https://scholars.lib.ntu.edu.tw/handle/123456789/616439
標題: | Nano-carbon nitride synthesis from a bio-molecular target for ion beam sputtering at low temperature | 作者: | Wu J.-J. Wu C.-T. Wang T.-Y. Chen L.-C. LI-CHYONG CHEN |
關鍵字: | Bio-material;C3N4;Sputtering | 公開日期: | 1999 | 卷: | 8 | 期: | 2-5 | 起(迄)頁: | 605-609 | 來源出版物: | Diamond and Related Materials | 摘要: | Nano-crystalline carbon nitride has been successfully synthesized at a temperature below 100 °C from an adenine(C5N5H5) target sputtered by an Ar ion beam. Because adenine possesses a ring structure similar to the hypothetical β-C3N4 phase, the use of this bio-molecular compound as the target is believed to reduce the energy barrier of carbon-nitride growth. The effect of Ar ion-sputtering voltage on the film growth and the effect of extra-N-atom incorporation on the carbon-nitride film growth are examined in this study. Only a carbon film is formed with an ion energy of 500 V. For the ion-beam energy above 750 V, carbon nitride films are deposited, and there is some hydrogen incorporation in the films. The N/C composition ratio in the films could reach 1:1 and is independent on the ion beam voltage. The nitrogen is bonded with carbon within the films, as determined by the IR and XPS measurements. However, the films deposited at a higher ion voltage could possess some original functional groups of adenine. A strong and broad peak at a d-spacing of 0.32 nm, comparable to the calculated d-spacing of the β-C3N4(110), is observed in the XRD spectra of the carbon nitride films. The TEM results indicated that the film contained nano-crystalline grains. Several d values are also in good agreement with those of adenine and the calculated values of β-C3N4. The C/N ratios of the films are still kept at almost 1:1 with N atoms added during deposition. The XRD spectra and IR spectra of these films are all similar to the film deposited without nitrogen source. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032615479&doi=10.1016%2fs0925-9635%2898%2900283-0&partnerID=40&md5=fde26c3f9e5b0ffeba8df54a53c98355 https://scholars.lib.ntu.edu.tw/handle/123456789/616439 |
ISSN: | 09259635 | DOI: | 10.1016/s0925-9635(98)00283-0 | SDG/關鍵字: | Biomaterials;Chemical bonds;Crystal atomic structure;Film growth;Infrared spectroscopy;Ion beams;Molecular structure;Nanostructured materials;Sputtering;Synthesis (chemical);X ray crystallography;X ray photoelectron spectroscopy;Carbon nitride;Ion beam sputtering;Nitrides |
顯示於: | 凝態科學研究中心 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。