Enhancement in electron field emission in ultrananocrystalline and microcrystalline diamond films upon 100 MeV silver ion irradiation
學年 97
學期 2
出版(發表)日期 2009-04-01
作品名稱 Enhancement in electron field emission in ultrananocrystalline and microcrystalline diamond films upon 100 MeV silver ion irradiation
作品名稱(其他語言)
著者 Chen, Huang-Chin; Palnitkar, Umesh; Pong, Way-Faung; Lin, I-Nan; Singh, Abhinav Pratap; Kumar, Ravi
單位 淡江大學物理學系
出版者 College Park: American Institute of Physics
著錄名稱、卷期、頁數 Journal of Applied Physics 105(8), 083707(7pages)
摘要 Enhanced electron field emission (EFE) behavior was observed in ultrananocrystalline diamond (UNCD) and microcrystalline diamond (MCD) films upon irradiation with 100 MeV Ag9+-ions in a fluence of 5×1011 ions/cm2. Transmission electron microscopy indicated that while the overall crystallinity of these films remained essentially unaffected, the local microstructure of the materials was tremendously altered due to heavy ion irradiation, which implied that the melting and recrystallization process have occurred along the trajectory of the heavy ions. Such a process induced the formation of interconnected nanocluster networks, facilitating the electron conduction and enhancing the EFE properties for the materials. The enhancement in the EFE is more prominent for MCD films than that for UNCD films, reaching a low turn-on field of E0 = 3.2 V/μm and large EFE current density of Je = 3.04 mA/cm2 for 5×1011 ions/cm2 heavy ion irradiated samples.
關鍵字
語言 en
ISSN 0021-8979 1089-7550
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Lin, I-Nan
審稿制度
國別 USA
公開徵稿
出版型式 紙本 電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/72636 )

機構典藏連結