Method of making highly-confined semiconductor nanocrystals

Kahen, Keith Brian; Holland, Matthew; Kuttiatoor, Sudeep Pallikkara

Method of making highly-confined semiconductor nanocrystals

Patent · 22 July 2014

OSTI ID:1532107

Kahen, Keith Brian; Holland, Matthew; Kuttiatoor, Sudeep Pallikkara

A method of making a colloidal solution of high confinement semiconductor nanocrystals includes: forming a first solution by combining a solvent, growth ligands, and at most one semiconductor precursor; heating the first solution to the nucleation temperature; and adding to the first solution, a second solution having a solvent, growth ligands, and at least one additional and different precursor than that in the first solution to form a crude solution of nanocrystals having a compact homogenous semiconductor region. The method further includes: waiting 0.5 to 20 seconds and adding to the crude solution a third solution having a solvent, growth ligands, and at least one additional and different precursor than those in the first and second solutions; and lowering the growth temperature to enable the formation of a gradient alloy region around the compact homogenous semiconductor region, resulting in the formation of a colloidal solution of high confinement semiconductor nanocrystals.

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Research Organization:: Eastman Kodak Company, Rochester, NY (United States)

Sponsoring Organization:: USDOE

Assignee:: Eastman Kodak Company (Rochester, NY)

Patent Number(s):: 8,784,703

Application Number:: 13/275,595

OSTI ID:: 1532107

Country of Publication:: United States

Language:: English

References (15)

Synthesis and Characterization of Monodisperse Nanocrystals and Close-Packed Nanocrystal Assemblies Murray, C. B.; Kagan, C. R.; Bawendi, M. G. Annual Review of Materials Science, Vol. 30, Issue 1, p. 545-610 https://doi.org/10.1146/annurev.matsci.30.1.545	journal	August 2000
An Alternative of CdSe Nanocrystal Emitters: Pure and Tunable Impurity Emissions in ZnSe Nanocrystals Pradhan, Narayan; Goorskey, David; Thessing, Jason Journal of the American Chemical Society, Vol. 127, Issue 50 https://doi.org/10.1021/ja055557z	journal	December 2005
Step-Wise Synthesis of InP/ZnS Core−Shell Quantum Dots and the Role of Zinc Acetate Ryu, Euidock; Kim, Sungwoo; Jang, Eunjoo Chemistry of Materials, Vol. 21, Issue 4 https://doi.org/10.1021/cm803084p	journal	February 2009
Synthesis Routes for Large Volumes of Nanoparticles Masala, Ombretta; Seshadri, Ram Annual Review of Materials Research, Vol. 34, Issue 1 https://doi.org/10.1146/annurev.matsci.34.052803.090949	journal	August 2004
Exciton-phonon coupling and disorder in the excited states of CdSe colloidal quantum dots Salvador, Mayrose R.; Graham, Matthew W.; Scholes, Gregory D. The Journal of Chemical Physics, Vol. 125, Issue 18 https://doi.org/10.1063/1.2363190	journal	November 2006
Synthesis and Characterization of Strongly Luminescing ZnS-Capped CdSe Nanocrystals Hines, Margaret A.; Guyot-Sionnest, Philippe The Journal of Physical Chemistry, Vol. 100, Issue 2, p. 468-471 https://doi.org/10.1021/jp9530562	journal	January 1996
Structural Basis for Near Unity Quantum Yield Core/Shell Nanostructures McBride, James; Treadway, Joe; Feldman, L. C. Nano Letters, Vol. 6, Issue 7 https://doi.org/10.1021/nl060993k	journal	July 2006
Electron–vibration coupling in semiconductor clusters studied by resonance Raman spectroscopy Alivisatos, A. P.; Harris, T. D.; Carroll, P. J. The Journal of Chemical Physics, Vol. 90, Issue 7 https://doi.org/10.1063/1.455855	journal	April 1989
State-Resolved Exciton−Phonon Couplings in CdSe Semiconductor Quantum Dots Sagar, D. M.; Cooney, Ryan R.; Sewall, Samuel L. The Journal of Physical Chemistry C, Vol. 112, Issue 25 https://doi.org/10.1021/jp803386g	journal	May 2008
Etching of Colloidal InP Nanocrystals with Fluorides: Photochemical Nature of the Process Resulting in High Photoluminescence Efficiency Talapin, Dmitri V.; Gaponik, Nikolai; Borchert, Holger The Journal of Physical Chemistry B, Vol. 106, Issue 49 https://doi.org/10.1021/jp026380n	journal	December 2002
Very weak temperature quenching in orange luminescence of ZnS:Mn2+ nanocrystals in polymer Tanaka, Masanori; Masumoto, Yasuaki Chemical Physics Letters, Vol. 324, Issue 4 https://doi.org/10.1016/S0009-2614(00)00587-X	journal	July 2000
Efficient and Color-Tunable Mn-Doped ZnSe Nanocrystal Emitters: Control of Optical Performance via Greener Synthetic Chemistry Pradhan, Narayan; Peng, Xiaogang Journal of the American Chemical Society, Vol. 129, Issue 11 https://doi.org/10.1021/ja068360v	journal	March 2007
Highly efficient all-nitride phosphor-converted white light emitting diode Mueller-Mach, Regina; Mueller, Gerd; Krames, Michael R. physica status solidi (a), Vol. 202, Issue 9, p. 1727-1732 https://doi.org/10.1002/pssa.200520045	journal	July 2005
“Giant” Multishell CdSe Nanocrystal Quantum Dots with Suppressed Blinking Chen, Yongfen; Vela, Javier; Htoon, Han Journal of the American Chemical Society, Vol. 130, Issue 15 https://doi.org/10.1021/ja711379k	journal	April 2008
Theory of the linear and nonlinear optical properties of semiconductor microcrystallites Schmitt-Rink, S.; Miller, D. A. B.; Chemla, D. S. Physical Review B, Vol. 35, Issue 15 https://doi.org/10.1103/PhysRevB.35.8113	journal	May 1987

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Method of making highly-confined semiconductor nanocrystals

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