Browse Items (97 total)

Mixed Ionic–Electronic Conduction in Binary Polymer Nanoparticle Assemblies

Polymer-based mixed ionic–electronic conductors (MIECs) are desired for both bulk and interfacial materials in next-generation energy storage and electronic devices. Polymer-based MIECs contain two principal components, one for electronic…

Role of Ionic Functional Groups on Ion Transport at Perovskite Interfaces

Hybrid organic/inorganic perovskite solar cells are invigorating the photovoltaic community due to their remarkable properties and efficiency. However, many perovskite solar cells show an undesirable current–voltage (I–V) hysteresis in their…

Preparation of enynes via copper-catalyzed stereoselective cross-coupling of terminal alkynes with vinyl iodides.

A copper(I)-catalyzed procedure for the synthesis of 1,3-enynes, e.g., 99 % Et (Z)-5-phenyl-2-penten-4-ynoate from phenylacetylene and Et (Z)-3-iodoacrylate using 10 mol% [Cu(bipy)(PPh3)Br] and 2.0 equiv K2CO3 in toluene at 110° for 8 h, is…

Process for preparation of aryl thioethers and aryl selenoethers by copper(I) catalyzed coupling of thiols and selenols with aryl halides.

A mild, palladium-free improved process for prepn. of aryl thioethers and selenoethers comprise reaction of thiols and selenols with aryl halides, preferably aryl iodides catalyzed by copper(I) halide complexes with bidentate ligands, preferably…

Process for preparation of benzo[b]heterocycles from arylacetylenes and halophenols or haloanilines in the presence of copper(I) catalysts.

Benzo[b]heterocycles were prepd. by reaction of an arylacetylene with an o-halophenol or o-haloaniline in the presence of a bidentate Cu(I) catalyst. Thus, reaction of PhC≡CH with 2-IC6H4NH2 in the presence of [Cu(phen)(PPh3)]NO3 (prepn. given)…

Organic photovoltaic devices and methods thereof.

The invention provides a novel fabrication method to produce solar cells using water-based inks that can be readily used in roll-to-roll processing, ink-jet printing and other large-scale fabrication processes. The invention also provides OPV…

Aqueous-Processed Perovskite Solar Cells Based on Reactive Inkjet Printing

We report a one-step method for aqueous-processed perovskite active layer via reactive inkjet printing (RIJ) technique. The perovskite was successfully applied to fabricate solar cell
devices. This is to the best of our knowledge, the first time…

Robust Circular Polarized Emission from Nanoscopic Single-Molecule Sources: Application to Solid State Devices.

Controlling the polarization state of fluorescence emission in solid state devices is an important goal in optical display technologies. High-purity (right or left) circular polarized emission is particularly desirable because an arbitrary linearly…

Conjugated polymer:TiO2 nanocomposite solar cells based on P3HT nanoparticles.

There is widespread interest in developing efficient solar cells derived from conjugated polymers and TiO2. The conjugated polymer can act as a light harvesting dye as well as a hole transport material, and can potentially replace both the…

Polymer nanostructures through packing of spheres.

This chapter discusses about the polymer nanostructures through packing of spheres. The current protocols for the synthesis of org. nanoparticles and methods of self-assembly of nanoparticles, which may serve as a starting point for researchers…