摘要:
The present invention relates to oligomers of the formula (I), and their use as organic semiconductor in organic devices, especially in organic photovoltaics (solar cells) and photodiodes, or in a device containing a diode and/or an organic field effect transistor. High efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the oligomers according to the invention are used in organic field effect transistors, organic photovoltaics (solar cells) and photodiodes.
摘要:
Embodiments of the invention are directed to a transparent up-conversion device having two transparent electrodes. In embodiments of the invention, the up-conversion device comprises a stack of layers proceeding from a transparent substrate including an anode, a hole blocking layer, an IR sensitizing layer, a hole transport layer, a light emitting layer, an electron transport layer, a cathode, and an antireflective layer. In an embodiment of the invention, the up-conversion device includes an IR pass visible blocking layer,
摘要:
The invention relates to novel polymers containing one or more benzo[1,2-b:4,5-b']dithiophene-4,8-dione repeating units, methods for their preparation and monomers used therein, blends, mixtures and formulations containing them, the use of the polymers, blends, mixtures and formulations as semiconductor in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, and to OE and OPV devices comprising these polymers, blends, mixtures or formulations.
摘要:
The present invention provides a novel methanofullerene derivative applicable as an organic semiconductor material in electronics devices such as organic FETs and electroluminescence devices and solar cells, represented by formula (I) wherein the average value of 13 C-NMR chemical shift values of carbons C 2 and C 2' on FL, bonded to C 1 is 80.10 ppm or greater, wherein FL represents fullerenes, X1 and X2 are each an aromatic hydrocarbon, an alkyl group or the like, C 2 and C 2 , are carbon atoms on FL, bonded to C 1 , and n is an integer of 1 to 10.
摘要:
Methods, compositions and devices relate to photovoltaic cells having a photoactive layer (106) and constituents synthesized and utilized for the photoactive layer. The photovoltaic cells incorporate photoactive materials produced from dyads formed into an initial layer and then thermally cleaved to provide the photoactive layer. Cleavage of the dyads, such as synthesized fullerene anthracen- 2 -ylmethyl 3 - (thiophen-3 -yl) acetate dyads, or polymers of the dyads into separate molecules providing donors and acceptors facilitates in obtaining the photovoltaic cells with desired arrangement and interspacing of the donors and the acceptors relative to one another.
摘要:
The fabrication and characterization of large scale inverted organic solar array fabricated using all-spray process is disclosed. Solar illumination has been demonstrated to improve transparent solar photovoltaic devices. The technology using SAM has potential to revolute current silicon-based photovoltaic technology by providing a complete solution processable manufacturing process. The semi-transparent property of the solar module allows for applications on windows and windshields. The inventive modules are more efficient than silicon solar cells in artificial light environments. This significantly expands their use in indoor applications. Additionally, these modules can be integrated into soft fabric substances such as tents, military back-packs or combat uniforms, providing a highly portable renewable power supply for deployed military forces.
摘要:
The present invention relates to copolymers for solar cells based on acridonic units comprising: a monomeric unit (A) having general formula (I) wherein X is S or Se, Y is 0, S or NR′ and R′, R′, the same or different, are C4-C24 alkyl groups, aryl groups optionally substituted with other functional groups, acyl groups or thioacyl groups; at least one monomer unit (B) having general formula (II) wherein Z is 0, S, Se or N—R″, wherein R″ is a C4-C24 alkyl group, an aryl group op-tionally substituted with other functional groups, an acyl group or thioacyl group, said monomeric unit (B) being connected to any position available of a hetero-aromatic side ring of the unit (A) through one of the two positions indicated by the dashed lines in general formula (II). Photovoltaic devices comprising said alternating &pgr;-conjugated polymers are also described.