Superior attachment of high‐quality hydrogen‐free amorphous diamond films to solid materials

Abstract

Communications in the electrical characteristic as a lowering of the onset for current injection in the double-layer device, as shown in Figure 3. This reduced barrier height also has important implications as regards device efficiency. Hole injection is enhanced in the double-layer LED due to the lower barrier height, which concomitantly perturbs the balance of double-charge injection. As noted in the caption of Figure 3, this is consistent with the observed substantial decrease in the efficiency of the double-layer device.In conclusion, in this work we elucidated the source of electroluminescence from a single-layer blue organic LED based on the carbazole dimer (Cz-eth~l)~. Confined intradimer luminescence excitations and a balanced doublecharge injection resulted in a device with good luminance and modest external quantum efficiencies that will potentially have an impact on applications where blue LEDs are required. Received[l] a) For our plasma-beam-deposited films we use the short and illustrative term amorphous diamond, a-D, instead of tetrahedral amorphous carbon, ta-C, referring to only one possible structure of amorphous carbon with a high sp3-fraction. This type of coating has been produced with mass-selected ion beams, filtered cathodic vacuum arc, and by the laser ablation of graphite. DL.C is a common term for coatings Adv Mater 1997, 9, No. 15

Anin vitro investigation of diamond-like carbon as a femoral head coating

“…As stated above, the techniques used to deposit DLC may be divided into two classes depending on the source of carbon atoms: chemical vapor deposition (CVD) and ion beam based (IBB). 19 The carbon is derived from a carbonaceous gas such as methane. Normally carbon deposited from such a gas forms as a graphitic structure, but if the deposition process is assisted by a radiofrequency-generated plasma, the graphitic structure is suppressed and a DLC film is formed.…”

“…DLC coatings can be deposited using various techniques, usually plasma assisted, that can be divided into two classes depending on the source of carbon atoms: chemical vapor deposition (CVD) and ion beam based (IBB). 18,19 Initially, poor adhesion to the substrates was one of the most serious drawbacks of DLC. 19,20 Recent developments have substantially eliminated these constraints and most surfaces can now be treated efficiently.…”

“…18,19 Initially, poor adhesion to the substrates was one of the most serious drawbacks of DLC. 19,20 Recent developments have substantially eliminated these constraints and most surfaces can now be treated efficiently. Improvements in the quality of chemical vapor-deposited diamond components have opened up new possibilities for their use in a diverse range of applications.…”

Tailoring microstructure and phase segregation for low friction carbon-based nanocomposite coatings

“…[1][2][3][4][5][6][7][8][9][10] However, their limitations are low toughness and high internal stress levels. [11][12][13] Thus, the design and development of high hardness, high wear resistance, low friction, good toughness and low internal stress level coatings, which will result in a significant increase in the lifetime of mechanical components, are of most importance in fundamental research and industrial applications.…”

Tribological properties of platinum/ruthenium/nitrogen doped diamond-like carbon thin films deposited with different negative substrate biases

“…The higher adhesion strength of DLC films can give rise to the better antiwear performance of the films without any significant adhesive failure in service. An introduction of an interlayer prior to DLC film deposition is a possible way to relax residual stress in the film [9]. Doping of metals, such as nickel (Ni), aluminum (Al) and so on, in DLC films promotes the adhesion strength of the films by relaxing the residual stress in the films with increased sp 2 bonding in the films [10][11][12][13].…”