Autor: Przegiętka, K. R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Trap Spectra of Annealed Quartz
Autorzy:: Chruścińska, A.
Oczkowski, H. L.
Przegiętka, K. R.
Powiązania:: https://bibliotekanauki.pl/articles/1945395.pdf
Data publikacji:: 1996-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.60.Kn
Opis:: The trap energy density spectra of natural quartz were investigated by the fractional glow technique. The thermal treatment before excitation induces the changes of thermoluminescence sensitivity as well as the changes of trap spectrum. After annealing at temperature higher than 400°C, a new kind of trap is observed. The frequency factor was determinated by the fitting of the theoretical glow curve calculated using the trap depth measured by fractional glow technique to experimental one.
Źródło:: Acta Physica Polonica A; 1996, 89, 4; 555-568
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Charge Traps in Ce-Doped CaF$\text{}_{2}$ and BaF$\text{}_{2}$
Autorzy:: Drozdowski, W.
Przegiętka, K. R.
Wojtowicz, A. J.
Oczkowski, H. L.
Powiązania:: https://bibliotekanauki.pl/articles/1994795.pdf
Data publikacji:: 1999-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.60.Kn
73.50.Gr
29.40.Mc
Opis:: Thermoluminescence of CaF$\text{}_{2}$:Ce, BaF$\text{}_{2}$, and BaF$\text{}_{2}$:Ce irradiated at room temperature is reported. X-ray induced emission spectra of the samples show that both excitonic (due to e$\text{}^{-}$+V$\text{}_{K}$ recombination) and Ce$\text{}^{3+}$ d-f luminescence may contribute to thermoluminescence signal. The simple Randall-Wilkins model is used to deconvolute glow curves into seven to eight first-order peaks. Parameters of all traps are calculated and correlations between peaks in the curves of the examined materials are discussed.
Źródło:: Acta Physica Polonica A; 1999, 95, 2; 251-258
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Luminescence from β-Irradiated Graphene Layers
Autorzy:: Chruścińska, A.
Przegiętka, K. R.
Szroeder, P.
Oczkowski, H. L.
Rozpłoch, F.
Powiązania:: https://bibliotekanauki.pl/articles/2046889.pdf
Data publikacji:: 2006-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 77.60.Kn
78.60.-b
78.67.Ch
81.05.Uw
Opis:: We found that β-irradiated samples of crystallite graphite and multi-walled carbon nanotubes emit light during heating above room temperature. This behaviour is rather surprising for semimetals. Due to the lack of deep enough energy gap, this optical emission cannot be associated with interband transitions, as it is usually assumed in a thermally stimulated luminescence model. We suppose that the reported accumulated luminescence is the result of thermally stimulated relaxation of some kind of defects created in graphene structures by ionising radiation and therefore we offer to name it the relaxoluminescence. We anticipate the relaxoluminescence to be a starting point for developing a new spectroscopic method for nanotechnology. It can also throw a new light on the nature of defects, which are suspected of being responsible for strange magnetic effects in carbon.
Źródło:: Acta Physica Polonica A; 2006, 110, 1; 71-80
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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