Near-infrared sensitization solar cell with the electrode of aluminium phthalocyanine adsorbed on nanocrystalline titanium dioxide film

Abstract

The dye-sensitized solar cell using visible and near-infrared sensitization of nanocrystalline TiO 2 films by aluminium phthalocyanine, aluminium 2,9,16,23-tetraphenoxy-29H, 31H-phthalocyanine hydroxide (AlTPPc), was developed and its photoelectrochemical properties were investigated. The short-circuit photocurrent (ISC) was 0.026 mA cm-2, the open-circuit photovoltage ( V OC) was 186 mV, and the fill factor (FF) of solar cell using AlTPPc adsorbed on nanocrystalline TiO 2 film electrode was estimated to be 40.4%, respectively. By using AlTPPc adsorbed on nanocrystalline TiO 2 film electrode, photovoltage and photocurrent were higher compared with that of only nanocrystalline TiO 2 film electrode and were maintained under near-infrared irradiation. Thus, the solar cell using the near-infrared sensitization by AlTPPc adsorbed on nanocrystalline TiO 2 film electrode was developed.

Absorption, luminescence, and Raman spectroscopic properties of thin films of benzo-annelated metal-free porphyrazines

“…2 No reproducible luminescence signature could be obtained, possibly due to degradation of AnH 2 under the excitation conditions. This degradation process is particularly evident for laser excitation at l exc ¼ 355 nm.…”

“…To our knowledge Raman spectra of tBu-TAPH 2 have not yet been measured. This compound, however, representing the simplest structure of the porphyrazine system, should be a good model and should facilitate the assignments of the Raman bands in comparison with the spectra of the benzo-annelated porphyrazines.…”

“…These compounds have proven great potential as materials for optoelectric and electronic devices for solar cells [1][2][3], organic light-emitting diodes (OLED) [4,5], semiconductor layers [6,7], or optical limiters [8,9]. For most of these device applications, which largely rely on the electronic excited state properties, phthalocyanines are involved in the form of solid-layered structures or thin films.…”

Vegetable-based dye-sensitized solar cells

“…108 With a structural design involving long alkoxyl chains to enclose the porphyrin core (YD2-o-C8 dye) suppressing the dye aggregation suffered by zinc porphyrins, 303 the DSSC achieved Z = 12.3% in 2011 with co-sensitization of a synthetic organic dye (Y123, a donor-p-bridge acceptor) and a cobalt-based electrolyte. Indeed, despite many efforts having been made [314][315][316][317][318][319] (see ref. 304 The co-sensitization effect resulted in better PV performance (Z = 12.3%) with respect to DSSCs using a single dye (e.g., YD2-o-C8, Z = 11.9%).…”

Effect of Thickness on Structural and Optical Properties of Tetra‐tert‐ butyl‐2, 3‐naphthalocyanine Thin Films

“…More complex options to porphyrines, naphthalocyanines have been extensively used as potential materials for optoelectronic and electronic devices for solar cells [1][2][3] . Tert-butyl substituted naphthalocyanine, as one of phthalocyanine derivatives is known for frequency and time domain spectral hole burning optical storage devices 4 due to the presence of large inhomogeneous broadening, relatively narrow holes at low temperatures and a built in proton photo transformation mechanism between different tautomers.…”