Photoluminescence of lead phthalocyanine thin films

The thin films of Lead Phthalocyanine (PbPc) on glass substrates were prepared by Vacuum deposition method. The thicknesses of the films were 150 rim, 300 nm and 450 nm. The thickness 450 nm sample is annealed in high vacuum at 303 K and 373 K temperature. The sample have been analysed by Photoluminescence, transmittance and absorption. Transmission and photoluminescence (PL) properties were measured in Lead Phthalocyanine (PbPc). A thin-film and a single crystal of PbPc were used for the measurements. These measured spectra were compared to theoretical values. The range of wavelengths used was different due to the different methodologies used for the measurements. It shows the variation of transmittance, absorption and Photoluminescence with wavelength of PbPc films for different thicknesses.