Wet-processed n-type OTFTs utilizing highly-stable colloids of a perylene diimide derivative

Theoretical insights on morphology and charge transport properties of two-dimensional N,N′-ditridecylperylene-3,4,9,10-tetra carboxylic diimide aggregates

“…Similar model systems were built for the ST and HB phases. Structures were initially relaxed to the local energy minimum by steepest descent optimization and, in analogy with experimental processing, 19,20,22,23,27,29 annealed by MD at 400 K for 1 ns. Annealed structures were then relaxed to 300 K (1 ns), obtaining configurations on which conformational analysis at room temperature was performed.…”

“…The outstanding charge mobilities observed in devices 19 are usually ascribed to the peculiar molecular structure of PTCDI-C13, constituted by a perylene diimide π-core functionalized by two extended C13 alkyl chains, which are able to induce a remarkable long-range ordered packing at the solid state. [20][21][22][23][24] Moreover, the interplay between the supramolecular arrangement of alkyl chains and the π-π stacking interactions among perylene diimide cores can be expected to represent the primary phenomenon behind the formation of ordered PTCDI -C13 layered aggregates, observed in several experiments. 22,25,26 Despite the large amount of work performed on the characterization of PTCDI-C13 thin films at heterointerfaces, 23,25,[27][28][29][30] the details of crystal formation and packing, at the molecular level, still remain elusive.…”

“…[20][21][22][23][24] Moreover, the interplay between the supramolecular arrangement of alkyl chains and the π-π stacking interactions among perylene diimide cores can be expected to represent the primary phenomenon behind the formation of ordered PTCDI -C13 layered aggregates, observed in several experiments. 22,25,26 Despite the large amount of work performed on the characterization of PTCDI-C13 thin films at heterointerfaces, 23,25,[27][28][29][30] the details of crystal formation and packing, at the molecular level, still remain elusive. Indeed, the typical polycrystallinity of organic layered aggregates 22,25,26 hinders the accurate characterization of in-plane packing in PTCDI-C13 thin-films by standard XRD techniques.…”

“…22,25,26 Despite the large amount of work performed on the characterization of PTCDI-C13 thin films at heterointerfaces, 23,25,[27][28][29][30] the details of crystal formation and packing, at the molecular level, still remain elusive. Indeed, the typical polycrystallinity of organic layered aggregates 22,25,26 hinders the accurate characterization of in-plane packing in PTCDI-C13 thin-films by standard XRD techniques. 19,24,28,31 The most accurate available structural information to date suggests formation of ordered island of PTCDI-C13 with a typical terrace height that is compatible with molecules arranged in a stand-up configuration.…”

Highly improved charge injection in pentacene-based organic transistors by chemically doping with copper iodide interlayer

“…In the past few decades, significant progress has been made for developing high‐performance organic field effect transistors (OFETs) that offer potential applications in low‐cost and flexible devices . Despite the encouraging progress, it is well recognized that OFETs suffer from significant contact influences from heterojunctions, created by the deposition of metal onto intrinsic organic semiconductor (OSC) .…”