Fabrication and Investigation of Two-Component Film of 2,5-Diphenyloxazole and Octafluoronaphthalene Exhibiting Tunable Blue/Bluish Violet Fluorescence Based on Low Vacuum Physical Vapor Deposition Method

Figure 4

Fluorescence emission spectra and photographs: (a) fluorescence emission spectra for DPO-OFN cocrystal films before and after grinding and pure DPO and OFN; (b) fluorescence emission spectra for DPO-OFN cocrystal in liquid phase and DPO-OFN cocrystal film in gaseous phase; (c) photographs for DPO-OFN cocrystal film before grinding (top) and DPO-OFN cocrystal film in gaseous phase (bottom) under 254 nm UV.

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