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US 11,111,434 B2Granted
Light emitter, method for producing light emitter, and biological substance labeling agent
AssigneeMurata Manufacturing Co., Ltd.
InventorsTakahito Nagano, Norikazu Fujihira
Life of this patent
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Abstract
A light emitter is formed from nanoparticles including a compound semiconductor containing an Ag component, In component, and Se component. The peak wavelength of the emission intensity falls within the range of 700 to 1400 nm, and the half-value width ΔH for the peak wavelength is 100 nm or less. The light emitted is configured to emit strong light in the near-infrared region, and which is capable of detecting biological information, and is preferred for bioimaging.
Claims6
A light emitter for labeling a biological substance, the light emitter comprising:
- nanoparticles composed of a compound semiconductor that contains an Ag compound, an In component, and a Se component,
- wherein the compound semiconductor is a light-emitting material that emits light at an emission intensity having a peak wavelength within a range between 700 nm and 1400 nm, and
- wherein a mixing ratio of the In component to the Ag component is between 2 and 3 in terms of molar ratio, such that the light-emitting material is constructed to emit light at the emission intensity having the peak wavelength that is 85 nm or less in half-value width.
Dependencies are inferred from the claim text.