摘要:
Disclosed herein is a photovoltaic cell comprising an absorber that can absorb electromagnetic radiation; a first substrate comprising a first conductive surface; a second substrate comprising a second conductive surface that is opposed to the first conductive surface and faces the first conductive surface of the first substrate; an electron transporter that is in electrical communication with the second conductive surface of the second substrate, but is electrically insulated from the first substrate; a hole transporter that is in electrical communication with the first conductive surface of the first substrate, but is electrically insulated from the second substrate; wherein the hole transporter and/or the electron transporter are chemically bonded to an electrically insulating sheath; and wherein the hole transporter and/or the electron transporter are chemically bonded to the absorber.
摘要:
Described herein is an organic opto-electronic device comprising a cathode comprising at least one zero-valent metal; an anode; an opto-electronically active organic material; wherein said cathode is in contact with at least one organic ammonium salt. In certain embodiments, the organic ammonium salt has structure (I) wherein R1-R4 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 cycloaliphatic radical, or a C3-C20 aromatic radical is disclosed and wherein X+ is selected from the group consisting of monovalent inorganic anions, monovalent organic anions, polyvalent inorganic anions, polyvalent organic anions, and mixtures thereof.
摘要:
Described herein is an organic opto-electronic device comprising a cathode comprising at least one zero-valent metal; an anode; an opto-electronically active organic material; wherein said cathode is in contact with at least one organic phosphonium salt. In certain embodiments, the organic phosphonium salt has structure (I) wherein R1-R4 are independently at each occurrence a C1-C20 aliphatic radical, a C3-C20 cycloaliphatic radical, or a C3-C20 aromatic radical is disclosed and wherein X− is selected from the group consisting of monovalent inorganic anions, monovalent organic anions, polyvalent inorganic anions, polyvalent organic anions, and mixtures thereof.
摘要:
An electrooptic device and a surface modified electrode comprising a reduced organic material are provided. The reduced organic materials lower the work function of an electrode surface; they are also electro-active. These capabilities facilitate their use in production of more efficient electrooptic devices. The electrooptic device has at least a first conductive layer, a second conductive layer, and an electro-active layer comprising the reduced organic material disposed between the first and second conductive layers. The surface modified electrode comprises at least one conductive layer and at least one reduced organic material disposed upon a surface of said conductive layer. Methods for using the organic electro-active material for producing electrooptic devices, and operating the electrooptic devices are also disclosed. Coating compositions and coated articles comprising the reduced organic materials are also provided.
摘要:
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.
摘要:
A charge transfer-promoting material comprises a material having a formula selected from the group consisting of AM, An−Mn+ and {A-R3}n−Mn+; wherein A is a fused ring radical having from 2 to 4 rings, inclusive; crown ethers; cryptands; or macrocyclic polyamines; M is a metal; R3 is selected from the group consisting of alkoxy silane, carboxylic acid, thiol, amine, phosphine, amide, imine, ester, anhydride, and epoxy, and is covalently attached to A; and n is an integer number selected from the group consisting of 1, 2, and 3. Electronic devices comprise such a charge transfer-promoting material for enhancing the charge injection or transport between an electrode and an electronically active material.
摘要翻译:电荷转移促进材料包括具有选自AM,A,N,N,N +和/ n sup> M + n + 其中A是具有2至4个环的稠环基团,包括端值; 冠醚; 穴居人 或大环多胺; M是金属; R 3选自烷氧基硅烷,羧酸,硫醇,胺,膦,酰胺,亚胺,酯,酸酐和环氧基,并且共价连接到A上; 并且n是选自1,2和3的整数。电子器件包括用于增强电极和电子活性材料之间的电荷注入或传输的这种电荷转移促进材料。
摘要:
Described herein is a transparent electrode comprising at least one optically transparent electrically conductive layer; and at least one optically transparent intermediate layer, wherein said optically transparent conductive layer is in contact with said optically intermediate layer, and wherein said optically transparent conductive layer and said optically transparent intermediate layer together transmit at least 50 percent of incident light having a wavelength in a range between about 200 and about 1200 nanometers, said optically transparent conductive layer having a bulk conductivity at least 100 Siemens per centimeter (S/cm), said optically transparent intermediate layer being comprised of a material having a bulk electrical conductivity at room temperature less than 10−12 Siemens per centimeter and a band gap of 3.5 eV. Described herein are also methods for forming a transparent electrode, and transparent electronic devices comprising at least one transparent electrode.
摘要:
Novel metal porphyrin compositions useful as organic phosphors are provided. The novel compositions are prepared from commercially available porphyrin-containing starting materials. In one instance a novel palladium-containing porphyrin composition having a number average molecular weight of greater than 12,000 grams per mole was prepared from 5,10,15,20-tetrakis(3′,5′-di(hydroxy)phenyl)-21H-23H-porphyrin by reaction first with palladium(II) acetylacetonate, followed by reaction with 2-bromo-2-methylpropionyl bromide, and subsequent group transfer reaction of the alpha-bromo ester groups with 9,9-dioctyl-2-vinylfluorene in the presence of CuBr as a radical initiator. The product polymer exhibited a number average molecular weight of 12,884 grams per mole, a weight average molecular weight of 14,338 grams per mole, and a robust red phosphorescent emission. Porphyrin containing copoylmers comprising structural units derived from 9,9-dioctyl-2-vinylfluorene and 9-anthracenylmethyl methacrylate were prepared in a similar fashion.
摘要:
Crosslinking between polymer chains having olefin groups occurs by heating the polymer chains in the presence of a catalyst. Mixtures of polymer and catalyst can be dried and cast into films at ambient temperatures and remain non-crosslinked and soluble for extended periods. However, upon heating of the polymer to temperatures of about 300° C. or greater in the presence of a catalyst, the polymer chains of the film are cured to produce an insoluble crosslinked matrix. The sudden and relatively complete nature of the crosslinking between the polymers under specific conditions is particularly useful to allow chromophores poled in a noncrosslinked polymer mixture to retain their uniform orientation after crosslinking has occurred.
摘要:
Optoelectronic devices include polysiloxanes derived from hydrosilation of an organometallic compound of formula L2MZ, wherein L and Z are independently bidentate ligands; at least one of L and Z comprises alkenyl, alkenylaryl, alkenyloxy, alkenyloxyaryl, alkynyl, alkynylaryl, alkynyloxy, alkynyloxyaryl, substituted alkenyl, substituted alkenylaryl, substituted alkenyloxy, substituted alkenyloxyaryl, substituted alkynyl, substituted alkynylaryl, substituted alkynyloxy, substituted alkynyloxyaryl, acrylate, methacrylate, or a combination thereof; and M is Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, Ga, Ge, In, Sn, Sb, Tl, Pd, Bi, Po, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Lu.