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. 2004 Jan 2;101(2):429–433. doi: 10.1073/pnas.0304179101

Fig. 3.

Fig. 3.

Normalized and unnormalized (Insets) PL spectra. (a) PL spectra of 10-nm MEH-PPV films with evaporated Au coatings on half. In the main part of the graphs, the spectra were normalized to the maximum intensities of the PL from the bare regions of the MEH-PPV film (without Au), which were identical for both samples. (b) PL spectra of 10-nm MEH-PPV films with Au coatings formed by ScL on half of it. The films were excited at a wavelength of 420 nm in the uncoated and Au-coated regions by using the same excitation/detection geometry. The data taken from the bare MEH-PPV region are shown in red, and those taken from the Au-coated region are shown in black. The PL from the evaporated Au region is lower in intensity and blue-shifted compared to the regions that do not have Au. In contrast, PL from regions with laminated Au coatings show decreases in intensity but no spectral shift. In the main graphs, the PL intensities are normalized to the peak intensity of the bare film without Au coating.