Nanoco Technologies Limited

Nanoco 2d Materials Limited

Nathalie C Gresty

Nigel Pickett

James Harris

Ombretta Masala

Christopher Paul Newman

Laura Wylde

Stephen Whitelegg

Imad Naasani

Paul Anthony Glarvey

Stuart Stubbs

Paul Chalker

Matthew Werner

Abdur-Rehman Irshad

Jie Li

Martin Davis

Heather Yates

Christopher Newman

Nigel L Pickett

Imad Nasaani

Steven Matthew Daniels

Abdur-Rehnam Irshad

A photodetector includes a first electrode; an interlayer disposed on the first electrode; a photoabsorbing layer disposed on the interlayer, the photoabsorbing layer having one or more charge transport materials, and a plurality of two-dimensional quantum dots (2D QDs) dispersed in the one or more charge transport material; and a second electrode disposed on the photoabsorbing layer. A heterostructure photodetector includes a first electrode; a first photoabsorbing layer disposed on the first electrode, the first photoabsorbing layer having a first photoabsorbing material; a second photoabsorbing layer disposed on the first photoabsorbing layer, the second photoabsorbing layer having a second photoabsorbing material; and a second electrode disposed on the second photoabsorbing layer.

Photodetectors based on two-dimensional quantum dots

LED devices emitting white light comprise a blue-emitting LED, green-emitting quantum dots (QDs) and red-emitting KSiF:Mn(KSF) phosphor. A backlight unit (BLU) for a liquid crystal display (LCD) comprises one or more blue-emitting LEDs and a polymer film containing green-emitting QDs and KSF phosphor. The QDs and/or KSF phosphor may be encapsulated in beads that provide protection from oxygen and/or moisture.

Display devices comprising green-emitting quantum dots and red KSF phosphor

A core/shell semiconductor nanoparticle structure comprises a core comprising a halide perovskite semiconductor and a shell comprising a semiconductor material that is not a halide perovskite (and that is substantially free of halide perovskites). The halide perovskite semiconductor core may be of the form AMX, wherein: A is an organic ammonium such as CHNH, (CH)(CHNH), PhCHNH, CHCHNHor 1-adamantyl methyl ammonium, an amidinium such as CH(NH), or an alkali metal cation such as Li, Na, K, Rbor Cs; M is a divalent metal cation such as Mg, Mn, Ni, Co, Pb, Sn, Zn, Ge, Eu, Cuor Cd; and X is a halide anion (F, Cl, Br, I) or a combination of halide anions.

Shelling of halide perovskite nanoparticles for the prevention of anion exchange

Materials and methods for preparing CuXSnYnanoparticles, wherein X is Zn, Cd, Hg, Ni, Co, Mn or Fe and Y is S or Se, (CXTY) are disclosed herein. The nanoparticles can be used to make layers for use in thin film photovoltaic (PV) cells. The CXTY materials are prepared by a colloidal synthesis in the presence of labile organo-chalcogens. The organo-chalcogens serves as both a chalcogen source for the nanoparticles and as a capping ligand for the nanoparticles.

CuXSnYnanoparticles

A lighting fixture for promoting the development of animals comprises a backlight, such as an LED or an array of LEDs, and a series of one or more retractable, rotatable or interchangeable lenses comprising quantum dots, such that the color and/or color temperature of the light emitted by the lighting fixture can be altered and optimized during animal development. A lighting fixture adapted for use on an aquarium may be in the form factor of a standard fluorescent tube and comprise one or more LEDs and a quantum dot-containing film for down-converting at least a portion of the light emitted by the LEDs so as to provide optimum wavelengths for photosynthesis by aquarium plants while simultaneously providing attractive display lighting for the aquarium fish.

Quantum dot-based lighting devices for animal husbandry and aquariums

Light-emitting materials are made from a porous light-emitting semiconductor having quantum dots (QDs) disposed within the pores. According to some embodiments, the QDs have diameters that are essentially equal in size to the width of the pores. The QDs are formed in the pores by exposing the porous semiconductor to gaseous QD precursor compounds, which react within the pores to yield QDs. According to certain embodiments, the pore size limits the size of the QDs produced by the gas-phase reactions. The QDs absorb light emitted by the light-emitting semiconductor material and reemit light at a longer wavelength than the absorbed light, thereby 'down-converting' light from the semiconductor material.

Gas phase enhancement of emission color quality in solid state LEDs

Cu2XSnY4 Nanoparticles

Cu2XSnY4 nanoparticles

A method of preparing Group XIII selenide nanoparticles comprises reacting a Group XIII ion source with a selenol compound. The nanoparticles have an MSeSemiconductor core (where M is In or Ga) and an organic capping ligand attached to the core via a carbon-selenium bond. The selenol provides a source of selenium for incorporation into the semiconductor core and also provides the organic capping ligand. The nanoparticles are particularly suitable for solution-based methods of preparing semiconductor films.

Group 13 selenide nanoparticles

An illuminated sign has a primary light source in spaced apart relation to a transparent or translucent substrate having quantum dot phosphors printed or coated thereon. The primary light source may be a blue LED, a white LED or an LED having a significant portion of its emission in the ultraviolet region of the spectrum. The LED may be a backlight for the transparent or translucent substrate and/or an edge light, a down light or an up light.

Illuminated signage using quantum dots

Disclosed herein are coated beads made of a primary matrix material and containing a population of quantum dot nanoparticles. Each bead has a multi-layer surface coating. The layers can be two or more distinct surface coating materials. The surface coating materials may be inorganic materials and/or polymeric materials. A method of preparing such particles is also described. The coated beads are useful for composite materials for applications such as light-emitting devices.

Multi-layer-coated quantum dot beads

A method of preparing Group XIII selenide nanoparticles comprises reacting a Group XIII ion source with a selenol compound. The nanoparticles have an MSesemiconductor core (where M is In or Ga) and an organic capping ligand attached to the core via a carbon-selenium bond. The selenol provides a source of selenium for incorporation into the semiconductor core and also provides the organic capping ligand. The nanoparticles are particularly suitable for solution-based methods of preparing semiconductor films.

Materials and methods for preparing CuZnSnS(CZTS) layers for use in thin film photovoltaic (PV) cells are disclosed herein. The CZTS materials are nanoparticles prepared by a colloidal synthesis in the presence of a labile organothiol. The organothiol serves as both a sulphur source and as a capping ligand for the nanoparticles.

Methods for preparing Cu2ZnSnS4 nanoparticles for use in thin film photovoltaic cells

A process is disclosed for producing quantum dots (QDs) by reacting one or more core semiconductor precursors with phosphine in the presence of a molecular cluster compound. The core semiconductor precursor(s) provides elements that are incorporated into the QD core semiconductor material. The core semiconductor also incorporates phosphorus, which is provided by the phosphine. The phosphine may be provided to the reaction as a gas or may, alternatively, be provided as an adduct of another material.

Growing community of inventors

Chester, United Kingdom

Nathalie C Gresty