Abstract: The present invention provides synthetic pigment structures, isolated pigment granules, and pigment proteins, as well as methods of making and using them.

Abstract: The present invention is based, at least in part, on the isolation of intact pigment granules from the brown chromatophores in the skin of the cuttlefish, Sepia officinalis and the characterization of the optical properties of the isolated pigment granules. In particular, it has been discovered that the isolated pigment granules not only fluoresce in the far red wavelength of light when excited with blue/green light, but they also absorb and transmit or scatter light in the visible light range and are stable and optically active under ambient conditions.

Abstract: Alloys of tunable compositions and corresponding optical, electrical and mechanical properties are described. Also described are their uses in optoelectronic devices and material interfaces.

Abstract: A light emitting device includes a substrate layer, a first injection contact positioned over the substrate layer, a first dielectric layer positioned over the first injection contact, a light emission layer positioned over the first dielectric layer, a second dielectric layer positioned over the light emission layer and a second injection contact positioned over the second dielectric layer. The light emission layer includes an organic template having binding sites for binding nanoparticles into an array. The wavelength of emitted light is dependent upon the size of the nanoparticles and the pitch of the array. The light emitting device may include a first plurality of binding sites for binding a first set of nanoparticles and a second plurality of binding sites for binding a second set of nanoparticles. The wavelength depends upon a ratio of the first plurality to the second plurality of binding sites.

Abstract: A light emitting device includes a substrate layer, a first injection contact positioned over the substrate layer, a first dielectric layer positioned over the first injection contact, a light emission layer positioned over the first dielectric layer, a second dielectric layer positioned over the light emission layer and a second injection contact positioned over the second dielectric layer. The light emission layer includes an organic template having binding sites for binding nanoparticles into an array. The wavelength of emitted light is dependent upon the size of the nanoparticles and the pitch of the array. The light emitting device may include a first plurality of binding sites for binding a first set of nanoparticles and a second plurality of binding sites for binding a second set of nanoparticles. The wavelength depends upon a ratio of the first plurality to the second plurality of binding sites.

Abstract: Alloys of tunable compositions and corresponding optical, electrical and mechanical properties are described. Also described are their uses in optoelectronic devices and material interfaces.

Abstract: A gallium nitride (GaN) based light emitting diode (LED), wherein light is extracted through a nitrogen face (N-face) (42) of the LED and a surface of the N-face (42) is roughened into one or more hexagonal shaped cones. The roughened surface reduces light reflections occurring repeatedly inside the LED, and thus extracts more light out of the LED. The surface of the N-face (42) is roughened by an anisotropic etching, which may comprise a dry etching or a photo-enhanced chemical (PEC) etching.

Abstract: A method for locally controlling an electrical potential of a semiconductor structure or device, and hence locally controlling lateral and/or vertical photoelectrochemical (PEC) etch rates, by appropriate placement of electrically resistive layers or layers that impede electron flow within the semiconductor structure, and/or by positioning a cathode in contact with specific layers of the semiconductor structure during PEC etching.

Abstract: Use of peptides and other biological agents for fabrication of transistors, field effect transistors, and components thereof. An intermediate component for use in fabrication of a field effect transistor, the component comprising at least two of the following transistor elements: (i) source, (ii) drain, (iii) channel, (iv) gate, and (v) dielectric, wherein the at least two elements are combined by a biological agent comprising at least two binding structures, wherein each of the binding structures is bound to one of the at least two elements. The channel can be a nanowire or a nanotube which is surrounded by a high-K dielectric material, which is further surrounded by a metal gate layer. The biological agent can be a bifunctional peptide which binds dielectric to channel or binds dielectric to gate materials.