2024-10-212024-10-21https://repoemc.ukm.my/handle/123456789/15594Hydrogen and helium dilutionHydrogenated amonphous carbonOptical band gapPhotoluminescenceEffects of Hydrogen and Helium Dilution on the Optical Band Gap andPhotoluminescence of DC PECVD Hydrogenated Amorphous Carbon FilmsJournal Article