Abstract: According to an aspect of the present invention, there is provided a compound semiconductor solar cell, comprising: a light absorbing layer comprising a compound semiconductor; a first electrode positioned on a front surface of the light absorption layer; a first contact layer positioned between the light absorbing layer and the first electrode; a second electrode positioned on a rear surface of the light absorbing layer and having a sheet shape; and a second contact layer positioned between the light absorbing layer and the second electrode. The second contact layer is partially formed on the rear surface of the light absorbing layer on the projection surface, and the second electrode includes a first portion in direct contact with the second contact layer and a second portion located between the first portions.

Abstract: Provided is a thermoelectric conversion module having a high heat resistance. The thermoelectric conversion module includes a first substrate, a second substrate, a thermoelectric element, and a bonding layer. The first substrate includes a first metalized layer. The second substrate includes a second metalized layer which faces the first metalized layer. The thermoelectric element includes a chip formed from a thermoelectric material and is arranged between the first metalized layer and the second metalized layer. The bonding layer is composed of a sintered body of a metallic material of which the average crystal particle diameter is no greater than 20 ?m and bonds the first metalized layer and the second metalized layer with the thermoelectric element.

Abstract: A light-emitting element containing a light-emitting material and having high light emission efficiency is provided. The light-emitting element includes a host material and a guest material. The host material includes at least a first molecule and a second molecule having the same molecular structure. The guest material has a function of exhibiting fluorescence or converting triplet excitation energy into light emission. The first molecule and the second molecule each include a first skeleton, a second skeleton, and a third skeleton, and the first skeleton and the second skeleton are bonded to each other through the third skeleton. The first skeleton includes at least one of a ?-electron rich heteroaromatic skeleton and an aromatic amine skeleton and the second skeleton includes a ?-electron deficient heteroaromatic skeleton. The first molecule and the second molecule have a function of forming an excited complex.

Abstract: This disclosure generally relates to lightweight thermionic microengines for aerial vehicles. The aerial vehicles include a propulsion system. The propulsion system includes a combustor. The propulsion system further includes a thermionic generator that receives heat from the combustor and generates electricity. The propulsion system further includes one or more propulsion motors that receive the electricity generated by the thermionic generator. The propulsion motors may provide power to one or more propellers to generate lift and thrust for a UAV.

Abstract: An electrochemical tongue can be used for detection of metal ions. The reference electrode of the electrochemical tongue can be coated with a polymer. More than one reference electrode can be used, and the electrochemical tongue can be inserted into a cone penetrometer for portable, in situ analysis.

Abstract: A thermoelectric conversion module includes a module main body having a length direction and a height direction which is perpendicular to the length direction. The module main body include a row of alternating first and second thermoelectric conversion elements each of which is elongated in the height direction and has upper and lower surfaces. First and second electrodes are connected to respective ones of the plurality of first and second thermoelectric conversion elements. An insulator covers both the upper and lower surfaces of the first and second thermoelectric conversion elements. A lower heat transfer plates is provided on the lower part of the insulator 13 and an upper heat transfer plate is provided on the upper part of the insulator.

Abstract: Organic light emitting devices incorporating a film of metal complex emitters that are oriented with their transition dipole moment vectors oriented parallel to the device substrate enhances the outcoupling and eliminate the need for micro-lens arrays, gratings, or other physical extraneous outcoupling methods.

Abstract: A polymer compound comprising a constitutional unit represented by the following formula (1) and a constitutional unit represented by the following formula (X) and/or a constitutional unit represented by the following formula (Y), wherein the content of the hydroxyl groups contained in the polymer compound is less than 0.02 mol %: Ar1??(1) [wherein, Ar1 represents an arylene group and this group optionally has a substituent.] [wherein, aX1 and aX2 each independently represent an integer of 0 or more. ArX1 and ArX3 each independently represent an arylene group or a divalent heterocyclic group and these groups each optionally have a substituent. ArX2 and ArX4 each independently represent an arylene group, a divalent heterocyclic group or a divalent group in which at least one arylene group and at least one divalent heterocyclic group are bonded directly to each other, and these groups each optionally have a substituent.

Abstract: There is provided a compound having Formula I In Formula I: E1-E4 are CH, CD, or N, where one and only one of E1-E4 is N; Ar1 is an N-heterocycle or a deuterated N-heterocycle; Ar2 is aryl, heteroaryl, diarylamino, or deuterated analogs thereof; R1 and R2 are the same or different and are D, alkyl, silyl, aryl, heteroaryl, deuterated alkyl, deuterated silyl, deuterated aryl, or deuterated heteroaryl; and a and al are the same or different and are integers from 0-3.

Abstract: Solar cells that include quantum dots are provided. In particular, a solar panel is provided, the solar panel comprising: a first solar cell comprising: a first set of quantum dots in a first semiconductor, the first semiconductor configured to receive one or more of ambient light and sunlight and emit first wavelengths a first range of about 450 nm to about 480 nm, the first set of quantum dots configured to convert the first wavelengths to a first electric output; and, a second solar cell comprising: a second set of quantum dots in a second semiconductor, the second semiconductor configured to receive one or more of the ambient light and the sunlight and emit second wavelengths a second range of about 600 nm to about 700 nm, the second set of quantum dots configured to convert the second wavelengths to a second electric output.

Abstract: A drive shaft includes an extruded internal tube having teeth formed thereon. The drive shaft also includes an extruded external tube having teeth formed therein and coaxially receiving the internal tube. The teeth of the internal tube engaging the teeth of the external tube, wherein the internal tube and the external tube are aluminum.

Abstract: An electric generator device is provided that includes a thermoelectric array, a base plate, and an electric power output. The thermoelectric array may include a hot side portion and a cold side portion. The base plate may be configured to receive heat from a heat source to be transferred to the hot side portion of the thermoelectric array. The electric power output may be electrically coupled to the thermoelectric array. The thermoelectric array may be configured to convert a temperature differential into an electric voltage for output to the electric power output. The power generation housing may be configured to hold a heat rejection substance that absorbs heat from the cold side portion of the thermoelectric array to facilitate generation of the temperature differential between the hot side portion and the cold side portion of the thermoelectric array.

Abstract: In some aspects, graphic layers for depicting a visible representation of an image along a surface of a photovoltaic module can include a plurality of substantially opaque isolated regions; and at least one substantially transparent contiguous region surrounding the substantially opaque isolated regions, wherein an outer surface of the at least one substantially transparent contiguous region comprises a matte surface finish.

Abstract: A phase-locked loop (PLL) comprising a multi-band oscillator and a memory configured to store control input for the oscillator. The PLL is operable in a calibration mode in which the PLL is configured to acquire a frequency controlled word (FCW) for the PLL corresponding to a frequency generated by the oscillator in response to a first control input threshold on a first band of the oscillator; generate a frequency corresponding to said FCW on a second band of the oscillator adjacent to said first band; identify a second control input causing the oscillator to generate said frequency corresponding to said FCW and store said second control input in memory.

Abstract: The present invention relates to a solar photovoltaic assembly. The solar photovoltaic assembly, according to the invention, includes a solar panel, an input junction box, and an output junction box. The input junction box includes a first diode, a first electric connection body connected to the first diode, and first foils respectively spliced with the first electric connection body. The input junction box is positioned on a side of the second solar panel. The output junction box includes a second diode, a second electric connection body connected to the second diode, and second foils respectively spliced with the second electric connection body. The output second junction box positioned on another side of the solar panel. The input junction box mechanically and electrically connects to a second output junction box on a connecting solar panel using a cable.

Abstract: A solar cell module is disclosed. The solar cell module includes a plurality of solar cells receiving light from the outside and producing electricity, a conductive line connected to an adjacent pair of the plurality of solar cells and electrically connecting the adjacent pair of the plurality of solar cells to one another, a front transparent substrate disposed on front surfaces of the plurality of solar cells and on the conductive line and transmitting light, and a back sheet disposed on back surfaces of the plurality of solar cells and on the conductive line. The back sheet has the same based color as a color of the conductive line when viewed from a front of the solar cell module.

Abstract: Aniline derivatives such as those represented by the formula shown, for example, have good solubility with respect to organic solvents, and are able to provide an organic electroluminescent element having excellent luminance characteristics when a thin film containing said aniline derivatives is used as a charge transporting substance in a hole injection layer. (In the formula, DPA represents a diphenylamino group.

Abstract: A solar cell module is discussed. The solar cell module includes a solar cell panel and an integrated type inverter positioned at a back surface of the solar cell panel. The integrated type inverter includes a circuit unit having a terminal connected to the solar cell panel and an inverter member having a DC-AC inverter electrically connected to the terminal, and a receiving unit receiving the terminal and the DC-AC inverter, the receiving unit having at least one open surface. One of the open surfaces of the receiving unit is covered by the solar cell panel.

Abstract: A system and method for energy harvesting in a data center has one or more collection devices, a thermoelectric device, and a controller for directing the operation of the thermoelectric device and other equipment in the data center. The waste heat generated by the servers in the data center is harnessed and directed into the thermoelectric device where the waste heat is converted to usable electrical energy under the direction of the controller. The recycled electrical energy is then combined with utility-input power and provided to the servers and other equipment in the data center for consumption.

Abstract: The present specification relates to an organic electronic device including a fullerene derivative.