Optical properties of lead phthalocyanine (PbPc) thin films

Influence of X-ray irradiation on the optical properties of ruthenium(II)octa-(n-hexyl)-phthalocyanine thin film

“…This is the characteristic behaviour of indirect transitions in non-crystalline materials. This type of transition is in well agreement with previous work [26,29,32]. The values for the corresponding energies were found to be 1.266, 1.57, 2 and 2.39 eV for the as deposited and 1.418, 2.33, and 3.2 eV for the irradiated films.…”

Structural and optical properties of thermally evaporated zinc phthalocyanine thin films

“…To determine the energy gap, E g , and the type of interband transitions responsible for optical absorption, a plot of (naht) 1/2 versus photon energy (near the absorption edge of the Q and Soret bands) was found to be the best fit for our calculations and is shown in [41] fundamental energy gap is 2.94 and 2.88 eV for as deposited and annealed films, respectively. The interband transitions at the fundamental edge are accompanied with phonon emission in as deposited and annealed films.…”

Optical properties of thermally evaporated tin-phthalocyanine dichloride thin films, SnPcCl2

“…Metal phthalocyanines (MPc's) have gained considerable attention in recent years because they have been successfully applied in many applications such as dyes, pigments, photocopying agents [1], gas sensors [2,3], solar cells [4][5][6] and light emitting diodes [7,8]. Optical absorption studies of MPc's thin films have attracted the researchers over the last decade [9][10][11][12][13][14][15]. Relatively few studies have focused on the halogenated MPc's although there is evidence that they may exhibit properties suitable for gas sensing applications [16].…”