TY - JOUR
T1 - Time-resolved luminescence spectra of electron-hole plasma in ion-irradiated CdS
AU - Koshimizu, M.
AU - Asai, K.
AU - Kimura, K.
N1 - Funding Information:
This work was supported by a Grant-in-Aid from the Ministry of Education, Culture, Sports, Science and Technology. One of the authors (M.K.) also acknowledges the support from the Research Fellowships of the Japan Society for the Promotion of Science for Young Scientists.
PY - 2003/12
Y1 - 2003/12
N2 - 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.
AB - 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.
KW - CdS
KW - Electron-hole plasma
KW - Swift heavy ion
KW - Time-resolved luminescence
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U2 - 10.1016/S0168-583X(03)01509-X
DO - 10.1016/S0168-583X(03)01509-X
M3 - Conference article
AN - SCOPUS:0242300768
VL - 212
SP - 376
EP - 380
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
SN - 0168-583X
IS - 1-4
T2 - Atomic Collisions in Solids
Y2 - 19 January 2003 through 24 January 2003
ER -