Skip to main content
. 2018 Aug 1;7:46. doi: 10.1038/s41377-018-0046-5

Fig. 4. Photoluminescence (PL) spectroscopy for organic light emitting materials and energy transfer analysis.

Fig. 4

a Excitation and emission spectra for PVK film and PFN-Br film on glass. b PL spectra for glass/PVK:3 wt% Ir(MDQ)2(acac)/PFN-Br with two excitation wavelengths : 347 nm and 380 nm. c Current–voltage characteristics of PFN-Br (ionized) and PFN-DOF (non-ionized). d EL spectral shifts of PFN-Br (ionized) and PFN-DOF (non-ionized) at 50 Hz (magnetic-free) and 60,000 Hz (magnetic-engaged)