Latent track effects of swift argon ions in polyimide
文献类型：会议论文
| 作者 | Li, CL; Sun, YM; Jin, YF; Liu, G; Hou, MD; Ma, F; Patnaik, A |
| 出版日期 | 1998-02 |
| 关键词 | heavy ion irradiation polyimide latent track electronic energy loss |
| 卷号 | 135 |
| 期号 | 1-4 |
| 页码 | 234-238 |
| 英文摘要 | A stack of polyimide (PI) thin foils was irradiated with 900 (MeVAr15+)-Ar-40 ions up to a fluence of 8 x 10(11) ions/cm(2). Subsequently, the electrical conductivity and UV-VIS absorption spectra of specimens were measured for the selected foils from the irradiated stack. Two well defined characteristic absorption peaks at wavelengths 482 and 501 nm appeared after irradiation and their absorption peak intensities progressively increased with increasing electronic energy loss in the substrate. Over a range of deposited electronic energy density from 8 to 23 eV/nm(3), the depth profile of the chemical yields closely pursued the electronic energy transfer profile. The integrated optical absorption bands at 482 and 501 nm were used to evaluate the normalized damage fraction, the damage production cross-section and the track radii in the irradiated PI matrix as a function of deposited electronic energy density. The measured enhanced electrical conductivity substantiated by the optical band gap values was attributed to the formation of condensed polycyclic aromatic ring compounds and clusters with greater degree of conjugation in the multiple overlapping ion track in the PI matrix. The critical energy loss rate (track etch threshold) for Ar-40 ion in PI was obtained from the optical absorbance and electrical conductivity measurements. (C) 1998 Elsevier Science B.V. |
| 会议录 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
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| 会议录出版者 | ELSEVIER SCIENCE BV |
| 会议录出版地 | PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| 语种 | 英语 |
| WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
| WOS记录号 | WOS:000074395300042 |
| 源URL | [http://119.78.100.186/handle/113462/57689]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Li, CL |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Indian Inst Technol, Dept Chem, Madras 600036, Tamil Nadu, India |
| 推荐引用方式 GB/T 7714 | Li, CL,Sun, YM,Jin, YF,et al. Latent track effects of swift argon ions in polyimide[C]. 见:. |
入库方式： OAI收割
来源：近代物理研究所
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