Nontoxic pyrite iron sulfide nanocrystals as second electron acceptor in PTB7:PCBM-based organic photovoltaic cells.

Herein, we report the synthesis of nontoxic pyrite iron sulfide (FeS) nanocrystals (NCs) using a two-pot method. Moreover, we study the influence of these NCs incorporated into the PTB7:PCBM active layer of bulk-heterojunction ternary organic photovoltaic (OPV) cells. The OPV devices are fabricated with the direct configuration glass/ITO/PEDOT:PSS/PTB7:PCBM:FeS/PFN/FM.

Mineral trioxide aggregate enriched with iron disulfide nanostructures: an evaluation of their physical and biological properties.

The purpose of this study was to characterize mineral trioxide aggregates (MTA) enriched with iron disulfide (FeS ) nanostructures at different concentrations, and to investigate their storage modulus, radiopacity, setting time, pH, cytotoxicity, and antimicrobial activity. Iron disulfide nanostructures [with particle size of 0.357 ± 0.

Effects of alkaline treatment for fibroblastic adhesion on titanium.

Background: The surface energy of titanium (Ti) implants is very important when determining hydrophilicity or hydrophobicity, which is vital in osseointegration. The purpose of this study was to determine how Ti plates with an alkaline treatment (NaOH) affect the adhesion and proliferation of human periodontal ligament fibroblasts (HPLF).

Materials And Methods: experimental study was carried out.

Growth evolution and phase transition from chalcocite to digenite in nanocrystalline copper sulfide: Morphological, optical and electrical properties.

Copper sulfide is a promising p-type inorganic semiconductor for optoelectronic devices such as solar cells, due its small band gap energy and its electrical properties. In this work nanocrystalline copper sulfide (Cu x S), with two stoichiometric ratios (x = 2, 1.8) was obtained by one-pot synthesis at 220, 230, 240 and 260 °C in an organic solvent and amorphous Cu x S was obtained in aqueous solution.

Simple one-step ultrasonic synthesis of anatase titania/polypyrrole nanocomposites.

In this work, hybrid nanocomposites based on anatase titania:polypyrrole (TiO(2):PPy) were directly obtained from a simple, one-step, ultrasonic (UT)-assisted synthesis. The properties of these crystalline nanocomposites were compared with those of others fabricated using cold (Cold)-assisted synthesis without any UT assistance, which required a hydrothermal treatment (HT) to yield crystalline anatase titania in the nanocomposite (TiO(2):PPy) at low temperature (130°C) and in a short time (3h). The SEM results demonstrated that the UT-assisted synthesis is a feasible method to obtain anatase TiO(2):PPy nanocomposites with controlled morphology using low energy.