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Research

IRG 1: Defects in Nanostructures

IRG 1 is engineering unprecedented physical properties into inorganic nanostructures by controlling defect formation and doping, and will exploit emergent properties to forge new technological frontiers ranging from laser cooling to solar concentration.

People

Brandi Cossairt

IRG 1

James DeYoreo

IRG 1

Scott Dunham

IRG 1

Kai-Mei Fu

IRG 1 · IRG 2 Co-Lead

Daniel Gamelin

Director
IRG 1 Lead

David Ginger

IRG 1 · SuperSeed

Vincent Holmberg

IRG 1

Xiaosong Li

Executive Director of Education and Outreach
IRG 1 · IRG 2

Christine Luscombe

IRG 1 Co-Lead

Peter Pauzauskie

IRG 1

Lilo Pozzo

IRG 1 · MEM-Seed

Publications

  1. Coherent Spin Precession and Lifetime-Limited Spin Dephasing in CsPbBr3 Perovskite Nanocrystals

    Matthew J. Crane, Laura M. Jacoby, Theodore A. Cohen, Yunping Huang, Christine K. Luscombe, and Daniel R. Gamelin
    Nano Letters2020, 20, 8626-8633IRG 1, Year 4Christine Luscombe, Daniel Gamelin, Matthew Crane

  2. Yb3+ Speciation and Energy-Transfer Dynamics in Quantum-Cutting Yb3+-Doped CsPbCl3 Perovskite Nanocrystals and Single Crystals

    Joo Yeon D. Roh, Matthew D. Smith, Matthew J. Crane, Daniel Biner, Tyler J. Milstein, Karl W. Krämer, Daniel R. Gamelin
    Physical Review Materials2020, 4, 105405IRG 1, Year 4Daniel Gamelin

  3. Insight into the Spin Properties in Undoped and Mn-Doped CdSe/CdS-Seeded Nanorods by Optically Detected Magnetic Resonance

    Joanna Dehnel, Yahel Barak, Itay Meir, Adam K. Budniak, Anjani P. Nagvenkar, Daniel R. Gamelin, and Efrat Lifshitz
    ACS Nano2020, 14, 13478-13490IRG 1, Year 4Daniel Gamelin

  4. Using Redox Titrations to Probe the Role of Trivalent Impurity Ions in the Ferromagnetism of Colloidal EuS Nanocrystals

    Michael C. De Siena, Alexander G. Rachkov, Rachel Fainblat, Derak James, Sidney E. Creutz, Sarah L. Stoll, and Daniel R. Gamelin
    Chemistry of Materials2020, 32, 8633-8640IRG 1, Year 4Daniel Gamelin

  5. Spectroscopic Signatures of the B and H4 Polyatomic Nitrogen Aggregates in Nanodiamond

    Ryan A. Beck, Lixin Lu, Alessio Petrone, Amanda C. Ong, Peter J. Pauzauskie, and Xiaosong Li
    Journal of Physical Chemimistry C2020, 124, 18275-18283IRG 1, Year 4Peter Pauzauskie, Xiaosong Li

  6. Synthesis and Spectroscopy of Emissive, Surface-Modified, Copper-Doped Indium Phosphide Nanocrystals

    Mundy, M. E.; Eagle, F. W.; Hughes, K. E.; Gamelin, D. R.; Cossairt, B. M.
    ACS Materials Letters2020, 2, 576-581IRG 1, Year 3Daniel Gamelin, Brandi Cossairt

  7. Giant Band Splittings in EuS and EuSe Magnetic Semiconductor Nanocrystals

    Asuigui, D. R. C.; De Siena, M. C.; Fainblat, R.; James, D.; Gamelin, D. R.; Stoll, S. L.
    Chemical Communications2020, 56, 5843-5846IRG 1, Year 3Daniel Gamelin

  8. Measuring Equilibrium Binding at Quantum Dot Surfaces using Cyclic Voltammetry

    Henckel, D. A.; Enright, M. J.; Eslami, N. P.; Kroupa, D. M.; Gamelin, D. R.; Cossairt, B. M.
    Nano Letters2020, 20, 2620-2624IRG 1, Year 3Brandi Cossairt, Daniel Gamelin

  9. Window into NV Center Kinetics via Repeated Annealing and Spatial Tracking of Thousands of Individual NV Centers

    Chakravarthi, S.; Moore, C.; Opsvig, A.; Pederson, C.; Hunt, E.; Ivanov, A.; Christen, I.; Dunham, S.; Fu, K.-M.
    Physical Review Materials2020, 4, 023402IRG 1, Year 3Kai-Mei Fu, Scott Dunham

  10. Enhanced Miscibility and Strain Resistance of Blended Elastomer/π-Conjugated Polymer Composites through Side Chain Functionalization towards Stretchable Electronics

    Pakhnyuk, V.; Onorato, J. W.; Steiner, E. J.; Cohen, T. A.; Luscombe, C. K.
    Polymer International2020, 69, 308-316IRG 1, Year 3Christine Luscombe

  11. Directed Exciton Magnetic Polaron Formation in a Single Colloidal Mn2+:CdSe/CdS Quantum Dot

    Lorenz, S.; Erickson, C.; Riesner, M.; Gamelin, D. R.; Fainblat, R.; Bacher, G.
    Nano Letters2020, 20, 1896-1906IRG 1, Year 3Daniel Gamelin

  12. Theoretical Investigation of the Rashba Effect in Quantum-Confined ZnO Semiconductor Nanocrystals

    Kasper, J. M.; Gamelin, D. R.; Li, X.
    Journal of Chemical Physics2020, 152, 014308IRG 1, Year 3Xiaosong Li, Daniel Gamelin

  13. Effects of Zn2+ and Ga3+ on the Quantum Yield of Cluster-Derived InP Quantum Dots

    Friedfeld, M. R.; Stein, J. L.; Johnson, D. A.; Park, N.; Henry, N. A.; Enright, M. J.; Mocatta, D.; Cossairt, B. M.
    Journal of Chemical Physics2019, 151, 194702IRG 1, Year 3Brandi Cossairt

  14. Effects of Surface Chemistry on the Photophysics of Colloidal InP Nanocrystals

    Hughes, K. E.; Stein, J. L.; Friedfeld, M. R.; Cossairt, B. M.; Gamelin, D. R.
    ACS Nano2019, 13, 14198-14207IRG 1, Year 3Daniel Gamelin, Brandi Cossairt

  15. Theobromine and Direct Arylation: A Sustainable and Scalable Solution to Minimize Aggregation Caused Quenching

    Huang, Y.; Liu, Y.; Sommerville, P. J. W.; Kaminsky, W.; Ginger, D. S.; Luscombe, C. K.
    Green Chemistry2019, 21, 6600-6605IRG 1, Year 3Christine Luscombe, David Ginger

  16. Optically Oriented Attachment of Nanoscale Metal-Semiconductor Heterostructures in Organic Solvents via Photonic Nanosoldering

    Crane M. J., Pandres E. P., Davis E. J., Holmberg, V. C., Pauzauskie, P. J.
    Nature Communications2019, 10, 4942IRG 1, Year 3Peter Pauzauskie, Vincent Holmberg

  17. Organic Semiconductors at the University of Washington: Advancements in Materials Design and Synthesis and Toward Industrial Scale Production

    Huang, Y.; Elder, D. L.; Kwiram, A. L.; Jenekhe, S. A.; Jen, A. K. Y.; Dalton, L. R.; Luscombe, C. K.
    Advanced Materials2019, 1904239IRG 1, Year 3Christine Luscombe

  18. Spinodal Decomposition During Anion Exchange in Colloidal Mn2+-Doped CsPbX3 (X = Cl, Br) Perovskite Nanocrystals

    De Siena, M.C.; Sommer, D. E.; Creutz, S. E.; Dunham, S. T.; Gamelin, D. R.
    Chemistry of Materials2019, 31, 7711-7722IRG 1, Year 3Daniel Gamelin, Scott Dunham

  19. Structural Diversity in Cesium Bismuth Halide Nanocrystals

    Creutz, S. E.; Liu, H.; Kaiser, M.E.; Li, X.; Gamelin, D. R.
    Chemistry of Materials2019, 31, 4685-4697IRG 1, Year 3Xiaosong Li, Daniel Gamelin

  20. Detailed-Balance Analysis of Yb3+:CsPb(Cl1-xBrx)3 Quantum-Cutting Layers for High-efficiency Photovoltaics under Real-world Conditions

    Crane, M.J.; Kroupa, D. M.; Gamelin, D. R.
    Energy & Environmental Science2019, 12, 2486-2495IRG 1, Year 3Daniel Gamelin

  21. Single-Source Vapor Deposition of Quantum-Cutting Yb3+:CsPb(Cl1−xBrx)3 and Other Complex Metal-Halide Perovskites

    Crane, M. J.; Kroupa, D. M ; Roh, J. Y.; Anderson, R. T.; Smith, M. D.; Gamelin, D. R.
    ACS Applied Energy Materials2019, 2, 4560-4565IRG 1, Year 3Daniel Gamelin

  22. High Pressure, High Temperature Molecular Doping of Nanodiamond

    Crane, M. J.; Petrone, A.; Beck, R. A.; Lim, M.; Zhou, X.; Li, X.; Stroud, R. M.; Pauzauskie, P.
    Science Advances2019, 5, eaau6073IRG 1, Year 3Peter Pauzauskie, Xiaosong Li

  23. Carboxylate Anchors Act as Exciton Reporters in 1.3 nm Indium Phosphide Nanoclusters

    Leger, J.; Friedfeld, M.; Beck, R.; Gaynor, J.; Petrone, A.; Li, X.; Cossairt, B. M.; Khalil, M.
    Journal of Physical Chemistry Letters2019, 10, 1833-1839IRG 1, Year 3Brandi Cossairt, Xiaosong Li

  24. Photoluminescence Saturation in Quantum-Cutting Yb3+-Doped CsPb(Cl1-xBrx)3 Perovskite Nanocrystals: Implications for Solar Downconversion

    Erickson, C. S.; Crane, M. J.; Milstein, T. J.; Gamelin, D. R.
    Journal of Physical Chemistry C2019, 123, 12474-12484IRG 1, Year 2Daniel Gamelin

  25. Quantum-Cutting Yb3+-Doped Perovskite Nanocrystals for Monolithic Bilayer Luminescent Solar Concentrators

    Cohen, T.; Milstein, T. J.; Kroupa, D. M.; Mackenzie, D.; Luscombe, C. K.; Gamelin, D. R.
    Journal of Materials Chemistry A2019, 7, 9279-9288IRG 1, Year 2Daniel Gamelin, Christine Luscombe

  26. Anion Exchange and the Quantum-Cutting Energy Threshold in Ytterbium-Doped CsPb(Cl1-xBrx)3 Perovskite Nanocrystals

    Milstein, T. J.; Kluherz, K. T.; Kroupa, D. M.; Erickson, C. S.; De Yoreo, J. J.; Gamelin, D. R.
    Nano Letters2019, 19, 1931-1937IRG 1, Year 2Daniel Gamelin, James DeYoreo

  27. Review on the Role of Polymers in Luminescent Solar Concentrators

    Li, Y.; Zhang, X.; Zhang, Y.; Dong, R.; Luscombe, C. K.
    Journal of Polymer Science, Part A: Polymer Chemistry2019, 57, 201-215IRG 1, Year 2Christine Luscombe

  28. Electronic Structures and Spectroscopic Signatures of Silicon-Vacancy Containing Nanodiamonds

    Petrone, A.; Beck, R. A.; Kasper, J. M.; Li, X.; Huang, Y.; Crane, M. J.; Pauzauskie, P. J.
    Physical Review B2018, 98, 205405IRG 1, Year 2Peter Pauzauskie, Xiaosong Li

  29. Deterministic Positioning of Colloidal Quantum Dots on Silicon Nitride Nanobeam Cavities

    Chen, Y.; Ryou, A.; Friedfeld, M. R.; Fryett, T.; Whitehead, J.; Cossairt, B. M.; Majumdar, A.
    Nano Letters2018, 18, 6404-6410IRG 1, IRG 2, Year 2Brandi Cossairt, Arka Majumdar

  30. Quantum-Cutting Ytterbium-Doped CsPb(Cl1-xBrx)3 Perovskite Thin Films with Photoluminescence Quantum Yields over 190%

    Kroupa, D. M.; Roh, J. Y.; Milstein, T. J.; Creutz, S. E.; Gamelin, D. R.
    ACS Energy Letters2018, 3, 2390-2395IRG 1, Year 2Daniel Gamelin

  31. Probing Surface Defects of InP Quantum Dots Using Phosphorus Ka and Kb X-ray Emission Spectroscopy

    Stein, J. L.; Holden, W. M.; Venkatesh, A.; Mundy, M. E.; Rossini, A. J.; Seidler, G. T.; Cossairt, B. M.
    Chemistry of Materials2018, 30, 6377-6388IRG 1, Year 2Brandi Cossairt

  32. Picosecond Quantum Cutting Generates Photoluminescence Quantum Yields Over 100% in Ytterbium-Doped CsPbCl3 Nanocrystals

    Milstein, T. J.; Kroupa, D. M.; Gamelin, D. R.
    Nano Letters2018, 18, 3792-3799IRG 1, Year 1Daniel Gamelin

  33. Interplay of Mobile Ions and Injected Carriers Creates Recombination Centers in Metal Halide Perovskites Under Bias

    Birkhold, S. T.; Precht, J. T.; Liu, H.; Giridharagopal, R.; Eperon, G. E.; Schmidt-Mende, L.; Li, X.; Ginger D. S.
    ACS Energy Letters2018, 3, 1279-1286IRG 1, Year 2David Ginger, Xiaosong Li

  34. Soluble Supercapacitors: Charge Storage in Colloidal Iron-Doped ZnO Nanocrystals

    Brozek, C. K.; Zhao, D.; Liu, H.; Li, X.; Kittilstved, K. R.; Gamelin, D. R.
    Nano Letters2018, 18, 3297-3302IRG 1, Year 1Daniel Gamelin, Xiaosong Li

  35. Effect of Surface Passivation on Nanodiamond Crystallinity

    Beck, R. A.; Petrone, A.; Kasper, J. M.; Crane, M. J.; Pauzauskie, P. J.; Li, X.
    Journal of Physical Chemistry C2018, 122, 8573-8580IRG 1, Year 1Xiaosong Li, Peter Pauzauskie

  36. Atomistic Models of Cu Diffusion in CuInSe2 under Variations in Composition

    Sommer, D. E.; Dunham, S. T.
    Journal of Applied Physics2018, 123, 115116IRG 1, Year 1Scott Dunham

  37. A Hybrid Quantum-Classical Model of Electrostatics in Multiply Charged Quantum Dots

    Liu H.; Brozek C. K.; Sun, S.; Lingerfelt, D. B.; Gamelin, D. R.; Li, X.
    Journal of Physical Chemistry C2017, 121, 26086-26095IRG 1, Year 1Xiaosong Li, Daniel Gamelin