Electron emission signifies an important mechanism facilitating the enlargement of devices that have modernized large parts of science and technology. Today, the search for innovative electron emission devices for imaging, sensing, electronics, and high-energy physics continues. Integrating two materials with dissimilar electronic properties into a hybrid material is an extremely sought-after synergistic approach envisioning a superior field electron emission (FEE) material. An innovation is described regarding the fabrication of a nanostructured carbon hybrid resulting from the one-step growth of boron doped nanocrystalline diamond (BNCD) and carbon nanospikes (CNSs) by a microwave plasma enhanced chemical vapor deposition technique. Spectroscopic and microscopic tools are used to investigate the morphological, bonding, and microstructural characteristics related to the growth mechanism of these hybrids. Utilizing the benefits of both the sharp edges of the CNSs and the high stability of BNCD, a promising FEE performance with a lower turn-on field of 1.3 V um-1, a higher field enhancement factor of 6780, and a stable FEE current stability lasting for 780 min is obtained. The microplasma devices utilizing these hybrids as a cathode illustrate a superior plasma illumination behavior. Such hybrid carbon nanostructures, with superb electron emission characteristics, can encourage the enlargement of several electron emission device technologies.
Authors
- Sankaran Kamatchi,
- dr inż. Mateusz Ficek link open in new tab ,
- Panda Kalpataru,
- Chien-Jui Yeh,
- dr hab. inż. Sawczak Mirosław,
- dr hab. inż. Jacek Ryl link open in new tab ,
- Keh-Chyang Leou,
- Jeong Young Park,
- prof. I-Nan Lin,
- dr hab. inż. Robert Bogdanowicz link open in new tab ,
- Ken Haenen
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1021/acsami.9b17942
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach
- Language
- angielski
- Publication year
- 2019
