Phthalocyanine aggregates on metal dichalcogenide surfaces: dye sensitization on tin disulfide semiconductor electrodes by ordered and disordered chloroindium phthalocyanine thin films

Structurally Controlled Porphyrin‐Aggregation Process in Phospholipid Membranes

“…lc) that were not able to fit with the reasonable x2 value even as a sum of three components, also indicating the presence of different aggregation units within the porphyrin clusters. constants (k,,,,) and fluorescence lifetimes (7) The physical state of the ordered environment plays an important role in the aggregation process. Thus, heating and incubation above the phase transition temperature of DPPC liposomes with aggregated EP, TP, DTP and TTP result in an appearance of initial monomeric porphyrin fluorescence emission for EP and TTP, indicating the decomposition of formed cluster and aggregated species due to reduction of membrane order parameter and an increase of molecular motion.…”

“…Biomolecular self-assembly and cooperative interchromophore interactions in natural thylakoid membranes result in well-defined spatial structural arrangements of the photosynthetic apparatus (1,2) and embedded pigments play an important role in efficient light harvesting and following energy-and electron-transfer processes. The principles of such spontaneous formation of highly ordered, noncovalently linked macromolecular assemblies attract much attention with respect to the design of supra-and supermolecular systems ( 3 ) and its possible application in artificial photosynthesis (4), molecular electronics (3, nonlinear optics (6), conducting organic thin films (7), as well as in photodynamic tumor therapy (8). One of the most promising approaches to mimic and to understand the functional activity of the biomembrane assembly is a study of interchromophore interactions, distribution?, orientation, conformational changes, mobility and aggregation behavior of macrocyclic compounds within ordered environments.…”

Electrodeposited Porous ZnO Sensitized by Organic Dyes – Promising Materials for Dye‐Sensitized Solar Cells with Potential Application in Large‐Scale Photovoltaics

“…Very narrow absorption spectra and also photocurrent action spectra could be obtained speaking for a well -defi ned crystallization of PcIn(Cl) on n -SnS 2 and injection of electrons from the excited state of the dyes in the crystallites into SnS 2 . A quite constant quantum effi ciency of about 10% was found when such highly ordered fi lms were compared with polycrystalline fi lms indicating a direct injection of charge from molecules adjacent to SnS 2 since otherwise more pronounced differences should have been observed among the different crystalline modifi cations [224] . An increased quantum effi ciency of up to 44% was obtained for fi lms of phthalocyanines carrying eight dodecylamide or dodecylester functions dropcoated from solutions on SnS 2 [225] .…”

The importance of gap states for energy level alignment at hybrid interfaces

“…on coinage metal surfaces [15,16]; as a result, the molecular film structures on different layered van der Waals materials resemble each other strongly. Indeed, the thin film structure of various phthalocyanines has been compared on molybdenum disulfide (MoS 2 ) and tin disulfide (SnS 2 ) using techniques such as angle-resolved ultraviolet photoemission spectroscopy (ARUPS) and low-energy electron diffraction (LEED) [7,9,[17][18][19]. Such structural understanding is essential for a correct interpretation of the interfacial spectroscopy as revealed e.g.…”