Search results for "Solution processed"

Solution Processed Micro- and Nano-Bioarrays for Multiplexed Biosensing

2012

This Feature article reports on solution dispensing methodologies which enable the realization of multiplexed arrays at the micro- and nanoscale for relevant biosensing applications such as drug screening or cellular chips.

Poly(alkoxyphenylene-thienylene) Langmuir-Schäfer thin-films for advanced performance transistors

2005

Solution processed Langmuir-Scha ̈fer and cast thin films of regioregular poly(2,5-dioctyloxy-1,4- phenylene-alt-2,5-thienylene) are investigated as transistor active layers. The study of their field-effect properties evidences that no transistor behavior can be seen with a cast film channel material. This was not surprising considering the twisted conformation of the polymer backbone predicted by various theoretical studies. Strikingly, the Langmuir-Scha ̈fer (LS) thin films exhibit a field-effect mobility of 5 × 10-4 cm2/V‚s, the highest attained so far with an alkoxy-substituted conjugated polymer. Extensive optical, morphological, and structural thin-film characterization supports the a…

Solution-processed Nickel Oxide electrocatalyst for Electrochemical Water Splitting

2020

Thin-Film Transistors: Two-Step Solution-Processed Two-Component Bilayer Phthalocyaninato Copper-Based Heterojunctions with Interesting Ambipolar Org…

2016

Advances in solution-processed near-infrared light-emitting diodes

2021

A summary of recent advances in the near-infrared light-emitting diodes that are fabricated by solution-processed means, with coverage of devices based on organic semiconductors, halide perovskites and colloidal quantum dots.

Solution processed organic light-emitting diodes using a triazatruxene crosslinkable hole transporting material.

2018

A cross-linkable triazatruxene that leads to insoluble films upon thermal annealing at temperatures compatible with flexible substrates is presented. The films were used as the hole transporting and electron blocking layer in partially solution processed phosphorescent organic light-emitting diodes, reaching power conversion efficiencies of 24 lm W−1, an almost 50% improvement compared to the same OLEDs without the cross-linkable hole transporting layer.

Organic Transistors: Supramolecular Order of Solution-Processed Perylenediimide Thin Films: High-Performance Small-Channel n-Type Organic Transistors…

2011

Solution-Processed Ni-Based Nanocomposite Electrocatalysts: An Approach to Highly Efficient Electrochemical Water Splitting

2021

In this study, we report an up-scalable and low-cost solution-processed method to in situ synthesize an earth-abundant non-stoichiometric NiOx-based electrocatalytic film for water oxidation. The catalytic activity was found to be inversely proportional to the baking temperature, which varied from 50 to 500 °C. We found the formation of a hybrid nanocomposite thin film of NiOx nanocrystals (<2 nm size) inside an acetate-based organic matrix at low temperatures (<200 °C). The defective and short-range structural order of the NiOx-based nanocomposite electrocatalysts, compatible with lattice stress, low electrical conductivity, and high density of catalytically active surface species, and hig…

Single junction and tandem perovskite solar cells

2017

En este trabajo hemos estudiado diferentes métodos para preparar dispositivos fotovoltaicos de perovskitas. Se han cumplido los tres objetivos definidos al inicio de este periodo de investigación: 1. Hemos establecido con éxito un método estable y reproducible para la fabricación de células solares de perovskita procesadas desde disolución, empleando acetato de plomo y MAI como materiales precursores. 2. Hemos conseguido sintonizar el "bandgap" de perovskitas mixtas de bromuro y yoduro para alcanzar un valor de 2.0 eV, aprovechando las propiedades estabilizadoras de los cationes Cs+ y FA. Hemos investigado perovskitas de doble halogenuro y doble catión Cs0.15FA0.85Pb(Br0.7I0.3)3, fabricadas…

Effects of steric encumbrance of iridium( iii ) complex core on performance of solution-processed organic light emitting diodes

2020

Iridium(iii) complexes are the most frequently applied commercialized green and red emitters for organic light emitting diode (OLED) displays. Throughout years a significant research effort has been devoted to modify these compounds, in order to make them suitable for cost-effective solution-processing techniques, such as inkjet printing. To achieve this, the inherent tendency of the complex molecules to form poorly emissive aggregates needs to be suppressed. In many cases this has been achieved by an encapsulation of the iridium(iii) complex core with dendritic structures, composed of either passive or charge-transporting fragments. In order to validate this approach, we acquired three str…