An energy harvesting system can be implemented as an electronic device including a photovoltaic (PV) cell, an energy storage element, a load system powered by the energy storage element, and an energy harvesting circuit. To charge the energy storage element, the energy harvesting circuit can generate a pulsed signal representing a result of comparing a voltage of the PV cell to a reference voltage. The pulsed signal activates a switch to establish a first current path through which the PV cell stores magnetic energy in an inductor when the voltage of the PV cell is greater than the reference voltage. The pulse signal deactivates the switch to transfer electrical charge to the energy storage element, through a second current path and using the magnetic energy in the inductor, when the voltage of the PV cell is less than the reference voltage.
Provided is a dye-sensitized photovoltaic cell (DSPC) architecture allows harvesting photons on either side of the cell. Also provided are devices incorporating the cells and methods of fabrication and use. According to various embodiments, the PV cells described herein include a layer that includes a mixture of two sets of particles, small dye-sensitized particles and large particles. The small dye-sensitized particles are smaller than the wavelength of light and so are transparent to it. The dye absorbs lights and initiates a rapid electron transfer. The large particles are larger than the wavelength of light, allowing light to scatter and eventually be harvested.
Certain aspects generally pertain to user interfaces and, more specifically, to mechanical user interfaces that integrate at least one energy harvesting element such as a photovoltaic cell. Certain embodiments pertain to electronic devices. In some cases, an electronic device has a device housing having a front side, a photovoltaic cell housed within the device housing. The photovoltaic cell is configured to receive ambient light and generate electric power to power the electronic device.
The present application discloses stilbene derivative compounds and phenylbenzofuran compositions, useful in the manufacture of dye-sensitized solar cells and other similar technology.
C07D 307/79 - Benzo [b] furansHydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
C07D 307/81 - Radicals substituted by nitrogen atoms not forming part of a nitro radical
C09B 23/10 - Methine or polymethine dyes, e.g. cyanine dyes characterised by the methine chain containing an even number of CH groups
Provided herein are improvements to dye-sensitized photovoltaic cells that enhance the ability of those cells to operate in normal room lighting conditions. These improvements include printable, non-corrosive, nonporous hole blocking layer formulations that improve the performance of dye-sensitized photovoltaic cells under 1 sun and indoor light irradiation conditions. Also provided herein are highly stable electrolyte formulations for use in dye-sensitized photovoltaic cells. These electrolytes use high boiling solvents, and provide unexpectedly superior results compared to prior art acetonitrile-based electrolytes. Also provided herein are chemically polymerizable formulations for depositing thin composite catalytic layers for redox electrolyte-based dye-sensitized photovoltaic cells. The formulations allow R2R printing (involves coating, fast chemical polymerization, rinsing of catalytic materials with methanol) composite catalyst layers on the cathode. In situ chemical polymerization process forms very uniform thin films, which is essential for achieving uniform performance from every cell in serially connected photovoltaic module.
C07D 307/80 - Radicals substituted by oxygen atoms
C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
H01L 51/44 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation - Details of devices
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
8.
Stilbene derivatives for the treatment of CNS and other disorders
The present application discloses stilbene derivative compounds and compositions, and methods for treating ocular diseases, neurological disorders and protein aggregation-related disorders in patients using the compounds and compositions as disclosed herein.
A61K 31/341 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide not condensed with another ring, e.g. ranitidine, furosemide, bufetolol, muscarine
C07C 255/43 - Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms having cyano groups bound to acyclic carbon atoms of a carbon skeleton containing at least one six-membered aromatic ring the carbon skeleton being further substituted by singly-bound nitrogen atoms, not being further bound to other hetero atoms the carbon skeleton being further substituted by singly-bound oxygen atoms
C07D 209/86 - CarbazolesHydrogenated carbazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
C07D 215/54 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen attached in position 3
9.
Stilbene and fused stilbene derivatives as solar cell dyes
The present application discloses stilbene derivative compounds and phenyl-benzofuran compositions, useful in the manufacture of dye-sensitized solar cells and other similar technology.
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
C07D 307/79 - Benzo [b] furansHydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
C07D 307/81 - Radicals substituted by nitrogen atoms not forming part of a nitro radical
C09B 23/10 - Methine or polymethine dyes, e.g. cyanine dyes characterised by the methine chain containing an even number of CH groups
C09B 57/00 - Other synthetic dyes of known constitution
H01L 51/42 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
10.
Solar cell dyes for copper redox based dye sensitized solar cells and combinations thereof
C07D 307/80 - Radicals substituted by oxygen atoms
C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
H01L 51/44 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation - Details of devices
In situIn situ chemical polymerization process forms very uniform thin films, which is essential for achieving uniform performance from every cell in serially connected photovoltaic module.
Provided herein are improvements to dye-sensitized photovoltaic cells that enhance the ability of those cells to operate in normal room lighting conditions. These improvements include printable, non-corrosive, nonporous hole blocking layer formulations that improve the performance of dye-sensitized photovoltaic cells under 1 sun and indoor light irradiation conditions. Also provided herein are highly stable electrolyte formulations for use in dye- sensitized photovoltaic cells. These electrolytes use high boiling solvents, and provide unexpectedly superior results compared to prior art acetonitrile-based electrolytes. Also provided herein are chemically polymerizable formulations for depositing thin composite catalytic layers for redox electrolyte-based dye-sensitized photovoltaic cells. The formulations allow R2R printing (involves coating, fast chemical polymerization, rinsing of catalytic materials with methanol) composite catalyst layers on the cathode. In situ chemical polymerization process forms very uniform thin films, which is essential for achieving uniform performance from every cell in serially connected photovoltaic module.
C07D 307/79 - Benzo [b] furansHydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
C07D 333/60 - Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a chain containing hetero atoms as chain links
C09B 23/00 - Methine or polymethine dyes, e.g. cyanine dyes
C09B 57/00 - Other synthetic dyes of known constitution
14.
SOLAR CELL DYES FOR COPPER REDOX BASED DYE SENSITIZED SOLAR CELLS AND COMBINATIONS THEREOF
A61K 31/343 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide condensed with a carbocyclic ring, e.g. coumaran, bufuralol, befunolol, clobenfurol, amiodarone
C07D 307/81 - Radicals substituted by nitrogen atoms not forming part of a nitro radical
15.
Benzofuran derivatives for the treatment of CNS and other disorders
The present application discloses 2-phenyl benzofuran derivative compounds and compositions, and methods for treating ocular diseases, neurological disorders and protein aggregation-related disorders in patients using the compounds and compositions as disclosed herein.
A61K 31/343 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide condensed with a carbocyclic ring, e.g. coumaran, bufuralol, befunolol, clobenfurol, amiodarone
C07D 307/81 - Radicals substituted by nitrogen atoms not forming part of a nitro radical
C07D 307/80 - Radicals substituted by oxygen atoms
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