Abstract
We measured the time-resolved luminescence spectra of CdS induced by 2.0 MeV/nucleon Xe and Ar irradiation. We observed a luminescence band with a fast decay rate, and attributed it to the spontaneous luminescence of the electron-hole plasma (EHP). By analyzing the shape of this band, we obtained the carrier density and temperature of the EHP. The obtained carrier density was quite consistent with the calculated result of the excitation density or electronic stopping power. The small binding energy of the EHP, obtained in this experiment, indicates that the crystal structure does not significantly change in the ion tracks due to the weak interaction of the electrons and lattice in CdS, contrary to the case of alumina and alkali-halides.
| Original language | English |
|---|---|
| Pages (from-to) | 376-380 |
| Number of pages | 5 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms |
| Volume | 212 |
| Issue number | 1-4 |
| DOIs | |
| Publication status | Published - 2003 Dec 1 |
| Externally published | Yes |
| Event | Atomic Collisions in Solids - India, India Duration: 2003 Jan 19 → 2003 Jan 24 |
Keywords
- CdS
- Electron-hole plasma
- Swift heavy ion
- Time-resolved luminescence
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Instrumentation