Abstract Designing materials with appropriate crystal and electronic structures to enhance ionic transport simultaneously are highly desirable for both electrochromic electrochemical energy storage devices. It remains a great challenge meet these requirements. Here, Nb 18 W 16 O 93 nanomaterial is successfully synthesized superstructure motifs uniform self‐supported films prepared on transparent conductive substrate. The results show that the can effectively accommodate lithium ions...

One of the major challenges confronting organic electronics is development high-mobility semiconducting materials, especially n-channel and ambipolar semiconductors. Solution-processable polymers have attracted much attention because their tunable properties suitability for fabrication large-scale devices. Aza substitution has proven effective in electron-transport small-molecule semiconductors; however, high-performance polymeric semiconductors prepared by aza are still lacking. We started...

Abstract A solution‐processable electrochromic (EC) polymer, poly(4,4‐dioctyl‐cyclopenta[2,1‐ b :3,4‐ ′]‐dithiophene) (PDOCPDT) is prepared by means of chemical oxidative polymerization the corresponding monomer. The UV‐vis spectrum spin‐coated PDOCPDT film displays an absorption maximum 580 nm. Although polymer deep blue in its neutral state, it turns to transparent bluish after being oxidized. (thickness 120 nm) exhibits high coloration efficiency (CE)—as as 932 C cm –2 at nm, low response...

Abstract The excellent optical memory effect of electrochromic materials plays a significant role in the construction bistable device that has great potential application prospects field energy‐saving. Extensive efforts have been devoted to improving devices by conducting engineering, whereas fewer focus on molecular engineering at level. Herein, scalable method is developed prepare new metallo‐supramolecular polymer (MSP) with conjugation spacer among polymeric skeleton, which switches from...

We develop two donor–acceptor copolymers based on a fluorinated dithienylethene building block, namely PNFDTE1 and PNFDTE2, in which naphthalenediimide (NDI) acts as an acceptor unit. Thermogravimetric analysis displayed both having good thermal stability with high decomposition temperatures over 400 °C. Broad absorption spectra were observed the UV–vis–NIR region, maxima being 720 724 nm for respectively. Cyclic voltammetry tests exhibited deep-lying lowest unoccupied molecular orbital...

Abstract To establish a structure–property relationship between polymer backbone structures and field‐effect transistor performance has emerged as new topic in organic electronics. The tunability diversity of semiconductors provide the feasibility controlling electrical properties. Herein characterization thienothiophene‐, dithiophenylethene‐, biselenophene‐, diselenophenylethene‐containing azaisoindigo copolymers is presented. As suggested by both theoretical calculations experimental...

Two highly planar cross-conjugated polymers with multiple conformational locks were designed and synthesized, their charge transport properties investigated.

A novel building block (VDTOI) was designed and synthesized. VDTOI-based copolymers exhibit a high mobility of 0.35 cm² V⁻¹ s⁻¹.

We report the synthesis and characterization of two novel difluorothienylethylene-bridged methyleneoxindole (FVTI) methyleneazaoxindole (FVTAI) acceptor units six FVTI- or FVTAI-based donor–acceptor (D–A) copolymers P1–P3F. On basis optimized conjugated backbone conformations, we put forward intramolecular noncovalent interactions existing in these suggested that fluorine pyridine-nitrogen atoms could improve polymeric planarity by forming multiple conformation locks such as N···H, F···H,...

Developing a new strategy to obtain n-type organic semiconductors is crucial for the advance of electronics. We herein report synthesis and investigation series donor–acceptor-type diazaisoindigo-based copolymers, named PAIID-TFBVB-C1, PAIID-TFBVB-C3, PAIID-BVB-C3. After introduction trifluoromethyl groups with strong electron-withdrawing ability into molecular backbone PAIID-BVB-C3-containing stilbene units, obtained polymer PAIID-TFBVB-C3 shows obvious blue-shifted UV–vis absorption...

Herein, we report a series of tetrafluoroethylene (TFE)-containing semiconducting polymers PNBDO-FDTEm (m = 90, 80, 70, 60, and 0), in which the TFE segments were first introduced into polymeric main chains as flexible π-nonconjugated nodes, its fully conjugated analogue PNBDO-FDTE100. Our results indicate that segment is quite compatible with NBDO-alt-FDTE matrix system. The HOMO/LUMO energy levels (approximately −6.0/–4.0 eV) optical band gaps (1.28 remain almost same content varying from...

Electrochromic devices (ECDs) have a broad range of application prospects in many important energy efficient optoelectronic fields, such as smart windows, anti-glare rearview mirrors, low-energy displays, and infrared camouflage. However, there are some factors restricting their development, low coloration efficiency, slow switching speed, poor cycling stability. Coordination polymer (CP) is promising active material for the fabrication high-performance ECD because its ultrahigh fast...

Two graphene nanoribbons with atomically precise N-doping zigzag edges from bottom-up fabrication by a condensation reaction exhibited intrinsically magnetic properties maximum magnetization of 0.303 emu g⁻¹.

The unipolar n-type polymeric semiconductors based on (<italic>E</italic>)-1,2-bis(3-cyanothiophene-2-yl)ethene were developed and their structure–property relationships investigated.

The performance of polymer field-effect transistors was enhanced by microstructure engineering through the use a bi-component solvent.

Tetrafluorodiphenylethene-based donor–acceptor copolymers with multiple conformational locks exhibit excellent ambipolar charge carrier transport characteristics.

Metal–organic frameworks (MOFs) exhibit promising electrochromic (EC) performance owing to their porous structure, regular channel, and tunable component characteristics. However, few reports focus on MOF materials with the EC of a transparent brown-black (neutral colored state) change that is more suitable for smart windows. In this work, we proposed strategy synthesizing (named Ni-BPY) corresponding films fabricated via low-cost electrostatic spray deposition technique. The obtained film...

ABSTRACT In this work, we report the synthesis, characterization, and application of two regioirregular naphthalenediimide (NDI)‐based alternating conjugated polymers, namely P1 P2 , in which nitrile‐substituted moiety, 2,3‐bis(thiophen‐2‐yl)acrylonitrile NDI moiety act as donor acceptor unit, respectively. The polymers possess low‐lying LUMO energy levels −3.92 eV for −3.96 . Both typical dual‐band UV−Vis−NIR absorption profiles NDI‐based show broadened red‐shifted spectra solid state...

The use of chalcogenophenes runs through the whole history developing high performance π-conjugated materials toward organic electronics devices. In this work, we report three A–D–A′–D type (3E,7E)-3,7-bis(2-oxo-1H-pyrrolo[2,3-b]pyridin-3(2H)-ylidene)benzo[1,2-b:4,5-b′]difuran-2,6(3H,7H)-dione- (NBDO-) based copolymers containing different chalcogenophenes, i.e., 4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole (TTT), 4,7-di(selenophen-2-yl)benzo[c][1,2,5]thiadiazole (STS), or...

We designed and synthesized two donor–acceptor type conjugated polymers, the regioirregular polymer RI-PDPP-CNTVT-6 its regioregular counterpart RR-PDPP-CNTVT-6, based on diketopyrrolopyrrole (DPP) alkylated dithienylacrylonitrile (CNTVT) units. Among them, 2-decyltetradecyl side chain DPP acceptor unit hexyl CNTVT donor were used to ensure enough solubility for them. The backbone regioregularity was tune electronic structures carrier transport of system. polymers characterized their...

The influence of isomeric backbones on field-effect properties in benzothiophene-flanked diketopyrrolopyrrole polymers was investigated.