Nanothermometer
AssigneeInstitut National De La Recherche Scientifque
InventorsHaiguang Zhao, Alberto Vomiero, Federico Rosei
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Abstract
There is provided a semiconductor nanocrystal or quantum dot comprising a core made of a material and at least one shell made of another material. Also there is provided a composite comprising a plurality of such nanocrystals or quantum dots. Moreover, there is provided a method of measuring the temperature of an object or area, comprising using a temperature sensor comprising a semiconductor nanocrystal or quantum dot of the invention.
Claims18
A dual-emission semiconductor nanocrystal or quantum dot comprising a core made of a material, and two shells or more each made of a different crystal form of another material,
- wherein the dual-emission semiconductor nanocrystal or quantum dot exhibits a double peaked photoluminescence emission when excited under about 400 nm visible light;
- and/or the dual-emission semiconductor nanocrystal or quantum dot has excitation and emission properties in the near infrared (NIR).
A dual-emission semiconductor nanocrystal or quantum dot comprising a core made of PbS and two shells each made of a different crystal form of CdS,
- wherein a combined thickness of the two shells is greater than a thickness of the core,
- and wherein the dual-emission semiconductor nanocrystal or quantum dot exhibits a double peaked photoluminescence emission when excited under about 400 nm visible light;
- and/or the dual-emission semiconductor nanocrystal or quantum dot has excitation and emission properties in the near infrared (NIR).
Dependencies are inferred from the claim text.