Figure 6.

Excitonic photoluminescence spectra at T = 10 K of ZnO nanorod layers deposited at different spray rates. The layers are deposited from aqueous solutions onto ITO/SGL substrates at 550°C with spray rate of 1.2, 2.2, and 6.2 ml/min, illustrated by spectrum A, B, and C, respectively. Spectrum A is shown with fitting results. The inset in the Figure 6 shows spectrum A in logarithmic scale.

Kärber et al. Nanoscale Research Letters 2011 6:359   doi:10.1186/1556-276X-6-359
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