摘要:
There is disclosed ultrathin film material templating layers that force the morphology of subsequently grown electrically active thin films have been found to increase the performance of small molecule organic photovoltaic (OPV) cells. There is disclosed electron-transporting material, such as hexaazatriphenylene- hexacarbonitrile (HAT-CN) can be used as a templating material that forces donor materials, such as copper phthalocyanine (CuPc) to assume a vertical-standing morphology when deposited onto its surface on an electrode, such as an indium tin oxide (ITO) electrode. It has been shown that for a device with HAT-CN as the templating buffer layer, the fill factor and short circuit current of CuPc:C60 OPVs were both improved compared with cells lacking the HAT-CN template. This is explained by the reduction of the series resistance due to the improved crystallinity of CuPc grown onto the ITO surface.
摘要:
Disclosed herein are organic photosensitive optoelectronic devices comprising two electrodes in superposed relation, a photoactive region located between the two electrodes, wherein the photoactive region comprises a donor mixture and an organic acceptor material, the donor mixture comprising at least one organic polymer donor material and at least one squaraine donor. Methods of fabricating the organic photosensitive optoelectronic devices are also disclosed.
摘要:
There is disclosed a method for preparing the surface of a metal substrate. The present disclosure also relates to an organic photovoltaic device comprising a metal substrate made by such method. Also disclosed herein is an inverted photosensitive device comprising a reflective electrode (110) comprising stainless steel foil, an organic donoracceptor heterojunction (115, 120) over the reflective electrode, and a transparent electrode (130) over the donor-acceptor heterojunction.
摘要:
A solar tracking system for tracking the orientation of solar energy is disclosed. The solar tracking system may be integrated with solar cells and solar concentrators. The solar tracking system may have a first (22) and second (24) tracker module array that are opposite from another, aligned in substantially identical orientation, and form a tracker module pair array (1000). Tracker module pairs (12, 14; 12, 144) may allow motion relative to one another while maintaining substantially identical orientation. Solar concentrators may be attached to opposing tracker modules of a tracker module pair forming an array of solar concentrators. A base bar array (28) may be coupled to at least one tracker module pair. A transmission may operably rotate the base bar array and the tracker module pair array simultaneously.
摘要:
A method of fabricating a multi-junction photosensitive device is provided. The method may include fabricating at least two photoactive layers, wherein at least one photoactive layer is fabricated on a transparent substrate, and at least one photoactive layer is fabricated on a reflective substrate, patterning at least one optical filter layer on at least one photoactive layer fabricated on a transparent substrate, and bonding the at least two photoactive layers using cold weld or van der Waals bonding. A multi-junction photosensitive device is also provided. The device may have at least two photoactive layers, and at least one optical filter layer, wherein at least two layers are bonded using cold weld or van der Waals bonding. The optical filter layer may be a Distributed Bragg Reflector.
摘要:
Disclosed herein are exciton-blocking treatments for buffer layers used in organic photosensitive optoelectronic devices. More specifically, the organic photosensitive optoelectronic devices described herein include at least one self-assembled monolayer disposed on the surface of an anode buffer layer. Methods of preparing these devices are also disclosed. The present disclosure further relates to methods of forming at least one self-assembled monolayer on a substrate.
摘要:
The present disclosure generally relates to chromophoric compounds that combine strong absorption of light at visible wavelengths with the ability to undergo symmetry-breaking intramolecular charge transfer (ICT), and their use for the generation of free carriers in organic photovoltaic cells (OPVs) and electric-field-stabilized geminate polaron pairs. The present disclosure also relates to the synthesis of such compounds, methods of manufacture, and applications in photovoltaic systems and organic lasers.
摘要:
There is disclosed photovoltaic device structures which trap admitted light and recycle it through the contained photosensitive materials to maximize photoabsorption. For example, there is disclosed a photosensitive optoelectronic device comprising: a first reflective layer comprising a thermoplastic resin; a second reflective layer substantially parallel to the first reflective layer; a first transparent electrode layer on at least one of the first and second reflective layer; and a photosensitive region adjacent to the first electrode, wherein the first transparent electrode layer is substantially parallel to the first reflective layer and adjacent to the photosensitive region, and wherein the device has an exterior face transverse to the planes of the reflective layers where the exterior face has an aperture for admission of incident radiation to the interior of the device.
摘要:
An ordered multilayer crystalline organic thin film structure is formed by depositing at least two layers of thin film crystalline organic materials successively wherein the at least two thin film layers are selected to have their surface energies within ± 50% of each other, and preferably within ± 15% of each other, whereby every thin film layer within the multilayer crystalline organic thin film structure exhibit a quasi-epitaxial relationship with the adjacent crystalline organic thin film.