Photoluminescence of chemical bath deposited ZnO:Al films treated by rapid thermal annealing
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SHISHIYANU, Sergiu; LUPAN, Oleg; MONAICO, Eduard; URSAKI, Veacheslav; SHISHIYANU, Teodor; TIGHINEANU, Ion. Photoluminescence of chemical bath deposited ZnO:Al films treated by rapid thermal annealing. In: Thin Solid Films. 2005, nr. 1-2(488), pp. 15-19. ISSN -.
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Thin Solid Films
Numărul 1-2(488) / 2005 / ISSN - /ISSNe 0040-6090

Photoluminescence of chemical bath deposited ZnO:Al films treated by rapid thermal annealing


DOI: 10.1016/j.tsf.2005.04.004
Pag. 15-19

Shishiyanu Sergiu1, Lupan Oleg1, Monaico Eduard1, Ursaki Veacheslav2, Shishiyanu Teodor1, Tighineanu Ion12
 
1 Technical University of Moldova,
2 Institute of Applied Physics, Academy of Sciences of Moldova
 
Disponibil în IBN: 12 aprilie 2018


Rezumat

Aluminum-doped zinc oxide (ZnO:Al) films fabricated by chemical bath deposition are characterized using scanning electron microscopy and photoluminescence (PL) spectroscopy. The impact of rapid thermal annealing (RTA) upon the morphology and luminescence characteristics of ZnO:Al layers is studied in an annealing temperature interval up to 650 °C. The as deposited films consist of high quality microcrystalline grains surrounded by a material of poor quality. RTA at temperatures around 650°C proves to increase the grain size, enhance the ultraviolet PL with simultaneous suppression of the visible luminescence, and activate the Al donor impurities.

Cuvinte-cheie
Luminescence, surface morphology, zinc oxide,

Rapid thermal annealing