Self-assembling porphyrins and phthalocyanines for photoinduced charge separation and charge transport

Abstract

Large π-conjugated compounds are promising building blocks for organic thin-film electronics such as organic light-emitting diodes, organic field-effect transistors, and organic photovoltaics. Utilization of porphyrins and phthalocyanines for this purpose is highly fascinating because of their excellent electric, photophysical, and electrochemical properties as well as intense self-assembling abilities arising from π-π stacking interactions. This paper focuses on fundamental aspects of self-assembled structures that have been obtained from porphyrin and phthalocyanine building blocks and more complex composites for photoinduced charge separation and charge transport toward the potential applications to organic thin-film electronics.

Directly Connected AzaBODIPY–BODIPY Dyad: Synthesis, Crystal Structure, and Ground- and Excited-State Interactions

“…[20][21][22][23][24][25][26][27][28] The tremendous potential applications of BODIPY dyes is attributable to their attractive photophysical properties such as narrow absorption and emission bands, high molar absorption coefficients and quantum yields, high solubility in different organic solvents, and low sensitivity to solvent polarity. [29][30] Furthermore, the properties of the BODIPY can be altered by simple modifications at the appropriate positions of the BODIPY core.…”

Microwave-Assisted Synthesis and Characterization of [Rh2(OAc)4(L)2] Paddlewheel Complexes: A Joint Experimental and Computational Study

“…These facts show that the oxygen donor atom has slightly compressed the Rh-Rh bond distance in 0.065Å, which is 0.025Å less than in the Rh-N core. Furthermore, a strong -stacking interaction was found in compound 4 with a distance of 3.403Å among the coumarin rings ( Figure 7(b)) [71][72][73][74][75]. It is possible that the natural bulkiness of either methyl or isopropyl groups in the complexes 1-2 was clearly enough to affect the unit cell packing with a concurrent missing of the -stacking interaction.…”

A quantum chemistry study on the performance of porphyrin-based solar cell sensitisers; Zinc and anchor group position effects

“…Among the different organic dyes, functionalised porphyrins are the mostly used sensitisers [16][17][18][19][20][21][22][23][24]. A special design for functionalising porphyrins is the Donor-π -Acceptor (D-B-A) structure in which B represents π -conjugation bridge serving as a spacer between the porphyrin light harvesting centre of D and the anchoring group of A.…”