Cooledge Lighting, Inc.

Wildcat Discovery Technologies, Inc.

Samsung Sdi Co., Inc.

Iowa State University Research Foundation Inc

Advanced Technology Materials, Inc.

Pacific Integrated Energy, Inc.

David Keogh

Vladimir Odnoblyudov

Michael Albert Tischler

Steven Kaye

Cory O'Neill

Wei Tong

Marissa Caldwell

George R Brandes

Jin-hwan Park

Xueping Xu

Robert P Vaudo

Jae-gu Yoon

Jeffrey S Flynn

Myung-hoon Kim

Byung-jin Choi

Barbara E Landini

Vikram Dalal

Chen Zheng

Disclosed are embodiments of a thin-film photovoltaic technology including a single-junction crystalline silicon solar cell with a photonic-plasmonic back-reflector structure for lightweight, flexible energy conversion applications. The back-reflector enables high absorption for long-wavelength and near-infrared photons via diffraction and light-concentration, implemented by periodic texturing of the bottom-contact layer by nanoimprint lithography. The thin-film crystalline silicon solar cell is implemented in a heterojunction design with amorphous silicon, where plasma enhanced chemical vapor deposition (PECVD) is used for all device layers, including a low-temperature crystalline silicon deposition step. Excimer laser crystallization is used to integrate crystalline and amorphous silicon within a monolithic process, where a thin layer of amorphous silicon is converted to a crystalline silicon seed layer prior to deposition of a crystalline silicon absorber layer via PECVD. The crystalline nature of the absorber layer and the back-reflector enable efficiencies higher than what is achievable in other thin-film silicon devices.

Thin-film crystalline silicon solar cell using a nanoimprinted photonic-plasmonic back-reflector structure

In various embodiments, lighting systems include a carrier having a plurality of conductive elements disposed thereon and a light-emitting array. The light-emitting array is disposed over the carrier and includes a plurality of light-emitting diodes (LEDs), each of which has at least two electrical contacts electrically connected to conductive elements.

High efficiency LEDs and LED lamps

A composition for forming an electrode. The composition includes a metal fluoride compound doped with a dopant. The addition of the dopant: (i) improves the bulk conductivity of the composition as compared to the undoped metal fluoride compound; (ii) changes the bandgap of the composition as compared to the undoped metal fluoride compound; or (iii) induces the formation of a conductive metallic network. A method of making the composition is included.

High energy materials for a battery and methods for making and use

A composition for forming an electrode. The composition includes a metal fluoride, such as copper fluoride, and a matrix material. The matrix material adds capacity to the electrode. The copper fluoride compound is characterized by a first voltage range in which the copper fluoride compound is electrochemically active and the matrix material characterized by a second voltage range in which the matrix material is electrochemically active and substantially stable. A method for forming the composition is included.

In various embodiments, lighting systems include an electrically insulating carrier having a plurality of conductive elements disposed thereon and a light-emitting array. The light-emitting array is disposed over the carrier and includes a plurality of light-emitting diodes (LEDs) that each has at least two electrical contacts electrically connected to conductive elements by an electrical connection featuring solder.

In various embodiments, lighting systems include an electrically insulating carrier having a plurality of conductive elements disposed thereon and a light-emitting array. The light-emitting array is disposed over the carrier and includes a plurality of light-emitting diodes (LEDs) that each has at least two electrical contacts electrically connected to conductive elements by a conductive adhesive.

In various embodiments, lighting systems include an electrically insulating carrier having a plurality of conductive elements disposed thereon and a light-emitting array. The light-emitting array is disposed over the carrier and includes a plurality of light-emitting diodes (LEDs) that are interconnected in parallel in a first direction and interconnected in series in a second direction different from the first direction.

An electrode for an electrochemical cell including a metal fluoride containing active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material. The active material can be a hybrid material formed from the reaction of a metal fluoride and a metal complex.

High energy cathode for a battery

In various embodiments, lighting systems include an electrically insulating carrier having a plurality of conductive elements disposed thereon, a light-emitting array, and at least one power source. The light-emitting array is disposed over the carrier and includes a plurality of light-emitting strings, each light-emitting string comprising a plurality of electrically connected light-emitting diodes (LEDs). Each LED has at least two electrical contacts, and each electrical contact is electrically connected to a conductive element. The power source provides power to the light-emitting strings.

An electrode for an electrochemical cell including an active electrode material and an intrinsically conductive coating wherein the coating is applied to the active electrode material by heating the mixture for a time and at a temperature that limits degradation of the cathode active material.

Cathode for a battery

A cathode active material including a lithium metal oxide represented by Formula 1:Li[LiMeM']O&#x2003;&#x2003;Formula 1wherein x+y+z=1, 0&#x3c;x&#x3c;0.33, 0&#x3c;z&#x2266;0.1, and 0&#x2266;d&#x2266;0.1, Me is at least one metal selected from Mn, V, Cr, Fe, Co, Ni, Al, and B, and M&#x2032; is at least one metal selected from Sc, Y, and La.

Cathode active material, and cathode and lithium battery including the material

In various embodiments, lighting systems include an electrically insulating carrier having a plurality of conductive elements disposed thereon, a light-emitting array, and at least one power source. The light-emitting array is disposed over the carrier and includes a plurality of light-emitting strings, each light-emitting string comprising a plurality of electrically connected light-emitting diodes (LEDs). Each LED has at least two electrical contacts, and each electrical contact is electrically connected to a conductive element by a conductive adhesive and/or a solder. The power source provides power to the light-emitting strings.

Growing community of inventors

San Diego, CA, United States of America

David Keogh