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METHODS FOR THE PREPARATION OF COLLOIDAL NANOCRYSTAL DISPERSION

United States Patent Application

20160336087
A1
View the Complete Application at the US Patent & Trademark Office
Methods of preparing a dispersion of colloidal nanocrystals (NCs) for use as NC thin films are disclosed. A dispersion of NCs capped with ligands may be mixed with a solution containing chalcogenocyanate (xCN)-based ligands. The mixture may be separated into a supernatant and a flocculate. The flocculate may be dispersed with a solvent to form a subsequent dispersion of NCs capped with xCN-based ligands.
Kagan, Cherie R. (BALA-CYNWYD, PA), FAFARMAN, AARON T. (PHILADELPHIA, PA), CHOI, JI-HYUK (PHILADELPHIA, PA), KOH, WEON-KYU (LOS ALAMOS, NM), KIM, DAVID K. (LINCOLN, MA), OH, SOONG JU (PHILADELPHIA, PA), LAI, YUMING (PHILADELPHIA, PA), HONG, SUNG-HOON (YUSEONG-GU, KR), SAUDARI, SANGAMESHWAR RAO (FISHKILL, NY), MURRAY, CHRISTOPHER B. (BALA CYNWYD, PA)
15/ 150,816
May 10, 2016
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] Aspects of this invention were made with government support under one or more of: contract number DMS-0935165 awarded by the National Science Foundation (NSF) Solar Program; under contract number DE-SC0002158 awarded by the U.S. Department of Energy Office of Basic Energy Sciences, Division of Materials Science and Engineering; under contract number ONR-N00014-10-1-0942 awarded by the Office of Naval Researched MURI Program; under contract number CBET-0854226 awarded by NSF-CBET; and under contract number DMR11-20901 awarded by the NSF. The government has rights in this invention.