Temperature-dependence of cathodoluminescence of zinc oxide monolayers obtained by atomic layer deposition

• Autorzy: Witkowski B. S. , Wachnicki L. , Nowakowski P. , Suchocki A. , Godlewski M.
• Języki publikacji: EN

Abstrakty

EN

We performed cathodoluminescence (CL) investigations of zinc oxide monolayers obtained by atomic layer deposition. Layers of different thickness were deposited on commercial GaN/sapphire templates. Scanning electron microscopy (SEM) system equipped with CL allows direct comparison of SEM images and CL maps, taken from exactly the same areas of samples. In addition to SEM and CL images, CL profiling was performed by collecting the CL spectra at different accelerating voltages. The CL profiling allows to distinguish the emissions from a surface and volume of samples. An inter-link between samples microstructure and emission properties is investigated. Shifts of emission bands, associated by us with the localization effects, are observed. CL investigations are supported by photoluminescence (PL) measurements, which are characterized by a higher spectral resolution. PL investigations allow determination of the origin of emission bands.

Słowa kluczowe

EN

zinc oxide; cathodoluminescence; profiling; temperature-dependence; localization

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2013
• Tom: Vol. 43, nr 1
• Strony: 187--194
• Opis fizyczny: Bibliogr. 15 poz., rys. wykr.

Twórcy

autor

Witkowski B. S.

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

autor

Wachnicki L.

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

autor

Nowakowski P.

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

autor

Suchocki A.

• Institute of Physics, Kazimierz Wielki University, Weyssenhoffa 11, 85-072 Bydgoszcz, Poland

autor

Godlewski M.

• Department of Mathematics and Natural Sciences College of Science, Cardinal S. Wyszyński University, Dewajtis 5, 01-815 Warsaw, Poland

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