논문 해외 국제전문학술지(SCI급) Growth Properties of Carbon Nanowalls on Nickel and Titanium Interlayers
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2022-01
- 저자명 May Tran Thi, Seokhun Kwon, Hyunil Kang, Jung-Hyun Kim, Yong-Kyu Yoon, Wonseok Choi
- 학술지명 Molecules
- 발행국가 해외
- 논문언어 외국어
- 원문 링크 10.3390/molecules27020406
홈페이지논문 초록 (Abstract)
This research is conducted in order to investigate the structural and electrical characteristics of carbon nanowalls (CNWs) according to the sputtering time of interlayers. The thin films were deposited through RF magnetron sputtering with a 4-inch target (Ni and Ti) on the glass substrates, and the growth times of the deposition were 5, 10, and 30 min. Then, a microwave plasma-enhanced chemical vapor deposition (PECVD) system was used to grow CNWs on the interlayer-coated glass substrates by using a mixture of H2 and CH4 gases. The FE-SEM analysis of the cross-sectional and planar images confirmed that the thickness of interlayers linearly increased according to the deposition time. Furthermore, CNWs grown on the Ni interlayer were taller and denser than those grown on the Ti interlayer. Hall measurement applied to measure sheet resistance and conductivity confirmed that the electrical efficiency improved significantly as the Ni or Ti interlayers were used. Additionally, UV-Vis spectroscopy was also used to analyze the variations in light transmittance; CNWs synthesized on Ni-coated glass have lower average transmittance than those synthesized on Ti-coated glass. Based on this experiment, it was found that the direct growth of CNW was possible on the metal layer and the CNWs synthesized on Ni interlayers showed outstanding structural and electrical characterizations than the remaining interlayer type.