OLED
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Recent papers in OLED
The automotive industry is in a transformational stage in lighting, with several new technologies coming to the market that offer improved performance, safety and aesthetics in the age of autonomous vehicles. This brand new eBook looks... more
The interest in organic materials for use in organic light-emitting diodes (OLEDs) began with the pioneering report of efficient green electroluminescence from Alq 3 , tris(quinolin-8-olato)aluminum(III), by Tang and Van Slyke [C.W. Tang,... more
We report highly efficient red phosphorescent organic light-emitting diodes with a triplet p-i-n single quantum well (QW) structure. This p-i-n single QW structure is realized using p-doped and n-doped wide band-gap hole and electron... more
The aim of this publication is to present a general strategy to engineer more efficient photoluminescent dendritic molecules based on polyhedral oligomeric silsesquioxane (POSS) cores. A series of chromophores were grafted on POSS cores... more
In the last decades, several studies aimed at assessing some specified aspects of visual comfort characterizing the relationship between the human needs and the light environment, such as an available amount of light, light uniformity,... more
Optical microscope and FIB were widely used to find out defect locations in display panels. But failure analysis of LTPS TFTs is getting more difficult to detect the locations than that of (a-Si:H) TFTs. We adopted FIB and EMMI tool and... more
This lecture forms part of the 'Next Generation User Interfaces' course given at the Vrije Universiteit Brussel.
ZnO nanoparticles (ZnO-NPs) were prepared by a sol–gel combustion method from a zinc acetate precursor and acetic acid. The ZnO-NPs were synthesized at calcination temperatures of 650 °C and 750 °C for 1 h. The synthesized ZnO-NPs were... more
This work provides the synthesis, structural characterization, electrochemical and photophysical features, as well as the application in light-emitting electrochemical cells (LECs) of a novel heteroleptic copper(I) complex –... more
Organic devices can have important advantages over traditional inorganic devices. In polymers, such as in small molecules, the molecular conformation and microstructure significantly influences transport properties of the devices.
a b s t r a c t ZnO nanoparticles (ZnO-NPs) were prepared by a solegel combustion method from a zinc acetate precursor and acetic acid. The ZnO-NPs were synthesized at calcination temperatures of 650 C and 750 C for 1 h. The synthesized... more
A promising class of blue-violet emitters based on a new functional core, the indenopyrazine group, has successfully been synthesized for the first time by substitution with bulky m-terphenyl side groups in the ortho, meta, or para... more
A scalable process for manufacturing electronic backplanes suitable for large-area OLED displays utilizing small isolated regions of single-crystal silicon (SCS) on arbitrary substrates has been demonstrated. Planarized SCS particles form... more
A 20-in. OLED display driven by an amorphous-silicon backplane has been demonstrated. It has been widely believed that the characteristics of amorphous-silicon TFTs are not sufficient to drive OLED display. This paper challenges this... more
- by Paul Andry
- Television, OLED, Tft
Nowadays, the design and development of novel phosphorescent iridium(III) complexes for various opto-electronic applications is a well-recognized area of research. The fascinating photophysical properties of iridium(III) compounds are... more
We report the performance of OLED devices with a configuration of FTO/sorbitol-PEDOT:PSS (60 nm)/TPD (50 nm)/Alq 3 (40 nm)/Al (120 nm) and FTO/plain-PEDOT:PSS (60 nm)/TPD (50 nm)/Alq 3 (40 nm)/Al (120 nm) prepared from... more
Using a 4,4 0 ,4 00 -tris(N-carbazolyl)-triphenylamine (TCTA) small molecule interlayer, we have fabricated efficient green phosphorescent organic light emitting devices by solution process. Significantly a low driving voltage of 3.0 V to... more
The impact of linking topology of fluorene-carbazole triads on amplified and spontaneous emission as well as on concentration quenching of emission and charge carrier mobility, i.e. on the properties essential for organic laser... more
Two new stepladder conjugated polymers, that is, poly(7,7,15,15-tetraoctyldinaphtho[1,2-a:1 0 ,2 0 -g]-s-indacene) (PONSI) and poly (7,7,15,15-tetra(4-octylphenyl)dinaphtho[1,2-a:1 0 ,2 0 -g]-s-indacene) (PANSI) with alkyl and aryl... more
Organic light-emitting diodes (OLEDs) were investigated by an electron paramagnetic resonance (EPR) technique that uses the effective device conductance as the detection channel. This technique enables us to identify and study charge... more
In this paper, the relationship between exciton recombination zone and applied voltage in organic light-emitting diodes (OLEDs) ITO/NPB (40 nm)/Alq 3 (w nm)/rubrene(3 nm)/Alq 3 (50Kw)/Al, in which a 3 nm rubrene as sensing layer is... more
A direct gravure printing process for UV-curable indium tin oxide (ITO) nanoparticle patterns on polyethylene terephthalate and polyethylene naphthalate foils is presented for use as transparent electrodes. Both large-area coatings and... more
The structure of fac-Ir(ppy) 3 has been determined in the gas phase by means of electron diffraction. A new modification (space group P42 1 c) has been obtained by sublimation of the compound at 385°C and its structure been determined by... more
Thin-film light emitting devices based on organic materials have attracted vast interest in applications such as light emitting diode (LED) and flat-panel display. The organic material can be attached with inorganic material to enhance... more
A high-transmittance transflective device based on a hybrid structure consisting of a transparent organic light-emitting diode (OLED) stacked on top of a reflective liquid-crystal device (RLCD) was conceptually demonstrated. By placing... more
Selective laser patterning of thin organic films is an important aspect in the roll-to-roll production of organic electronic devices such as organic light emitting diodes (OLEDs). An excimer laser is well suited for the patterning and... more
In this study we investigated theoretically the electronic structure of [tris-(8-hidroxiquinolinolato) aluminum (III)-Alq 3 , solvation properties of the electroluminescent Alq 3 organic liquids such as methanol and ethanol in order to... more
Ternary system of single layer organic light-emitting diodes (OLEDs) were fabricated containing Tris(8-hydroxyquinoline) aluminum (Alq3) blended with N,N'-diphenyl-N,N'bis(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine (TPD) and... more
ABSTRACTWe studied the surface properties of indium-tin oxide (ITO) modified by wet (aquaregia, ultrasonication, RCA) and dry (oxygen- and argon-plasma) treatments. The surface modification was investigated by surface energy, surface... more
The luminous efficiency of organic light-emitting diodes based on poly(N-vinylcarbazole), PVK, was improved by adding fac-[ClRe(CO) 3 (bpy)], bpy = 2,2 -bipyridine, to PVK host. Emissive layers with various Re(I) complex/host ratio were... more
Absorption, emission, and anisotropy measurements were performed on poly-[2-methoxy-5(2 0ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly-(9,9 0 -dioctylfluorene-2,7-diyl) (PF) solutions of various solvents, and in thin films... more
Two novel efficient blue emitters (TTT-1, TTT-2) containing 1,3,5-triazine, thiophene and triphenylamine have been designed and synthesized. Organic light emitting diodes (OLEDs) using these new triazine derivatives as emissive layers,... more
Tris(8-hydroxyquinoline)aluminum(III), AlQ3, is used in organic light-emitting diodes (OLEDs) as an electron-transport material and emitting layer. The reaction of AlQ3 with trace H 2 O has been implicated as a major failure pathway for... more
The development of 5G (fifth generation) mobile communication systems was initiated to meet the expected need for higher data rates. In this article, a new 28/38 GHz dual-band “inverted-F” array antenna for 5G applications is proposed.... more
5-[(3-Methylphenyl)(phenyl)amino]isophthalic acid (5-MePIFA) and 5-(diphenyl)amino]isophthalic acid (5-DPIFA) organic molecules were synthesized to form self-assembled monolayer on indium tin oxide (ITO) anode to enhance hole transport... more
Density functional theory (DFT) and time-dependent density functional theory (TDDFT) are used to analyse theoretically the optoelectronic, photophysical properties and organic light-emitting diode performance of a series of fac-mer... more
The luminous efficiency of organic light-emitting diodes based on poly(N-vinylcarbazole), PVK, was improved by adding fac-[ClRe(CO) 3 (bpy)], bpy = 2,2 -bipyridine, to PVK host. Emissive layers with various Re(I) complex/host ratio were... more
Three new oxadiazole substituted carbazole derivatives 9-{4-[5-(4-tert-butylphenyl)-[1,3,4] oxadiazol-2-yl]-benzyl}-9 H-carbazole (t-CmOxa), 9-[4-5-phenyl-[1,3,4]oxadiazol-2-yl-benzyl]-9H-carbazole (p-CmOxa) and 9- [4-5-biphenyl-[1,3,4]... more
Light emitting field effect transistors (LEFETs) are emerging as a multi-functional class of optoelectronic devices. LEFETs can simultaneously execute light emission and the standard logic functions of a transistor in a single... more
We have carried out the fabrications of a barrier layer on a polyethersulfon (PES) film and organic light emitting diode (OLED) based on a plastic substrate by means of atomic layer deposition (ALD). Simultaneous deposition of 30 nm AlO x... more
The preparation and properties of the first spirocyclohexane-functionalized bifluorene-based monodispersed molecular materials is described. The obtained compounds were characterized by 1 H NMR, 13 C{ 1 H} NMR, IR, DSC, UV-vis and... more