Abstract:
The present disclosure relates to a cellulose-polymer composite solar cell that is substantially biodegradable and fabricated using environmentally friendly materials and methods. The polymer solar cell comprises an electrically conductive cellulose-polymer composite and an electrically semiconductive cellulose-polymer composite.
Abstract:
The present application discloses the preparation of BODIPY-based backbone polymers for use in solar cell devices. Embodiments provide efficient solution-processed bulk heterojunction ("BHJ") polymer/PCBM solar cells with BODIPY-based backbone polymers (pBodipy and pBodipy-T) as the polymer electron donor. In some embodiments of the present application, solar cells exhibit highly efficient light harvesting of the solar spectrum up to ~1.6eV. CV data suggest these BODIPY-based backbone polymers have an optimal energy level alignment for charge separation in contact with PCBM, and deep HOMO levels that result in the high Voc of 0.8 V and efficiency of about 2%.
Abstract:
Disclosed are semiconductor devices (100) containing a polymer dielectric (103) and at least one active device (104) containing an organic semiconductor material (112) and a passive layer (114). Also disclosed are semiconductor devices (100) further containing a conductive polymer (106 and/or 108). Such devices are characterized by light weight and robust reliability.
Abstract:
Dual function diodes based on conjugated organic polymer active layers are disclosed. The device comprises a conductive metal contact (13), preferably fabricated of low work function metal on one side of a semiconductive conjugated polymer film (11). A third layer, electrode (12) is on the other side of the polymer film. This electrode is commonly transparent so that light (19) can pass to and from the active layer (11). These three layers can make up the device but more commonly a transparent substrate (14) is present adjacent to electrode (12). When positively biased the diodes function as light emitters. When negatively biased they are highly efficient photodiodes. Methods of preparation and uses of these diodes in displays and input/output devices are also disclosed.
Abstract:
A process for preparing organic semiconductor, which comprises doping an acetylene high polymer having a fibril structure with a specific electron-accepting compound. Conventional electron-accepting compounds are highly toxic and provide conductive acetylene high polymers which do not always exhibit a sufficiently high electric conductivity, which have a mechanical strength seriously reduced by the doping, and which have an insufficient heat resistance. The use of a specific, the low-toxic electron-accepting compound of the present invention provides a conductive acetylene high polymer having an enhanced electric conductivity and good flexibility and heat resistance. This conductive acetylene high polymer is a p-type semiconductor enabling to freely control the electric conductivity within the range of 10-9 to 103(Alpha)-1(Alpha)cm-1 and is useful as a material for conductive materials, p-n heterojunction elements, and photo-electric transducers such as solar batteries, photosensors, etc.
Abstract:
An organic electroluminescent device includes an anode, a holetransporting layer disposed over the anode, a light-emitting layer disposed over the hole-transporting layer for producing light in response to hole-electron recombination, and an electron-transporting layer disposed over the light-emitting layer. The device also includes a crystallization-inhibitor incorporated within the electron-transporting layer, wherein the crystallization-inhibitor prevents the electron-transporting layer from crystallizing during operation, and a cathode disposed over the electron-transporting layer.
Abstract:
A conjugated molecular assembly includes a substrate (100) and an extended conjugated molecule (120) attached to the substrate, the extended conjugated molecule (120) including a first conjugated molecule (130) having a first functional group (G1) for attaching to the substrate (100), and a second conjugated molecule (140) which is covalently linked to the first conjugated molecule.
Abstract:
A memory cell (104) made of two electrodes(106, 202, 108, 204) with a controllably conductive media between the two electrodes is disclosed. The controllably conductive media (110) contains an active low conductive layer (112) and passive layer (114). The controllably conductive media (110) changes its impedance when an external stimuli such as an applied electric field is imposed thereon. Methods of making the memory devices/cells, methods of using the memory devices/cells, and devices such as computers containing the memory devices/cells are also disclosed.
Abstract:
A conjugated molecular assembly includes a substrate, and an extended conjugated molecule attached to the substrate, the extended conjugated molecule including a first conjugated molecule having a first functional group for attaching to the substrate, and a second conjugated molecule which is covalently linked to the first conjugated molecule.