{"title":"Synthesis of amorphous carbon (a-C) thin films from the iodomethane chemical route by PE-CVD method for optoelectronic devices","authors":"Shochin Chandra Das , Jaker Hossain , Md. Mahbubor Rahman , Mamunur Rashid Talukder","doi":"10.1016/j.diamond.2025.112173","DOIUrl":null,"url":null,"abstract":"<div><div>Amorphous carbon (a-C:I) thin films have been developed on glass substrates by a simplistic PE-CVD method. The films have been synthesized from CH<sub>3</sub>I solution with iodine added at a concentration of 0.5 mg/mL. XRD study elicits the amorphous nature of the films. SEM images reveal that the films are disk-like and rough. EDS data ensures that the thin films mainly composed of carbon and iodine. The FTIR spectra reveal the stretching vibration of C<img>I bond. Transmittance of the films initially increases with time and then stabilized. The bandgap of the synthesized a-C:I thin films have been calculated to be in the range of ∼2.12 to 2.45 eV. The findings are promising for the applications of a-C:I films in optoelectronic devices.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"154 ","pages":"Article 112173"},"PeriodicalIF":4.3000,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Diamond and Related Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0925963525002304","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
引用次数: 0
Abstract
Amorphous carbon (a-C:I) thin films have been developed on glass substrates by a simplistic PE-CVD method. The films have been synthesized from CH3I solution with iodine added at a concentration of 0.5 mg/mL. XRD study elicits the amorphous nature of the films. SEM images reveal that the films are disk-like and rough. EDS data ensures that the thin films mainly composed of carbon and iodine. The FTIR spectra reveal the stretching vibration of CI bond. Transmittance of the films initially increases with time and then stabilized. The bandgap of the synthesized a-C:I thin films have been calculated to be in the range of ∼2.12 to 2.45 eV. The findings are promising for the applications of a-C:I films in optoelectronic devices.
期刊介绍：
DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices.
The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.
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