Materials Literature
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Diblock copolymers consisting of a poly(acrylic acid) (PAA) segment and a LCST-type poly(N,N-diethylacrylamide) (PDEAAm) block were obtained by nitroxide-mediated polymerization in aqueous dispersion using a water-soluble macroalkoxyamine. The influence of several parameters on the polymerization (temperature, initial…
Carbon nanotubes (CNTs) have been recently spun into macroscopic fiber, in which CNTs are highly aligned along the axial direction, providing excellent mechanical and electrical properties for a wide variety of applications. One CNT fiber adsorbed with dye molecules functions as working electrode, while another CNT fi…
Four novel asymmetric triphenylamine dyes configured with donor–donor–acceptor (D–D–A) and donor–donor–bridge–acceptor (D–D–π–A) structures were synthesized and applied to organic dye-sensitized solar cells. The terminal methoxy group in the donor part and the furane-bridge unit contributed to the wider absorption reg…
We study the influence of the carrier injection efficiency on the performance of light-emitting electrochemical cells (LECs) based on a hole-preferred transporting cationic transition metal complex (CTMC) [Ir(dfppz)(2)(dtb-bpy)](+)(PF(6)(-)) (complex 1) and an electron-preferred transporting CTMC [Ir(ppy)(2)(dasb)](+)…
Two novel polymeric Mg formates [(Fmd)Mg(HCOO)3]∞ (1) and [(Gua)Mg(HCOO)3]∞ (2) containing the formamidinium [Fmd+, (NH2–CH+–NH2)] and guanidinium [Gua+, C+(NH2)3] cations have been prepared under solvothermal conditions. 1 and 2 are isostructural; they crystallize in the orthorhombic space group Pnna. Their 3D scaffo…
High-pressure optical absorption and Raman scattering measurements have been performed in defect chalcopyrite (DC) CdGa2Se4 up to 22 GPa during two pressure cycles to investigate the pressure-induced order-disorder phase transitions taking place in this ordered-vacancy compound. Our measurements reveal that on decreas…
Fullerenes (represented by buckminsterfullerene, C(60)) are a new kind of organic compound with a cage-like structure. A great deal of attention has been focused on their unique properties. From the viewpoint of drug discovery, fullerenes could be novel lead compounds for drug discovery. However, fullerenes are poorly…
Multi-reference Configuration Interaction (MRCI) is often used to predict the electronic structures and reaction energetics of small molecules with very high accuracy. Unfortunately, MRCI is inapplicable to large or even medium-sized molecules for two reasons: its computational cost scales poorly with molecule size an…
The novel and well-defined supramolecular amphiphilic star-branched copolymer poly((caprolactone)-star-(poly(2-N,N-dimethylamino)ethylmethacrylate)7 (PCL-(PDMAEMA)7) with a porphyrin core was prepared via the combination of ring-opening polymerization (ROP), atom transfer radical polymerization (ATRP), and supramolecu…
A novel hierarchical TiO(2) flower consisting of anatase TiO(2) nanotubes on a Ti foil substrate has been prepared via a mild hydrothermal reaction of TiO(2) nanoparticles/Ti foil. The photovoltaic performance of DSSC based on hierarchical TiO(2) flowers/Ti (7.2%) is much higher than that of TiO(2) nanoparticle/Ti (6.…
An analytic function f is quasi‐subordinate to an analytic function g, in the open unit disk if there exist analytic functions φ and w, with |φ(z)| ≤ 1, w(0) = 0 and |w(z)| < 1 such that f(z) = φ(z)g(w(z)). Certain subclasses of analytic univalent functions associated with quasi‐subordination are defined and the bound…
Two new truxene-based organic sensitizers (M15 and M16) featuring high extinction coefficients were synthesized for dye-sensitized solar cells employing cobalt electrolyte. The M16-sensitized device displays a 7.6% efficiency at an irradiation of AM1.5 full sunlight.
Two bipolar host materials p-cbtz and m-cbtz, with both phenylcarbazole and 3,5-bis(2-pyridyl)-1,2,4-triazole moieties, were synthesized and tested for fabrication of various phosphorescent OLEDs. The sp3-hybridized nitrogen atom of the 1,2,4-triazole fragment disrupted the π-conjugation between the electron donating…
An exceptional acentric MOF material with two-fold hetero-interpenetrated nets consisting of a 3D diamond network (mononuclear Cd(CO2)4 node) and a 3D CsCl framework (trinuclear Cd3(CO2)8 node) has been constructed, which contains 6-, 7-, 8-coordinated Cd2+ ions and shows a high thermal stability (>420 °C) and SHG act…
A brush-shaped, large-volume plasma was generated at ambient pressure with a dc power supply and flowing argon gas, as well as a narrow outlet slit. Based on the V–I curve and emission profiles obtained in our experiment, the plasma shows some typical glow discharge characteristics. The electron density in the positiv…
The reaction of 5,10,15,20-tetra(carboxyphenyl)porphyrin (H6TCPP) or metalated M-H4TCPP (M = CoII, NiII, CuII and VIVO) with lead nitrate afforded five metal–organic frameworks (MOFs), [Pb2(H2TCPP)]·4DMF·H2O (1), Pb2(Co–TCPP)(H2O)(DMF)]·1.5DMF (2), [Pb2(Ni–TCPP)(DMF)(H2O)]·1.5DMF·2H2O (3), [Pb2(Cu–TCPP)(DMF)(H2O)]·1.5…
A novel green synthesis strategy was developed to synthesize a film photocatalyst containing anatase TiO(2) nanorods wholly dominated with {100} and {101} facets by employing a simple hydrothermal reaction in the presence of NaCl solution and hydrogen titanate nanosheet array film. The formation mechanism of the anata…
Ag2O nanoparticle modified α-Bi2O3 composite photocatalysts were synthesized and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-vis diffuse reflectance spectroscopy. XRD patterns confirmed that the composites consist of cubic phase Ag2O and monoclinic α-Bi2O3 phase. The Ag2O loadin…
We report Arbuzov-type reactions of chlorofullerene C(60)Cl(6) with trialkyl phosphites producing highly functionalized fullerene derivatives C(60)[P(O)(OR)(2)](5)H with high yields. The designed family of [60]fullerene phosphonic acids and their esters showed unusual properties which might find valuable material scie…
We report the solution-phase self-assembly of nanowires of a series of six oligothiophene-functionalized naphthalene diimides (NDI-nTH and NDI-nT) and their use as electron acceptors in all-nanowire bulk heterojunction organic solar cells. The dimensions and detailed morphology of the nanowires varied greatly with mol…