We describe the photoemission of lanthanum-doped lead zirconate titanate when illuminated with 355 nm radiation, with/without prepoling and with/without the application of a polarizing field. To explain the different behaviors observed, we propose a physical picture based on the defects moving toward the surface and the donor electrons squeezing into a very thin layer at the surface. The model and the experimental results indicate that ferroelectric ceramics could become interesting photoemitters.
Effects of prepoling and polarization on photoemission from ferroelectric ceramics / I. Boscolo, S. Cialdi, F. Tazzioli, L. Catani, L. Giannessi. - In: JOURNAL OF APPLIED PHYSICS. - ISSN 0021-8979. - 89:2(2001 Jan 15), pp. 1367-1370.
Effects of prepoling and polarization on photoemission from ferroelectric ceramics
I. BoscoloPrimo
;S. CialdiSecondo
;
2001
Abstract
We describe the photoemission of lanthanum-doped lead zirconate titanate when illuminated with 355 nm radiation, with/without prepoling and with/without the application of a polarizing field. To explain the different behaviors observed, we propose a physical picture based on the defects moving toward the surface and the donor electrons squeezing into a very thin layer at the surface. The model and the experimental results indicate that ferroelectric ceramics could become interesting photoemitters.Pubblicazioni consigliate
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