility of array micro-hole stamping technology.

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“…In order to obtain complex structures, different strategies have been developed based on chemical etching [ 10 , 11 ], lithographic techniques [ 12 , 13 ] or template-based methods [ 14 , 15 ]. Laser-based methods have demonstrated to be effective in the fabrication of surface micro- and nanostructures, which have found a wide range of applications [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Straightforward Patterning of Functional Polymers by Sequential Nanosecond Pulsed Laser Irradiation

et al. 2021

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Laser-based methods have demonstrated to be effective in the fabrication of surface micro- and nanostructures, which have a wide range of applications, such as cell culture, sensors or controlled wettability. One laser-based technique used for micro- and nanostructuring of surfaces is the formation of laser-induced periodic surface structures (LIPSS). LIPSS are formed upon repetitive irradiation at fluences well below the ablation threshold and in particular, linear structures are formed in the case of irradiation with linearly polarized laser beams. In this work, we report on the simple fabrication of a library of ordered nanostructures in a polymer surface by repeated irradiation using a nanosecond pulsed laser operating in the UV and visible region in order to obtain nanoscale-controlled functionality. By using a combination of pulses at different wavelengths and sequential irradiation with different polarization orientations, it is possible to obtain different geometries of nanostructures, in particular linear gratings, grids and arrays of nanodots. We use this experimental approach to nanostructure the semiconductor polymer poly(3-hexylthiophene) (P3HT) and the ferroelectric copolymer poly[(vinylidenefluoride-co-trifluoroethylene] (P(VDF-TrFE)) since nanogratings in semiconductor polymers, such as P3HT and nanodots, in ferroelectric systems are viewed as systems with potential applications in organic photovoltaics or non-volatile memories.

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Silicon Conical Structures by Metal Assisted Chemical Etching

Cited by 10 publications

References 32 publications

Nanocones: A Compressive Review of Their Electrochemical Synthesis and Applications

Nanocones: A Compressive Review of Their Electrochemical Synthesis and Applications

Applying Stamping Without Die to Micro-hole Array Processing

Straightforward Patterning of Functional Polymers by Sequential Nanosecond Pulsed Laser Irradiation

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