Abstract:
The present invention relates to process comprising reacting a polyfluorenes comprising at least one structural group of formula I with an iridium (III) compound of formula II wherein, R1 and R2 are independently alkyl, substituted alkyl, aryl, substituted aryl or a combination thereof; R5 is H or CHO; R3 and R4 are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl or a combination thereof; R11 and R12 taken together form a substituted or unsubstituted monocyclic or bicyclic heteroaromatic ring; R13 is independently at each occurrence halo, nitro, hydroxy, amino, alkyl, aryl, arylalkyl, alkoxy, substituted alkoxy, substituted alkyl, substituted aryl, or substituted arylalkyl; Ar is aryl, heteroaryl, substituted aryl, substituted heteroaryl, or a combination thereof; X is selected from a direct bond, alky, substituted alkyl, and combinations thereof; Y is CHO or NH2; Z is CHO or NH2 where Z does not equal Y; and p is O, 1 or 2. The invention also relates to the polyfluorenes, which are products of the reaction, and the use of the polyfluorenes in optoelectronic devices.
Abstract:
Polymers including at least one structural unit derived from a compound of Formula (I) or including at least one pendant group of Formula (II) may be used in optoelectronic devices, wherein R 1 , R 3 , R 4 and R 6 are independently hydrogen, alkyl, alkoxy, oxaalkyl, alkylaryl, aryl, arylalkyl, heteroaryl, substituted alkyl; substituted alkoxy, substituted oxaalkyl, substituted alkylaryl, substituted aryl, substituted arylalkyl, or substituted heteroaryl; R 1a is hydrogen or alkyl; R 2 is alkylene, substituted alkylene, oxaalkylene, CO, or CO 2 ; R 2a is alkylene; R 5 is independently at each occurrence hydrogen, alkyl, alkylaryl, aryl, arylalkyl, alkoxy, carboxy, substituted alkyl; substituted alkylaryl, substituted aryl, substituted arylalkyl, or substituted alkoxy, X is halo, triflate, -B(OR 1a ) 2 , or Formula (III) located at the 2, 5- or 2, 7- positions; and L is derived from phenylpyridine, tolylpyridine, benzothienylpyridine, phenylisoquinoline, dibenzoquinozaline, fluorenylpyridine, ketopyrrole, 2-(1-naphthyl)benzoxazole)), 2-phenylbenzoxazole, 2-phenylbenzothiazole, coumarin, thienylpyridine, phenylpyridine, benzothienylpyridine, 3-methoxy-2-phenylpyridine, thienylpyridine, phenylimine, vinylpyridine, pyridylnaphthalene, pyridylpyrrole, pyridylimidazole, phenylindole, derivatives thereof or combinations thereof.
Abstract:
A light-emitting device comprises a stack of organic electroluminescent (EL) elements (100, 200), wherein an organic EL element in the stack overlaps at least a portion of another organic EL element, and the organic EL elements are electrically separate (50). Each of the organic EL elements of the stack is activated with a different level of voltage (110, 210).
Abstract:
Energy efficient optoelectronic devices include an electroluminescent layer containing a polymer made up of structural units of formula I and II; wherein R1 and R2 are independently C22-44 hydrocarbyl, C22-44 hydrocarbyl containing one or more S, N, O, P, or Si atoms, oxaalkylaryl, or a combination thereof; R3 and R4 are independently H, C1-44 hydrocarbyl or Ci-44 hydrocarbyl containing one or more S, N, O, P, or Si atoms, or R3 and R4, taken together, form a C2-10 monocyclic or bicyclic ring containing up to three S, N, O, P, or Si heteroatoms; and X is S, Se, or a combination thereof.
Abstract:
Provided are organic device packages configured to limit current flow through shorted sub-elements in the organic device. In some embodiments, the organic device package may include multiple elements, each having multiple sub-elements connected in parallel. Each element may have a first electrode patterned into thin electrode strips connected in parallel, and each of the electrode strips may be an electrode of one of the multiple sub-elements. The electrode strips may have a resistance which may be higher than the overall resistance of other sub-elements in the element, such that a current flowing to the element may be substantially limited from flowing through a shorted sub-element in the element. Each element may also be connected in series to another element in the organic device package, and one or more series- connected elements may also be connected in parallel within the package.
Abstract:
Optoelectronic devices include triplet blocking compounds of formula I wherein R 1 is, independently at each occurrence, C 1-20 hydrocarbyl and at least one of R 1 is R 3 ; R 2 is independently at each occurrence C 1-20 hydrocarbyl, C 1-20 hydrocarbyloxy, C 1-20 thioether, C 1-20 hydrocarbylcarbonyloxy or cyano; R 3 is -R 4 XR 5 ; R 4 is a direct bond, C 1-20 aryl, C 1-20 arylalkyl, C 1-20 alkylaryl, C 1-20 substituted aryl, C 1-20 substituted arylalkyl, or C 1-20 substituted alkylaryl; R 5 is C 1-20 hydrocarbyl or C 1-20 hydrocarbyl containing at least one S, N, O or P atom between carbon atoms; R 6 is C 1-20 alkyl or C 1-20 substituted alkyl; X is -O-, -S-, -COO-, -00C-, -CSS-, -SSC-, NR 6 or PR 6 ; a is independently at each occurrence 0, 1 or 2; and n is 0 or 1.
Abstract:
The present invention provides compositions comprising at least one novel organic iridium compound which comprises at least one cyclometallated ligand and at least one ketopyrrole ligand. The organic iridium compositions of the present invention are referred to as Type (1) organic iridium compositions and are constituted such that no ligand of the novel organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (1) organic iridium compositions are referred to herein as comprising "organic iridium complexes". The novel organic iridium compositions are useful in optoelectronic electronic devices such as OLED devices and photovoltaic devices. In one aspect, the invention provides novel organic iridium compositions useful in the preparation of OLED devices exhibiting enhanced color properties and light output efficiencies.
Abstract:
Disclosed is a polymer composition derived from a bis-phenol comprising a conjugated aromatic radical, optionally comprising nitrogen. Suitable bis-phenols as well as methods for making said polymer are also disclosed. Also disclosed are electroactive layers comprising said polymer and electroactive devices comprising said layer.
Abstract:
Monodentate gold ethynyl complexes having a gold-carbon bond and a gold-phosphorous bond, specifically, of formula I, may be useful in optoelectric devices, wherein Ar 1 and Ar 2 are independently monocyclic or polycyclic aryl, unsubstituted or substituted with one or more alkyl, alkenyl, alkoxy, aryl, aryloxy, fluoro, fluoroalkyi, or perfluoroalkyl; and R is substituted or unsubstituted aryl.
Abstract:
One or more embodiments include a light module having a reflective light source having one or more organic light emitting diode (OLED) elements. The reflective light source reflects light from other light sources and/or emits light when powered. The reflective light source includes control circuitry which senses the amount of light reflected or emitted and powers the light source based on an intensity of the sensed reflected or emitted light. In one embodiment, the reflective light source is used with a primary light source in the light module which may be in the form of a flourescent light, direct sunlight, or diffuse daylight. The reflective light source reflects portions of light from the primary light source while the control circuitry senses an interruption or decrease in the power supplied to the primary light source and powers the secondary light source from an uninterruptible power source such as a battery.