Study of Structural, Optical and AC Electrical Properties of Chloroindium Phthalocyanine

Dichloro-tin (IV) hexadeca-fluoro-phthalocyanine (F16PcSnCl2) thin film on porous silicon layers by ultrasonic spray pyrolysis, for possible application in optoelectronics devices

“…In figure 6(a), the diffuse reflectance spectra of the structures are presented. The c-Si/F 16 PcSnCl 2 -100 °C and c-Si/F 16 PcSnCl 2 -70 °C (solid line and dot plots) exhibit three prominent peaks around 260, 365, and 670 nm, corresponding to the primary bands of the phthalocyanines [39,40]. On the other hand, the PS/F 16 PcSnCl 2 -100 °C and PS/F 16 PcSnCl 2 -70 °C (dashed line and dash-dot plots) demonstrate the attenuation effect caused by the presence of the PS layer in comparison to c-Si.…”

Charge recombination suppression in dye-sensitized solar cells by tuning the dielectric constant of triphenylamine dyes with altering π-bridges from naphthalene to anthracene units

“…2, the C value experiences an increase vs. T , which could be related to more accumulation of charge carriers in higher T that similar results can be found in the literature for other types of dyes like phthalocyanines. 45 The tan δ vs. f profile of TpAzo 1 and TpAzo 2 are presented in Fig. 2 at T = 299, 311, 323, 348, and 368 K. Following Penn's model, 46 the relation between ε ′ of dyes and band gap ( E g ) can be formulated as eqn (9) and (10): 47 where ω p 2 ≡ 4πNe 2 / m is the plasma frequency; E f , ℏ, m , and N represent the Fermi energy, Plank's constant, electron effective mass, and concentration of electrons, which depends on T and E f .…”

Preparation and operating characteristics analysis of high-speed iron phthalocyanine organic phototriode

“…When the square wave signal frequency increases to 5 kHz: t on = 4.37 µs t off = 3.28 µs. As the input signal frequency increases, the capacitance of the Schottky junction becomes smaller [26], and the device's switching speed becomes faster.…”