Etching mechanism of diamond by Ni nanoparticles for fabrication of nanopores

Mehedi, Hasan-al; Arnault, Jean-Charles; Eon, David; Hébert, Clément; Carole, Davy; Omnès, Franck; Gheeraert, Etienne

doi:10.1016/j.carbon.2013.03.038

Cited by 61 publications

(33 citation statements)

References 35 publications

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“…The interaction at the nickel/diamond interface is a key question in a variety of applications, such as epitaxial growth of diamond lms on nickel substrates, 1,2 catalytic etching of diamond surfaces, [3][4][5][6][7][8] and the design of diamond-metal composites with nickel-containing binders. [9][10][11] It is also of great interest from the fundamental point of view as the processes occurring at the nickel/diamond interface exemplify the interaction between two phases, one of which is metastable.…”

Section: Introductionmentioning

confidence: 99%

Towards a better understanding of nickel/diamond interactions: the interface formation at low temperatures

et al. 2015

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We report the formation and development of the interface between diamond and nickel in partially densified compacts obtained from powder mixtures by Spark Plasma Sintering, hot pressing and conventional sintering at 700 and 900 Ctemperatures, which are well below the melting point of nickel and even below that of the nickel-graphite eutectic. The nickel particles sintered among themselves and formed joints with facets of the diamond crystals. Most of these joints fractured cohesively leaving Ni-containing patches on the diamond facets. The microstructure of the patches adhered to the diamond surface in compacts sintered at 900 C and their geometry and orientation relative to the edges of the diamond facets suggest that the formation and development of the nickel/ diamond interface are associated with melting and solidification of the melt according to certain directions of the diamond crystalline lattice. A possible explanation of the formation of a liquid at such a low temperature is contact melting of a metastable eutectic between nickel and diamond.

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Section: Introductionmentioning

confidence: 99%

Towards a better understanding of nickel/diamond interactions: the interface formation at low temperatures

et al. 2015

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“…However, the pores do not span the entirety of the diamond film and the pore density is often very high. [43][44][45][46] Masuda and coworkers reported a method for the fabrication of sub-micron thru-hole pores in polycrystalline diamond using oxygen plasma etching. [47] However, the dense array produced rendered the material microporous making it unsuitable for particle translocation studies.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Fabrication of a single sub-micron pore spanning a single crystal (100) diamond membrane and impact on particle translocation

Webb

Martin

Johnson

et al. 2017

Carbon

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“…Instead of using diamond wires, several teams suggested the use of diamond pores to avoid any problem linked to access resistance [170,171]. They thus show that a local etching of the diamond surface is possible using metallic nanoparticles.…”

Section: Straightforward Structurationmentioning

confidence: 99%

Diamond Biosensors

Hébert¹,

Ruffinatto²,

Bergonzo³

2014

Carbon for Sensing Devices

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Diamond is wide band gap semiconductor presenting many extreme properties. It is notably known as the most stable material with the highest chemical inertness, the highest mechanical hardness and the highest thermal conductivity [1-3]. Since the mid 1970s it has been possible to grow synthetic diamond by several methods. High Pressure High Temperature techniques that mimic the diamond formation in the earth's crust were first developed [4-6]. Then Chemical Vapour Deposition (CVD) methods enable diamond growth at laboratory scale [7-9] as well as the control the P-type and Ntype doping of diamond [10-13]. Besides, it is possible to tune the diamond electrical properties form very resistive to metallic thanks to the P-type doping with boron [14]. Current achievements have enabled the development of diamond sensors that can operate in extreme conditions [15-17]. After being used for its mechanical and thermal properties, diamond was considered for chemical sensing. In fact the chemical stability and the close-to-metallic conductivity of diamond make it a powerful tool for electrochemical detection in various environment. Furthermore, the diamond is an ideal substrate for surface functionalization thanks to the wide and very known carbon based chemistry. Such a feature combined to the outstanding electrochemical properties of the diamond electrodes have enable the production of very efficient biosensors and biochips. Diamond is also an interesting sensor for medical imaging. Its carbon nature, well tolerated by living tissues, are actually very useful for its use as a biosensor capable of working in contact with bio-environments as well as real neuronal interfaces. Both those topics will be discussed in details in the following pages. In a first part an overview on electrochemical based biosensors and their performance is described. Then in a second half of the chapter, novel applications where diamond is directly used as an electrode for neural tissue interfacing is presented in details.

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Etching mechanism of diamond by Ni nanoparticles for fabrication of nanopores

Cited by 61 publications

References 35 publications

Towards a better understanding of nickel/diamond interactions: the interface formation at low temperatures

Towards a better understanding of nickel/diamond interactions: the interface formation at low temperatures

Fabrication of a single sub-micron pore spanning a single crystal (100) diamond membrane and impact on particle translocation

Diamond Biosensors

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