当前位置: X-MOL 学术Opt. Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Bulk and surface processes in KBr single crystals examined by thermostimulated luminescence and exo-electron emission
Optical Materials ( IF 3.9 ) Pub Date : 2021-05-25 , DOI: 10.1016/j.optmat.2021.111191
P. Pokorny , M. Novotny , J. Fara , Y. Dekhtyar , A. Lushchik , R. Jaaniso , P. Fitl , J. Lancok

This article belongs to a three-part series dedicated to the simultaneous measurements of thermally stimulated exo-electron emission (TSEE), desorption (TSD) and luminescence (TSL). These works aim is to verify the ability of the applied experimental setup to characterize and analyze at the same time all the three above-mentioned stimulated processes. In agreement with the two preceding publications that deal TSD and TSEE, this article proves the consistency of the results of the individual modes of joint measurements of TSL and TSEE (as well as bulk and surface, the corresponding sources of emission, the recombination processes and their interactions). The whole experimental apparatus was tested using a well-known material, high-purity monocrystalline KBr, in the temperature range ΔT = −196 °C–430 °C (ΔT = 77 K–703 K) and in the chamber with base pressure p < 1 × 10−6 Pa to obtain a better comparison of results. Our in-house developed software for decomposing of the measured curves into the individual components and the subsequent calculation of the corresponding activation energies and frequency factors clearly confirms these results.



中文翻译:

通过热激发发光和外电子发射检查KBr单晶的本体和表面过程

本文属于三部分系列,致力于同时测量热激发外电子发射(TSEE),解吸(TSD)和发光(TSL)。这些工作的目的是验证所应用的实验装置能够同时表征和分析所有上述三个受激过程的能力。与之前涉及TSD和TSEE的两个出版物一致,本文证明了TSL和TSEE联合测量的各个模式(以及体积和表面,相应的排放源,重组过程和他们的互动)。整个实验设备均使用知名材料高纯度单晶KBr在ΔT  = −196°C–430°C(ΔT  = 77 K–703 K),并且在腔室内,基本压力p <1×10 -6  Pa,以获得更好的结果比较。我们内部开发的软件可将测得的曲线分解为各个分量,随后对相应的活化能和频率因子进行计算,可以清楚地证实这些结果。

更新日期:2021-05-25
down
wechat
bug