Silicon–organic pigment material hybrids for photovoltaic application

Growth and characterization of thin films prepared from perfluoro-isopropyl-substituted perfluorophthalocyanines

“…F 64 PcM and other (R f ) 8 F 8 Pc may be of great value, however, in surface modifications, interfacial reactions and in mixed bulk materials just because of this unique combination of strong acceptor character and low aggregation tendency. Examples for applications that dwell on the monomolecular characteristics of (R f ) 8 F 8 Pc in vapor-deposited films are optical filters, non-linear optical devices like optical limiters [36,37] and doping of inorganic or organic semiconductors [38,39]. Experiments are currently on the way in our laboratories to further elucidate the potential of F 64 PcM and other (R f ) 8 F 8 Pc in this respect.…”

The Effect of Gradual Fluorination on the Properties of FnZnPc Thin Films and FnZnPc/C60 Bilayer Photovoltaic Cells

“…[ 12 ] This energetic staircase-behavior upon gradual fl uorination has been qualitatively verifi ed by semiempirical calculations, apart from some deviations between the absolute HOMO level positions. [ 12,13 ] In this contribution, we utilize zinc phthalocyanines to investigate the impact of gradual fl uorination on the photophysical properties of F n ZnPc thin fi lms and F n ZnPc/C 60 ( n = 0, 4, 8, 16) bilayer cells. The choice of materials is motivated by their complementary spectral absorption in the visible, confi rmed by our optical and external quantum effi ciency (EQE) measurements, and by short circuit current densities ( j sc ) of up to 12 mA cm −2 , reported for bulk-heterojunction solar cells.…”

Conductive response of a photo-excited sample in a radio-frequent driven resonance cavity

“…22 The study of conjugate polymers was boosted with the introduction of laser pulses as an ionizing source. 23,24 TRMC is now being used routinely as a method to determine transient conductivities of a wide variety of materials, such as silicon-based composites for solar cells, [25][26][27][28] compound semiconductors, 29,30 columnar stacked molecular aggregates, [31][32][33][34][35][36][37][38][39] bulk solids or thin films of conjugated polymers, [40][41][42][43][44][45][46][47] and molecular wires in dilute solution.…”