公开(公告)号：WO2019059966A1

公开(公告)日：2019-03-28

申请号：PCT/US2018/027427

申请日：2018-04-13

Applicant: RAYTHEON COMPANY

Inventor： LIN, Stephanie, J. ,  CHOW, James, R. ,  SPARIOSU, Kalin

IPC: B82Y30/00 ,  C01B17/20 ,  C01B19/00 ,  B82Y20/00 ,  B82Y40/00 ,  C09K11/88 ,  H01L31/0352 ,  G02B6/02

CPC classification number: C09K11/662 ,  B82Y20/00 ,  B82Y40/00 ,  C01B17/20 ,  C01B19/007 ,  C01G21/21 ,  C01P2002/84 ,  C01P2004/64 ,  C01P2004/84 ,  C01P2006/60 ,  C09K11/025 ,  C09K11/54 ,  C09K11/565 ,  C09K11/883 ,  F21K9/64 ,  F21V7/22 ,  F21Y2115/10 ,  H01L31/035218 ,  H01L33/502 ,  H01L2933/0041 ,  Y10S977/774 ,  Y10S977/825 ,  Y10S977/892 ,  Y10S977/95

Abstract: In certain embodiments, a first semiconductor material is vaporized to generate a vapor phase condensate. The vapor phase condensate is allowed to form nanoparticles. The nanoparticles are annealed to yield nanoparticles or cores. The cores are overcoated by introducing a solution containing second semiconductor material precursors in a coordinating solvent into a suspension of cores at a desired elevated temperature and mixing for a period of time sufficient to cause diffusion of the shell into the core. The diffusion of the shell into the core causes the quantum dots to exhibit a broadened optical emission. The produced quantum dots may be incorporated into a quantum dot based radiation source.