Exoelectronic emission properties and energy-band parameters of zirconium oxide films

Кортов, В. С.; Gaprindashvili, A. I.; Saenko, G. P.

doi:10.1007/bf01117270

Cited by 1 publication

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“…In all experiments reported in the literature, where the role is investigated of the electron affinity of the solid in the phenomenon of EEE, and in particular where the simultaneous observation of TL and EEE was used for the measurement of electron affinity [6,[26][27][28][29][30][31][32], the exact value of the latter was, as a rule, unknown. In those experiments where the difference in the activation energies of the two phenomena was attributed to the electron affinity of the material, this difference was compared with values measured in other experimental works, performed, as a rule, under different conditions.…”

Section: Introductionmentioning

confidence: 99%

Thermoluminescence, exoelectron emission and electron affinity of a KCl thin film

Peoglos¹,

Christodoulides²

2001

J. Phys. D: Appl. Phys.

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The applicability of the thermionic model for exoelectron emission was examined on a thin film (0.1 µm) of KCl by measuring the activation energies for exoelectron emission (0.73±0.02 eV) and thermoluminescence (0.64±0.02 eV) and the electron affinity (0.70±0.08 eV) of the solid. The electron affinity was measured through the study of the energy distribution of the secondary electrons. The exoelectron emission was found to be strongly correlated with thermoluminescence. In the temperature interval of -60 to 120 °C, in which the peaks in both phenomena were exhibited, no variation of the value of the electron affinity was observed, while its coefficient of temperature variation was found to be less than 7×10-4 eV K-1. The irradiation of the film with 600 eV electrons did not affect the electron affinity, even at the level of 2.5×1013 electrons cm-2, a fluence (total number of particles per unit area) which was found to cause fatigue of the material as far as the two phenomena were concerned.

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