Nexdot

Alexis Kuntzmann

Michele D'Amico

Marc Pousthomis

Yu-Pu Lin

Valérie Alezra

Edgar Cao

Robin Faideau

Benoît Dubertret

Akram Yahia Ammar

A method for obtaining at least one particle, including: (a) preparing solution A including at least one precursor of at least one of Si, B, P, Ge, As, Al, Fe, Ti, Zr, Ni, Zn, Ca, Na, Ba, K, Mg, Pb, Ag, V, Te, Mn, Ir, Sc, Nb, Sn, Ce, Be, Ta, S, Se, N, F, and Cl; (b) preparing aqueous solution B; (c) forming droplets of solution A; (d) forming droplets of solution B; (e) mixing droplets; (f) dispersing mixed droplets in a gas flow; (g) heating dispersed droplets to obtain the at least one particle; (h) cooling the at least one particle; and (i) separating and collecting the at least one particle. The aqueous solution is acidic, neutral, or basic. In step (a) and/or step (b) at least one colloidal suspension of a plurality of nanoparticles is mixed with the solution. Also, a device for implementing the method.

Method for obtaining encapsulated nanoparticles

Disclosed is a composite particle including a plurality of nanoparticles encapsulated in an inorganic material, wherein the plurality of nanoparticles is uniformly dispersed in the inorganic material. Also disclosed is relates to a light emitting material, a support supporting at least one composite particle and/or a light emitting material and an optoelectronic device including at least one composite particle and/or a light emitting material.

Uniformly encapsulated nanoparticles and uses thereof

Disclosed is a luminescent particle including a first material, wherein the luminescent particle includes at least one particle including a second material and at least one nanoparticle dispersed in the second material; wherein the first material and the second material have a bandgap superior or equal to 3 eV; and wherein the luminescent particle is a colloidal particle. Also disclosed is a light emitting material, a support and an optoelectronic device.

Luminescent particles comprising encapsulated nanoparticles and uses thereof

Disclosed is an ink including at least one particle including a first material; and at least one liquid vehicle; wherein the particle includes at least one particle including a second material and at least one nanoparticle dispersed in the second material; wherein the first material and the second material have an extinction coefficient less or equal to 15&#xd7;10at 460 nm. The invention also relates to inks, light emitting materials including at least one ink, patterns including at least one ink, particles deposited on a support, optoelectronic devices including at least one ink and method for depositing an ink on a support.

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Paris, France

Alexis Kuntzmann