University of California

Alliance for Sustainable Energy, LLC

Trustees of the Colorado School of Mines

California Institute of Technology

Adele Clare Tamboli

Evelyn Lynn Hu

Emily Lowell Warren

Steven P DenBaars

Shuji Nakamura

James Stephen Speck

Harry A Atwater

Arpan Chakraborty

Mathew C Schmidt

Chunmei Ban

Pauls Stradins

Eric Steven Toberer

Marshall Brooks Tellekamp, Jr

Celeste Louise Melamed

Daniel B Turner-Evans

Joel Wheeler Ager, Iii

Calton Junjing Kong

Anna Osella

Lakshmi Krishna

Manav Malhotra

Disclosed herein are methods for making ZnSnN.

Ternary nitride negative electrode based lithium-ion battery

Described herein are devices and methods utilizing cascade photocatalysis to drive multiple chemical reactions via a series of photoelectrochemical catalysts driven by the conversion of light into current by one or more photovoltaic devices. The described devices and methods are tunable and may be used in conjunction with different reactants and products, including the conversion of carbon dioxide into valuable hydrocarbon products.

Cascade photocatalysis device

Presented herein are embodiments of a tandem solar panel subunit with 2-terminals, made from two 3-terminal cell tandems, whose top-cells are strongly current-mismatched to the Si 3-terminal bottom cell.

Tandem module unit

Systems and methods for growing semiconductor materials on substrates by using patterned sol-gel materials are provided. According to a first aspect of the invention, a method includes forming a pattern of a sol-gel material on a first region of substrate, and depositing a semiconductor material on a second region of the substrate by selective area growth. The second region is adjacent to the first region.

Selective area growth of semiconductors using patterned sol-gel materials

The invention relates to a method to produce a type II silicon clathrate, a method to produce a type I clathrate, and a method to decrease sodium in silicon clathrates.

Rapid reduction of sodium occupancy in type II silicon clathrate by chemical etching

This disclosure relates to structures for the conversion of light into energy. More specifically, the disclosure describes devices for conversion of light to electricity using ordered arrays of semiconductor wires coated in a wider band-gap material.

Heterojunction wire array solar cells

A photoelectrochemical (PEC) etch is performed for chip shaping of a device comprised of a III-V semiconductor material, in order to extract light emitted into guided modes trapped in the III-V semiconductor material. The chip shaping involves varying an angle of incident light during the PEC etch to control an angle of the resulting sidewalls of the III-V semiconductor material. The sidewalls may be sloped as well as vertical, in order to scatter the guided modes out of the III-V semiconductor material rather than reflecting the guided modes back into the III-V semiconductor material. In addition to shaping the chip in order to extract light emitted into guided modes, the chip may be shaped to act as a lens, to focus its output light, or to direct its output light in a particular way.

Photoelectrochemical etching for chip shaping of light emitting diodes

A method for fabricating a semiconductor laser device, by etching facets using a photoelectrochemical (PEC) etch, so that the facets are sufficiently smooth to support optical modes within a cavity bounded by the facets.

Photoelectrochemical etching for laser facets

A method for photoelectrochemical (PEC) etching of a p-type semiconductor layer simply and efficiently, by providing a driving force for holes to move towards a surface of a p-type cap layer to be etched, wherein the p-type cap layer is on a heterostructure and the heterostructure provides the driving force from an internal bias generated internally in the heterostructure; generating electron-hole pairs in a separate area of the heterostructure than the surface to be etched; and using an etchant solution to etch the surface of the p-type layer.

Growing community of inventors

Golden, CO, United States of America

Adele Clare Tamboli