Abstract: A thermoelectric thin film material including an organic-inorganic hybrid perovskite doped with an organic dopant represented by the general expression ABX3 where A is an A-site cation, B is a B-site cation, and X is a halide anion. A method of making a thermoelectric thin film material including forming an organic-inorganic hybrid perovskite doped with an organic dopant represented by the general expression ABX3 where A is an A-site cation, B is a B-site cation, and X is a halide anion. A thermoelectric device comprising a thermoelectric thin film material.

Abstract: A wireless self-charging power pack including a solution processed conductive thin film integrating a solar cell with a solid-state supercapacitor. Additionally, a method of forming a wireless self-charging power pack including integrating a solar cell with a solid-state supercapacitor by forming a layer of conductive thin film between the solar cell and the solid-state supercapacitor through solution processing of the material forming the conductive thin film.

Abstract: The present invention relates to a modified perovskite comprising a polymer that co-crystalizes with perovskite. In particular instances, the polymer is chosen from poly(ethylene oxide) (PEO) or polyethylenimine (PEI). A modified perovskite film includes an ionic salt; and a perovskite having the formula ABX3, wherein counter anions of the ionic salt interact with A and counter cations interact with X, such that ion migration is suppressed.

Abstract: An organic polymer photo device with broadband response and high photo-responsitivity includes an anode terminal with a hole transporting network, and a cathode terminal with an electron transporting network. Positioned in electrical communication with the hole transporting network and the electron transporting network is a blended material that has at least one organic polymer light absorbing component. The organic light absorbing component is configured to have a collection length that is larger than the distance to the nearest electron transporting network and hole transporting network. As such, the blended material forms a light absorbing area that has a dimension that is greater than the collection length of the organic polymer light absorbing component.

Abstract: Perovskite hybrid solar cells utilize a bulk heterojunction (BHJ) active layer that is formed as a composite of an organometal halide perovskite and a water soluble fullerene, such as A10C60. In alternative embodiments, the BHJ active layer may be formed as a composite of an organometal halide perovskite material and a fullerene, such as PC61BM. Thus, the fullerene acts as an electron extraction acceptor within the BHJ, allowing such solar cells to more efficiently transport the electrons from the fullerene/perovskite interface to a fullerene-based electron transport layer (ETL). As a result, increased fill factor (FF), as well as improvements in the short-circuit current density (JSC) and power conversion efficiency (PCE) are achieved by the solar cells.

Abstract: A PEDOT:PSS film having enhanced thermoelectric properties is doped with DMSO and a binary secondary dopant, such as PEO. The composition of such film causes the ratios of PEDOT in bipolaron states to be increased. As a result, the Seebeck coefficient, the electrical conductivities, and power factor of the film are increased, thereby increasing the efficiency of the film. Thus, a thermoelectric device that uses the film is able to achieve enhanced operating performance.

Abstract: A broad-band photodetector utilizes perovskite hybrid material and quantum dots as light harvesters. In particular, the photodetector is configured so that the structural defects on the surface of a quantum dot layer are passivated with perovskite hybrid material. As a result, the trap states on the surface of the quantum dot material is reduced, allowing leakage currents in the quantum dot material to be significantly reduced. As such, the photodetector is able to achieve broad-band operation, with enhanced photoresponsitivity and detectivity.

Abstract: A PEDOT:PSS film having enhanced thermoelectric properties is doped with DMSO and a binary secondary dopant, such as PEO. The composition of such film causes the ratios of PEDOT in bipolaron states to be increased. As a result, the Seebeck coefficient, the electrical conductivities, and power factor of the film are increased, thereby increasing the efficiency of the film. Thus, a thermoelectric device that uses the film is able to achieve enhanced operating performance.

Abstract: Perovskite hybrid solar cells utilize a bulk heterojunction (BHJ) active layer that is formed as a composite of an organometal halide perovskite and a water soluble fullerene, such as A10C60. In alternative embodiments, the BHJ active layer may be formed as a composite of an organometal halide perovskite material and a fullerene, such as PC61BM. Thus, the fullerene acts as an electron extraction acceptor within the BHJ, allowing such solar cells to more efficiently transport the electrons from the fullerene/perovskite interface to a fullerene-based electron transport layer (ETL). As a result, increased fill factor (FF), as well as improvements in the short-circuit current density (JSC) and power conversion efficiency (PCE) are achieved by the solar cells.

Abstract: A broad-band photodetector utilizes perovskite hybrid material and quantum dots as light harvesters. In particular, the photodetector is configured so that the structural defects on the surface of a quantum dot layer are passivated with perovskite hybrid material. As a result, the trap states on the surface of the quantum dot material is reduced, allowing leakage currents in the quantum dot material to be significantly reduced. As such, the photodetector is able to achieve broad-band operation, with enhanced photoresponsitivity and detectivity.

Abstract: A photodetector includes an active layer formed of an inorganic/organic hybrid perovskite material, such as organometal halide perovskites. The perovskite hybrid photodetector provides low dark-current densities and high external-quantum efficiencies, resulting in a photodetector with enhanced photoresponsivity and detectivity. Advantageously, the perovskite hybrid photodetector may be prepared by solution processing, and is compatible with large-scale manufacturing techniques.

Abstract: A cup has an open cup top, a closed cup bottom, and a cup side wall. A base has a closed base top, a closed base bottom, and a base side wall. A coupling assembly includes a lower coupling plate in the closed base top. The coupling assembly includes an upper coupling plate in the closed cup bottom. The L-shaped projections in the upper coupling plate are adapted to be inserted into apertures in the lower coupling plate for coupling the cup and the base. A sound assembly includes a lowermost sound plate in the closed base bottom. A musical chip is mounted to the lowermost sound plate. A button extending through the base side wall is operatively coupled to the musical chip.

Abstract: A photovoltaic cell has an active area formed electron donor-fullerene conjugated molecules. The electron donor is formed of a polymer, which is conjugated with an electron acceptor, such as fullerene. By conjugating the fullerene, such as C60, with electron donor moieties, such as that of the polymer, double channels are formed therebetween, whereby one channel provides hole transport and the other channel provides electron transport. As a result, the electronic coupling between the fullerene and the electron donor moiety leads to increased short-circuit current density (Jsc) and increased open-circuit voltage (Voc), resulting in high power conversion efficacy (PCE) in the solar cell.

Abstract: A polymer solar cell includes a low temperature, solution-processed metal-oxide thin film, such as molybdenum-oxide (MoOx), as a hole-extraction layer (HEW. The low temperature processing allows the metal-oxide thin film to achieve a smoother surface, which allows the thin film to have enhanced light transparency and increased electrical conductivity over that of conventional PEDOT:PSS thin films. As such, the polymer solar cell, which utilizes the metal-oxide thin film as a hole-extraction layer, is able to achieve enhanced power conversion efficiency over conventional polymer solar cells that use PEDOT:PSS as a hole-extraction layer.

Abstract: An improvement in a method of making a semiconducting device having a hole-collecting electrode includes coating the hole-collecting electrode with a p-type transition metal oxide through a sol-gel process.

Abstract: An organic polymer photo device with broadband response and high photo-responsitivity includes an anode terminal with a hole transporting network, and a cathode terminal with an electron transporting network. Positioned in electrical communication with the hole transporting network and the electron transporting network is a blended material that has at least one organic polymer light absorbing component. The organic light absorbing component is configured to have a collection length that is larger than the distance to the nearest electron transporting network and hole transporting network. As such, the blended material forms a light absorbing area that has a dimension that is greater than the collection length of the organic polymer light absorbing component.

Abstract: Methods, compositions and articles of manufacture involving soluble conjugated polymers are provided. The conjugated polymers have a sufficient density of polar substituents to render them soluble in a polar medium, for example water and/or methanol. The conjugated polymer may desirably comprise monomers which alter its conductivity properties. In some embodiments, the inventors have provided cationic conjugated polymers (CCPs) comprising both solubilizing groups and conductive groups, resulting in conductive conjugated polymers soluble in polar media. The different solubility properties of these polymers allow their deposition in solution in multilayer formats with other conjugated polymers. Also provided are articles of manufacture comprising multiple layers of conjugated polymers having differing solubility characteristics. Embodiments of the invention are described further herein.

Abstract: An improvement in a method of making a semiconducting device having a hole-collecting electrode includes coating the hole-collecting electrode with a p-type transition metal oxide through a sol-gel process.

Abstract: Methods, compositions and articles of manufacture involving soluble conjugated polymers are provided. The conjugated polymers have a sufficient density of polar substituents to render them soluble in a polar medium, for example water and/or methanol. The conjugated polymers may desirably comprise monomers which alter their conductivity properties. The different solubility properties of these polymers allow their deposition in solution in multilayer formats with other conjugated polymers. Also provided are articles of manufacture comprising multiple layers of conjugated polymers having differing solubility characteristics. Embodiments of the invention are described further herein.

Abstract: A photovoltaic cell has an active area formed electron donor-fullerene conjugated molecules. The electron donor is formed of a polymer, which is conjugated with an electron acceptor, such as fullerene. By conjugating the fullerene, such as C60, with electron donor moieties, such as that of the polymer, double channels are formed therebetween, whereby one channel provides hole transport and the other channel provides electron transport. As a result, the electronic coupling between the fullerene and the electron donor moiety leads to increased short-circuit current density (Jsc) and increased open-circuit voltage (Voc), resulting in high power conversion efficacy (PCE) in the solar cell.