English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this article, the optical density (D opt ) and the skin depth (δ) of films were estimated and discussed. The skin depth of NiCu-a-C: H films contenting 0% Cu in the optical band gap range was higher than other films and the maximum value is about 190 nm. Also, optical energy gap, Urbach energy, or the band tail width and Urbach parameters are calculated for thin films. By increasing the Cu percentage of films up to 5% the optical density of films was increased and then from 5% to 75% the optical density of films was decreased. The energy band gap and the width of the Urbach tail can be presented by linear relation E g  = 2.6 − 1.48 E u . To observe the broadening of the optical absorption edge due to carrier interactions, the steepness parameter (σ) was evaluated; films deposited with 5% Cu have maximum value of the steepness parameter in about of 4.08. Electron-phonon interaction in films deposited with 5% Cu has minimum value in about of 16.4. Films deposited with 75% Cu have minimum values of the dispersion energy (E d ) and the single-oscillator energy (  E0 ) in about of 17.83 and 3.46 eV, respectively. With considering N c  = 8, Z a  = 1, N e  = 8 for these films, the coordination number constants β were calculated and for films deposited with Ni pure (0% Cu) it has maximum value in about of 0.36.

MWNTs on NiCu-a-C: H substrates: Study of optical linear equations, optical density, steepness and electron-phonon interaction