High-Mobility Hole-Transporting Polymers for Electroluminescence Applications

Abstract

A covariant model based on the Bethe-Salpeter formalism is proposed for investigating the solar proton burning process pp → De + ν e and the near-threshold deuteron disintegration via electromagnetic and weak interactions. Results of numerical calculations of the energy dependence of relevant cross sections and the astrophysical low-energy cross section factor S pp of the proton burning process are presented. Our results confirm previous canonical values, and the energy dependence of the S pp factor is rather close to phenomenological extrapolations commonly adopted in computations of solar nuclear reaction rates.

Synthesis and characterization of greenish‐blue emitting vinyl copolymer containing pyrene and triarylamine moieties

“…36 -41 However, the major drawback of pyrene is the low fluorescence quantum yields (0.18). Since arylamine derivatives and their vinyl polymers generally possess relatively higher fluorescence quantum yields according to our previous results, 28,42 -45 copolymers composed of arylaminefunctionalized vinyl monomer and vinyl pyrene may be able to fulfill the desire for an improvement in the fluorescence quantum efficiency.…”

“…Compared with their low molecular weight model compounds, triarylamine derivative bearing conductive polymers show good film forming capabilities, which may render them suitable for the fabrication of large area and flexible OLEDs by both spin coating and inkjet printing methods . Two types of triarylamine‐based polymers have been reported: main‐chain and side‐chain . The side‐chain polymers enjoy greater flexibility in tuning the physical, mechanical and rheological properties by simply varying the chemistry of the triarylamine moiety or by copolymerization with another kind of conducting/luminescent monomer at different compositions.…”

Charge balance materials for homojunction and heterojunction OLED applications

“…Without long range pi electron delocalization, conductive vinyl polymers are optically clear and also less prone to environmental degradation. We have previously reported on the synthesis of a hole transporting conductive vinyl polymer, poly(Nphenyl-N-styryl-1-naphthylamine) (poly(NPA)) and its derivatives [10]. The vinyl conductive polymers have high MW (over 200000) yet are soluble in most common organic solvents (e.g., THF, chloroform, etc.).…”