Acenaphthylene-Fused Ullazines: Fluorescent π-Extended Monopyrroles with Tunable Electronic Gaps

π-Extended dibenzoullazines containing an acenaphthylene subunit were designed and synthesized. Two different synthetic strategies were employed: route A, based on Pd-catalyzed cyclodehydrohalogenation of α,α-disubstituted N-arylpyrroles, and route B, using a...

Tuning of the Electronic Levels of Oligothiophene-Naphthalimide Assemblies by Chemical Modification

Inversion of the connections of amidine linkers combined with controlled oligothiophene chain catenation in oligothiophene-naphthalimide assemblies provides an efficient method to tune the HOMO and LUMO values in this type of assemblies. This modification also suppresses the intramolecular charge transfer (ICT) band normally found in this type of derivatives, also delocalizing the frontier molecular orbitals over the whole conjugated skeleton. The resultant assemblies were used in the fabrication of field-effect transistors, which showed well-balanced ambipolar transport.

A perylene diimide-based non-fullerene acceptor as an electron transporting material for inverted perovskite solar cells

Herein we introduce a new perylene diimide dimer (diPDI) as a non-fullerene electron transporting layer (ETL) material for inverted perovskite solar cells.

Surface grafting of octylamine onto poly(ethylene-alt-maleic anhydride) gate insulators for low-voltage DNTT thin-film transistors

We report the surface grafting of octylamine onto a poly(ethylene-alt-maleic anhydride) (PEMA) gate insulator for enhancing the performance of dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene (DNTT) thin-film transistors.

The effect of inorganic/organic dual dielectric layers on the morphology and performance of n-channel OFETs

Excellent n-channel behavior was observed for cyclohexyl substituted naphthalene diimide with the highest μ_e value of 0.08 cm² V⁻¹ s⁻¹, V_TH as low as 0.5 V and I_ON/I_OFF ratio of 10⁴ under vacuum with a Al₂O₃/PVA dual dielectric layer.