Diamond-Like Carbon film from Liquid Gas on Metallic Substrates

TL;DR

This paper reports the synthesis of diamond-like carbon (DLC) films on metallic substrates using a liquid gas and DC plasma technique, with characterization revealing new spectral features and exciton absorption at room temperature.

Contribution

It introduces a novel method of producing DLC films from liquid gas on metals and provides detailed spectral analysis including new lines and exciton absorption.

Findings

DLC films confirmed by IR reflectance

New spectral lines observed in UV-visible spectra

Exciton absorption detected at room temperature

Abstract

Liquid gas was used to produce DLC films on Cu, Al and steel substrates by DC plasma technique. The absorption in IR reflectance indicates, grown films are DLC. By deconvolution of room temperature UV-visible spectra of the films grown at 50 mtorr and 200${}^\circ$C, in addition to the spectra lines reported for CL, PL, PLC and ESR, some new spectra lines were obtained. We also, have seen exciton absorption line at room temperature.