Showing papers in "Organic Electronics in 2015"

TL;DR: In this article, the development of polymeric solar cells from its origin to the most efficient devices published to date is reviewed, and the authors separate these achievements into three different categories traditionally followed by the scientific community to push devices over 10% power conversion efficiency: active materials, strategies that can mainly modify the active film morphology and result in improved efficiencies for the same starting materials, and all the different cell layout/architectures that have been used in order to extract as high photocurrent as possible from the Sun.

TL;DR: In this article, a method of patterning an organic device includes depositing a first organic functional layer over a device substrate to form a first intermediate structure, the first functional layer having a first function such as hole transport or electron transport.

TL;DR: In this paper, the authors used the time-of-flight technique to investigate the charge mobility of the important organic photovoltaic materials PC71BM, PTB7 and their blend.

TL;DR: In this paper, copper(I) complexes have been identified as favorable candidates that could advantageously replace the well-established iridium(III) complexes, and they have been used for low-cost electroluminescent devices.

TL;DR: In this paper, reduced graphene oxide (RGO) and polypyrrole (PPy) were deposited on cotton fabric via thermal reduction of GO and chemical polymerization of pyrrole to prepare textile-based electrodes for supercapacitor application.

TL;DR: An overview of carbazole-based polymeric hosts reported to date is presented in this paper, where the authors focus on the three-tier energy-level of blue dopants.

TL;DR: In this article, a sensor based on polypyrrole (PPy) and tungsten oxide (WO3) hybrid nanocomposite has been fabricated on glass substrate using cost effective spin coating method for detection of NO2 gas in the low concentration range of 5-100ppm.

TL;DR: In this article, a fully vacuum-processed perovskite solar cells with high open circuit voltage was reported, where all the layers in the solar cells including the active layer, hole extraction layers and electron extraction layers were deposited in the vacuum process.

TL;DR: In this paper, a high-quality perovskite thin film was obtained using a solvent-induced-fast-crystallization deposition involving spin-coating the CH 3 NH 3 PbI 3 solution followed by top-dropping chlorobenzene with an accurate control to induce the crystallization, which results in highly crystalline, pinhole-free, and smooth perovskiy thin film.

TL;DR: In this paper, a planar heterojunction perovskite solar cells with power conversion efficiency (PCE) above 14% were reported, where a phenyl-C 61 -butyric acid methyl ester (PCBM)/ZnO double electron transport layer (ETL) as well as a short air-aging step was used.

TL;DR: In this paper, a gas sensor based on DBSA doped PPy-WO 3 hybrid nanocomposites operating at room temperature has been presented, which can detect low concentration of NO 2 gas upto 5ppm with reasonable response of 12%.

TL;DR: In this article, polypyrrole (PPy) nanorods were deposited on cotton fabrics via in situ polymerization of pyrrole in the presence of the fibrillar complex of FeCl 3 and methyl orange as a reactive self-degraded template.

TL;DR: The physical realization of an elementary perceptron demonstrates the ability to form the hardware-based neuromorphic networks with the use of organic memristive devices with a great promise toward new approaches for very compact, low-volatile and high-performance neurochips that could be made for a huge number of intellectual products and applications.

TL;DR: In this paper, spin-coated biodegradable polylactic acid (PLA) thin films were used as substrates for the realisation of all-solution-processed organic electronic devices.

TL;DR: In this paper, the electron affinity of organic light-emitting diodes (OLED) was determined using low-energy inverse photoemission spectroscopy, and the results showed that the reduction potential gives a reasonable estimate rather than the optical gap and ionization energy.

TL;DR: In this article, PEDOT-Tos-PPP films were prepared via a vapor phase polymerization (VPP) method and treated with NaBH 4 /DMSO solutions to adjust the redox level.

TL;DR: In this article, a solution-processed, electron blocking layer (EBL)-free planar heterojunction (PHJ) PSC with a structure of ITO/CH3NH3PbI3/PCBM/Al was fabricated via low-temperature, solutionprocessed method.

TL;DR: In this article, the authors showed that the surface roughness of AgNW networks can also be improved by radiation, which not only avoids any severe deterioration in the optical characteristics of the AgNW film, but also significantly improves its electrical conductivity, adhesion to a polymeric substrate, and ability to endure bending stress.

TL;DR: In this paper, an ultra-thin rechargeable battery technology has been fabricated using screen printing technology, which enabled the sequential deposition of current collector, electrode and separator/electrolyte materials onto a polyethylene terephthalate (PET) substrate in order to form both flexible and rechargeable electrodes for a battery application.

TL;DR: In this article, an ambipolar deep-blue fluorescent emitters, 4,4′-bis(4-(1-(4-(tert-butyl)phenyl)-1H-phenanthro[9,10-d]imidazol-2-yl)naphthalene (2NBTPI), was designed, synthesized and applied in a high-efficiency deep blue emitting OLED.

TL;DR: In this paper, conductivity and optical properties of three different types of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) films [pristine PH1000 film ( PH1000-p ), with 5.1 up to 744 S/cm while the processing solvent of isopropanol or water does not change the conductivity of PH 1000-p much.

TL;DR: In this article, the effect of PEI cathode interlayer on the work function and the interface resistance of ITO electrode in the inverted polymer solar cells (PSCs) based on PBDTTT-C-T:PC 70 BM was investigated.

TL;DR: In this paper, the authors demonstrate the patterning of top emitting organic light emitting diodes (OLEDs) by direct-write Aerosol Jet printing in air from non-halogenated solvents.

TL;DR: Though very simple, the approach leads to logic stages with a delay down to 30 μs, the shortest reported to date for all-polymer circuits, where each single component has been printed.

TL;DR: In this paper, a violet quantum dot-based light-emitting diodes (QD-LEDs) with heavy-metal-free ZnSe/ZnS have been demonstrated by choosing different hole transport layers, including poly(4-butyl-phenyl-diphenyl-amine) (poly-TPD), poly[9,9-dioctylfluorene-co-poly-N-[4-(3-methylpropyl]-diphenylamine] (TFB), and poly-N-vin

TL;DR: In this article, a spin-coating-based bio-molecular device based on DNA with reversible memristive behavior is fabricated by a spincoating method. And the spincoated DNA 10 /Au device shows good endurance, long retention time, satisfying ON/OFF current ratio, extraordinary write-read-erase rewritable ability and reproducible write-once read-many times (WORM) memory behavior.

TL;DR: In this paper, a solution processed high-k nanocomposite/low-k polymer bilayer gate dielectric that enables the fabrication of organic field effect transistors (OFETs) that operate effectively at 1 ǫ in high yields is reported.

TL;DR: In this article, the authors investigate the barrier performance of Al2O3 films processed by ALD at 80 C with trimethylaluminum and ozone as precursors, and they find that all spots giving raise to water ingress on the 20 � 20 lm 2

TL;DR: In this paper, the effects of metal chlorides such as LiCl, NaCl, CdCl2 and CuCl2 on optical transmittance, electrical conductivity as well as morphology of PEDOT:PSS films have been investigated.

TL;DR: In this article, a pentacene ultrathin film transistor has been integrated into the implement of a gas sensor based on an increase in its mobility and a shift of its threshold voltage.