Adherent and low friction nanocrystalline diamond films via adsorbing organic molecules in self-assembly seeding process

Wang, Tao; Huang, Lei; Handschuh‐Wang, Stephan; Zhang, Songquan; Li, Xingxing; Chen, Bin; Yang, Yang; Zhou, Xuechang; Tang, Yongbing

doi:10.1016/j.apsusc.2018.05.186

Cited by 18 publications

(7 citation statements)

References 41 publications

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“…Similarly, the optical and microscopy images in Figure 4f,g illustrate the complete removal of the liquid metal from the surface. This cleaning step is enabled by the high chemical inertness, high mechanical robustness, and excellent adhesion of the diamond coating [40,41]. Moreover, in the view of the excellent tunability of diamond coatings, such as crystal size, electric conductivity, thickness of the coating, etc.…”

Section: Application Of the Liquid Metal Adhesion To The Hydrophilic Diamond Coatingmentioning

confidence: 99%

“…To facilitate this, we employed a structured diamond coating, which shows good liquid metal lyophobicity in the as-prepared (hydrophobic) state, as well as excellent chemical stability towards the employed liquid metal (Galinstan) [39]. The diamond coating was also chosen due to the high chemical and mechanical resistance, as well as high tuneability in terms of electrical and thermal properties [40,41], which might be investigated in future. By oxidation with air plasma, the diamond coating becomes hydrophilic while maintaining morphology and topography.…”

Section: Introductionmentioning

confidence: 99%

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Is There a Relationship between Surface Wettability of Structured Surfaces and Lyophobicity toward Liquid Metals?

2020

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The liquid metal lyophobicity of a rough substrate was, in previous articles, found to be rather independent on the surface wettability. In this article, we scrutinize the impact of surface wettability of a structured (rough) surface on the liquid metal wettability and adhesion. As a model system, a structured diamond coating was synthesized and modified by air plasma. We show that surface wettability (surface free energy) does not play a prominent role for static contact angle measurements and for the liquid metal repelling properties of the diamond coating in droplet impact experiments. In contrast, roll off angles and repeated deposition experiments illustrate that the increased hydrophilicity impacts the long-term liquid metal repellency of our coating. Liquid metal adhered after around 50 deposition/removal cycles on the hydrophilic diamond coating, while no liquid metal adhesion was visible after 100 cycles on the hydrophobic diamond coating, illustrating the fundamental role for the adhesion of liquid metal. The effect of repeated deposition in conjunction with gentle applied force was employed for coating the liquid metal lyophobic (hydrophilic) diamond coating with a thin liquid metal layer. The observed effect may find application in flexible electronics and thermal management systems as a means to improve interfacing of the liquid metal with conductive non-metal coatings.

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Section: Application Of the Liquid Metal Adhesion To The Hydrophilic Diamond Coatingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Is There a Relationship between Surface Wettability of Structured Surfaces and Lyophobicity toward Liquid Metals?

2020

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“…chemical stability, and so on. [1][2][3][4][5][6][7] The great potential of this material was already discovered early, [8,9] and gave rise to significant scientific and economic import. The demand of diamond for many of the early applications was satisfied by natural diamond and the diamond synthesized by the high pressure, high temperature (HPHT) process.…”

Section: Introductionmentioning

confidence: 99%

“…Diamond, the famous gemstone, is an intriguing material for copious applications and fundamental studies due to its extraordinary properties, such as highest hardness, extreme wear resistance, low friction coefficient, high thermal conductivity, chemical stability, and so on. [ 1–7 ] The great potential of this material was already discovered early, [ 8,9 ] and gave rise to significant scientific and economic import. The demand of diamond for many of the early applications was satisfied by natural diamond and the diamond synthesized by the high pressure, high temperature (HPHT) process.…”

Section: Introductionmentioning

confidence: 99%

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Ultrathin Diamond Nanofilms—Development, Challenges, and Applications

Handschuh‐Wang

Wang

Tang

2021

Small

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Diamond is a highly attractive material for ample applications in material science, engineering, chemistry, and biology because of its favorable properties. The advent of conductive diamond coatings and the steady demand for miniaturization in a plethora of economic and scientific fields resulted in the impetus for interdisciplinary research to develop intricate deposition techniques for thin (≤1000 nm) and ultra‐thin (≤100 nm) diamond films on non‐diamond substrates. By virtue of the lowered thickness, diamond coatings feature high optical transparency in UV–IR range. Combined with their semi‐conductivity and mechanical robustness, they are promising candidates for solar cells, optical devices, transparent electrodes, and photochemical applications. In this review, the difficulty of (ultra‐thin) diamond film development and production, introduction of important stepping stones for thin diamond synthesis, and summarization of the main nucleation procedures for diamond film synthesis are elucidated. Thereafter, applications of thin diamond coatings are highlighted with a focus on applications relying on ultrathin diamond coatings, and the excellent properties of the diamond exploited in said applications are discussed, thus guiding the reader and enabling the reader to quickly get acquainted with the research field of ultrathin diamond coatings.

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Diamond Nanostructures at Different Dimensions: Synthesis and Applications

Li,

Yang,

Jiang

et al. 2024

Adv Funct Materials

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Diamond materials at different nanoscales provide them various characteristics such as elastic mechanical properties in needle‐like nanotips, flexibility of 2D films having atomic thicknesses and constant hardness under high pressures, superior field electron emission properties of vertically wall‐like composites, unprecedented hardness and improved toughness of nanotwin diamond (nt‐diamond), while the inherent excellent properties of bulk diamond (e.g., high Young's modulus, robustness, biocompatibility) can be maintained. In this paper, the newly born 1D diamond nanothreads, 2D diamanes, as well as 3D nt‐diamond are briefly reviewed. The innovations, progresses and achievements of different dimensional diamond nanostructures, covering lines, planes and volumes are overviewed. The topical problems and future outlooks of diamond nanostructures are outlined and discussed.

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Adherent and low friction nanocrystalline diamond films via adsorbing organic molecules in self-assembly seeding process

Cited by 18 publications

References 41 publications

Is There a Relationship between Surface Wettability of Structured Surfaces and Lyophobicity toward Liquid Metals?

Is There a Relationship between Surface Wettability of Structured Surfaces and Lyophobicity toward Liquid Metals?

Ultrathin Diamond Nanofilms—Development, Challenges, and Applications

Diamond Nanostructures at Different Dimensions: Synthesis and Applications

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