Systematic side-chain engineering has been performed for diketopyrrolopyrrole-selenophene vinylene selenophene (DPP-SVS) polymers to determine the optimal geometries most efficient charge transport, and structure–property relationship thoroughly investigated using a range of analyses. A series DPP-SVS polymers, ranging from 25-DPP-SVS 32-DPP-SVS, with branched alkyl groups containing linear spacer C2 C9 synthesized, electrical performance these is significantly dependent on both length group...

While the regioregularity (RR) of conjugated polymers is known to have a strong influence on their inherent properties, systematic study RR effect has been limited due lack synthetic methodology. Herein, we successfully produced series poly(3-hexylthiophene)s (P3HTs) having wide range from 64 98%. Incorporation controlled amounts head-to-head (H–H) coupled dimer in modified Grignard metathesis polymerization allows facile tuning P3HTs with comparable molecular weight and low polydispersity....

Abstract Despite great challenges, the development of new molecular structures with multiple and even conflicting characteristics are eagerly pursued for exploring advanced applications. To develop high-performance chiral organic semiconducting molecules, a distorted π-system is required strong coupling circularly polarized light (CPL), whereas planar π-stacking systems necessary high charge-carrier mobility. address this dilemma, in work, we introduce skeleton merging approach through...

Transparent conductors (TCs) play a vital role in displays, solar cells, and emerging printed electronics. Here, we report solution-processable n-doped organic conductor from copper-catalyzed cascade reactions the air, which involves oxidative polymerization reductive doping one pot. The formed polymer ink is shelf-stable over 20 days can endure storage temperatures -20 to 65 °C. optimized thin-film TC exhibits low sheet resistance of 45 Ω/sq high transmittance (T550 > 80%), rival indium tin...

Chiral supramolecular nanostructures with optoelectronic functions are expected to play a central role in many scientific and technological fields but their practical use remains its infancy. Here, this paper reports photoconductive chiral organic semiconductors (OSCs) based on perylene diimides the highest electron mobility among OSCs investigates structure properties of homochiral heterochiral assemblies from bottom‐up self‐assembly. Owing well‐ordered packing, nanomaterials exhibit...

We report a systematic investigation of the correlations between electron mobility polymer acceptors and photovoltaic performances all-polymer solar cells (all-PSCs) by using series naphthalene diimide (NDI)-based acceptors. Polymer typically have much lower than fullerenes, which is one main factors in limiting performance all-PSCs. In addition, anisotropic charge transport properties polymers require careful control their packing structure orientation suitable for use To planarity backbone...

A new series of conjugated random terpolymers (PDPP2T-Se-Th) was synthesized from an electron-deficient diketopyrrolopyrrole (DPP)-based unit in conjugation with two electron-rich selenophene (Se) and thiophene (Th) species, a view to inducing different crystalline behaviors the polymers. The crystallinity polymers can be systematically controlled by tuning ratio between Se Th; increase content induced remarkable melting crystallization temperatures as well PDPP2T-Se-Th terpolymers. These...

Molecules capable of producing zero-field circularly polarized phosphorescence (CPP) are highly valuable for chiroptoelectronic applications that rely on triplet exciton. However, the paucity tractable molecular design rules obtaining CPP emission has inhibited full utilization. We report amplification by formation helical co-assemblies consisting achiral square planar cycloplatinated complexes and small fractions homochiral complexes. The latter a unique Pfeiffer effect during superhelical...

Abstract Chiral supramolecules have great potential for use in chiral recognition, sensing, and catalysis. Particularly, supramolecular biocoordination polymers (SBCPs) provide a versatile platform characterizing biorelated processes such as chirality transcription. Here, we selectively synthesize homochiral heterochiral SBCPs, composed of naphthalene diimide ligands Zn ions, from enantiomeric mixed R -ligands S -ligands, respectively. Notably, find that the self-sorted SBCPs exhibit...

Systematic side-chain engineering through adjustment of spacer groups in diketopyrrolopyrrole-thiophene vinylene thiophene (DPP-TVT) polymers reveals odd–even dependence device performance.

In this study, we report a facile electrical conductivity improvement method for poly (3,4-ethylenedioxythiophene):poly (4-styrenesulfonate) (PEDOT:PSS), which is one of the most widely studied conductive polymers and used many electronic applications. From our successfully demonstrated that simple hydroquinone (HQ) addition to pristine PEDOT:PSS aqueous solution can dramatically increase thin film from 0.7 S/cm 1394 even without removal an insulator-like PSS coated film. We superior...

Abstract Control over the morphology and crystallinity of metal halide perovskite materials is key importance to enable high‐performance optoelectronics. Here, a simple yet effective template‐free self‐assembly synthesis granular wires with ultrahigh photodetectivity (3.17 × 10 15 Jones) reported. The 1D grains driven by differences in surface interaction energies facets. superb photodetecting performance originates from extremely low dark current engendered energetic barriers featuring...

Chiral hybrid perovskites show promise for advanced spin-resolved optoelectronics due to their excellent polarization-sensitive properties. However, chiral developed date rely solely on the interaction between organic ligand cations exhibiting point chirality and an inorganic framework, leading a poorly ordered short-range system. Here, we report powerful method overcome this limitation using dynamic long-range organization of guided by incorporation dopants, which induces strong...

Chiral organic optoelectronics using circularly polarized light (CPL) as the key element in photonic signal has recently emerged a next-generation technology. However, it remains challenging to simultaneously achieve high polarization selectivity and superior optoelectronic performance. Supramolecular two-dimensional (2D) chiral single crystals may be good candidates for this purpose due their defect-free nature, molecular diversity, morphologies. Here, quasi-2D of perylene diimides with...

This study investigates the performance of single-crystalline nanomaterials wide-band gap naphthalene diimide (NDI) derivatives with methylene-bridged aromatic side chains. Such materials are found to be easily used as high-performance, visible-blind near-UV light detectors. NDI nanoribbons assembled using a simple solution-based process (without solvent-inclusion problems), which is then applied organic phototransistors (OPTs). OPTs exhibit excellent n-channel transistor characteristics,...

Multiple-patterned nanostructures prepared by synergistically combining block-copolymer lithography with nano-imprinting have been used as back reflectors for enhancing light absorption in organic optoelectronic devices. The multiple-patterned electrodes significantly boosted the performance of photovoltaics and photo­transistors, owed to highly effective scattering plasmonic effects, extending range their practical applications. As a service our authors readers, this journal provides...

Improving the charge-carrier mobility of conjugated polymers is important for developing high-performance, solution-processed optoelectronic devices. Although [1]benzothieno[3,2-b]benzothiophene (BTBT) has been frequently used as a high-performance p-type small molecular semiconductor and employed few times building block polymers, it never explored donor moiety n-type polymers. Here, BTBT with either perylene diimide (PDI) or naphthalene (NDI) units to generate donor–acceptor copolymer...

Multifunctional heterochiral micro-/nano-sized metal–organic framework single crystals are developed for high-performance visible–blind UV photodetection.

The interaction between light and chiroptical polymers plays a crucial role in chiroptics, spintronics, chiral-spin selectivity. Despite considerable successes creating dissymmetric polymer films, the elucidation of activities under electrochemical switching remains unexplored. Here homogeneous chiral electrochromics is reported using assembly conjugated through transient solidification process with molecular templates. In their neutral state, electrochromic directly produce remarkably...