Tổng hợp các màng mỏng graphene đa lớp trên tấm băng đồng bằng phương pháp lắng bay hơi hóa học dưới áp suất khí quyển

• Ngôn ngữ: vie
• Ký hiệu phân loại: 523 Specific celestial bodies and phenomena
• Thông tin xuất bản: Advances in Natural Scienses: Nanoscience and nanotechnology, 2013
• Mô tả vật lý: 45296
• Bộ sưu tập: Metadata
• ID: 565054

Tóm tắt

Graphene films were successfully synthesized by atmospheric pressure chemical vapor deposition (APCVD) method. Methane (CH4) gas and copper (Cu) tapes were used as a carbon source and a catalyst, respectively. The CVD temperature and time were in the range of 800-1000°C and 10s to 45 min, respectively. The role of the CVD temperature and time on the growth of graphene films was investigated in detail via scanning electron microscopy (SEM) and Raman spectroscopy techniques. The results of SEM images and Raman spectra show that the quality of the graphene films was improved with increasing of CVD temperature due to the increase of catalytic activity.