Vertically oriented graphene nano-sheets grown by plasma enhanced chemical vapor deposition technique at low temperature

BAYRAM Ö., ŞİMŞEK Ö.

CERAMICS INTERNATIONAL, cilt.45, sa.11, ss.13664-13670, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45 Sayı: 11
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.ceramint.2019.04.034
  • Dergi Adı: CERAMICS INTERNATIONAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.13664-13670
  • Anahtar Kelimeler: Vertically-oriented graphene, Raman, PECVD, LARGE-AREA, RAMAN-SPECTROSCOPY, HIGH-QUALITY, VERSATILE, FILMS, CHAINS, CVD
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this study, it was aimed to obtain vertically-oriented graphene nano-sheets (VGNs) on copper foils using CH4 gas as the precursor material by means of plasma enhanced chemical vapor deposition (PECVD) technique. VGNs were obtained at 50 W, 75 W and 100 W Radio Frequency (RF) powers by this technique and the effect of RF power on the morphological structure of graphene layers was investigated. VGNs were also analyzed by Raman spectroscopy, scanning electron microscopy (SEM) and water contact angle (WCA) measurements. The SEM images showed that the VGNs became more tightly packed with the increase of RF power and thus these coating parameters had a significant effect on the morphological structure. WCA analyzes for VGNs were also performed and it was found that VGNs obtained at 100 W RF power had higher contact angle value than the other RF powers. These VGNs, which have both large surface area and optically transparent, are thought to be materials that have the potential to be used in supercapacitors and solar cells.