Showing papers in "Organic Electronics in 2009"

TL;DR: In this article, a roll-to-roll process for fabrication of polymer solar cells comprising five layers on flexible substrates is presented, where the device geometry is inverted and allow for fabrication on both transparent and non-transparent flexible substrate.

TL;DR: In this article, a study on p-doping of organic wide band gap materials with Molybdenum trioxide using current transport measurements, ultraviolet photo-electron spectroscopy and inverse photo electrophoresis was presented.

TL;DR: In this paper, the lowest unoccupied molecular orbital (LUMO) energies of a variety of molecular organic semiconductors have been evaluated using inverse photoelectron spectroscopy (IPES) data and are compared with data determined from the optical energy gaps, electrochemical reduction potentials, and density functional theory (DFT) calculations.

TL;DR: In this article, the thermal stability of thin PEDOT:PSS films was investigated by dc conductivity measurements, X-ray and UV photoelectron spectroscopies as a function of heating temperature and heating time.

TL;DR: In this article, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is investigated as a transparent cathode to replace indium tin oxide (ITO) in inverted polymer solar cells.

TL;DR: In this paper, a unique nano-ridge structure of zinc oxide (ZnO) and its application in high performance inverted polymer solar cells was reported, which provided an effective hole blocking layer and an increased interfacial area for electron collection.

TL;DR: In this article, thermal evaporated tungsten oxide (WO3) films are investigated as a buffer layer on anodes to improve the performance of bulk-heterojunction solar cells based on poly(3hexylthiophene) (P3HT) and [6,6]-phenyl C61 butyric acid methyl ester (PCBM-60).

TL;DR: In this article, the performance of the inkjet-printed PEDOT:PSS layer and the roles of additives in device efficiency have been demonstrated using a 3.16% efficient solar cell with an inkjet printing.

TL;DR: In this article, the linear-shaped molecules of fluorescent styrylbenzene derivatives are horizontally oriented in organic amorphous films fabricated by conventional vacuum deposition even when the molecules are doped in an isotropic host matrix film.

TL;DR: In this paper, the authors reported the enhanced performance of poly(3-hexylthiophene)/[6,6]-phenyl-C 61 butyric acid methyl ester (P3HT/PCBM) bulk heterojunction solar cells with wet deposited interfacial gold nanostructures on their indium tin oxide (ITO) surfaces.

TL;DR: In this article, an ideal host-guest system for emission in phosphorescent OLEDs with only 1% guest doping condition for efficient energy transfer was proposed, which achieved a driving voltage of 3.7 V, maximum current and power efficiencies of 26.53 cd/A and 29.58 lm/W, respectively.

TL;DR: In this article, the influence of thickness and thermal annealing of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) layer on the performance of bulk heterojunction solar cells made from blends of regioregular poly (3-hexylthiophene) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61.

TL;DR: In this paper, a solution-processed vanadium oxide (V2O5) as an anode interlayer is introduced between the organic layer and the Ag electrode for improving the performance of the low-cost inverted polymer solar cells hybridized with ZnO nanorods.

TL;DR: In this article, the authors report on highly flexible organic light-emitting diodes based on ZnS/Ag/WO 3 (ZAW) multilayer transparent electrodes.

TL;DR: In this paper, the authors developed a full description of the mobility in a correlated Gaussian DOS (extended correlated disorder model, ECDM), using a master-equation method.

TL;DR: In this paper, the difference in device performance of top and bottom contact organic thin film transistors (OTFTs) was investigated by combining experiments and two-dimensional device simulations.

TL;DR: In this paper, a poly(3-hexylthiophene) (P3HT) donor and (6,6)-phenyl-C61-butyric acid methyl ester (PCBM) acceptor are fabricated by blade coating in toluene solution.

TL;DR: In this paper, a multilayer coated fiber-based substrate combining sufficient barrier and printability properties for printed functional devices was developed using reel-to-reel techniques, and a hygroscopic insulator field effect transistor (HIFET) was successfully printed on the multi-layer-coated paper.

TL;DR: In this paper, the authors demonstrated top-gate polymer field effect transistors (FETs) with ultra-thin (30-50nm) crosslinkable polymer gate dielectrics based on blending an insulating base polymer such as poly(methyl methacrylate) with an organosilane crosslinking agent, 1,6-bis(trichlorosilyl)hexane.

TL;DR: In this paper, the electron affinity of organic molecules in solids is calculated using density functional theory (DFT) and solvation correction using polarizable continuum model, which shows excellent correlation with experimental values obtained from inverse photoemission spectroscopy.

TL;DR: In this article, the authors used P3HT:PCBM (poly(3hexylthiophene):[6,6]-phenyl C61 butyric acid methyl ester) solar cells with high conductivity PEDOT:PSS top electrodes are used to study degradation.

TL;DR: In this paper, bis-triisopropylsilylethynyl (TIPS pentacene) films were fabricated with a newly designed system for controlled solution casting with adjustable nitrogen flow and deposition temperature.

TL;DR: In this article, a solution-processed top electrode for large area organic electronic devices is demonstrated, which is spray-coated directly on top of an inverted bulk-heterojunction organic solar cell through a shadow mask.

TL;DR: In this paper, the use of polyfluorene derivative (WPF-oxy-F) as the cathode interfacial layer was investigated for low-cost and high-efficiency organic solar cells (OSCs) based on poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM).

TL;DR: In this paper, the authors discuss the topographical and nanomorphological aspects of spray deposited organic photovoltaics and show that the solvent properties have a massive impact on the topography, but less on the nanomorphology formation of composites based on the electron donor poly(3hexylthiophene) (P3HT) and the electron acceptor [6,6]-phenyl C61 butyric acid methyl ester (PCBM).

TL;DR: Inverted polymer solar cells using non-vacuum processed spraycoated silver nanoparticles (Ag-NPs) as the anode electrode were compared to vacuum deposited Ag electrodes.

TL;DR: In this paper, three new asymmetric light emitting organic compounds were synthesized with diphenylamine or triphenylamines side groups; 10-(3,5-diphenylphenyl)-N,N-Diphenylonthracen-9-amine (MADa), 4-(10-(3-5-dimethylphenyl)anthracen 9-yl)N, N-DIPhenyloniline (MATa), and TATa (TATa), which had a PL max at 463-nm in

TL;DR: In this article, a red organic light-emitting diodes (OLEDs) incorporating 2,7-bis(diphenylphosphoryl)-9-[4-(N,N-diphenylamino)phenyl]-9-phenylfluorene (POAPF) as the host material doped with the osmium phosphor was presented.

TL;DR: In this article, thin films of partially oxidised multi-wall and single-wall carbon nanotubes are shown to facilitate hole-extraction in efficient (similar to 2.7%) bulk-heterojunction organic solar cells based on poly(3hexylthiophene) (P3HT): [6,6]-phenyl-C-61 butyric acid methyl ester (PCBM) blends.

TL;DR: In this article, the performance of low-voltage pentacene organic field effect transistors (OFETs) with different gate dielectric interfaces is compared and their performance in terms of electrical properties and operational stability is compared.