Publications

Selected publications are provided below. Click here to see a full list of publications from the Schaller group via Google Scholar.

2019

Determination of the In-Plane Exciton Radius in 2D CdSe Nanoplatelets via Magneto-Optical Spectroscopy
A. Brumberg, S. M. Harvey, J. P. Philbin, B. T. Diroll, B. Lee, S. A. Crooker, M. R. Wasielewski, E. Rabani, and R. D. Schaller
ACS Nano, just accepted
Optical and Physical Probing of Thermal Processes in Semiconductor and Plasmonic Nanocrystals
B. T. Diroll, M. S. Kirschner, P. Guo, and R. D. Schaller
Annu. Rev. Phys. Chem. 2019, 70 (1), 353
Shape-Selective Optical Transformations of CdSe Nanoplatelets Driven by Halide Ion Ligand Exchange
B. T. Diroll and R. D. Schaller
Chem. Mater. 2019, 31 (9), 3556
Thermal Excitation Control over Photon Emission Rate of CdSe Nanocrystals
B. T. Diroll and R. D. Schaller
Nano Lett. 2019, 19 (4), 2322
Synthesis of Type I PbSe/CdSe Dot-on-Plate Heterostructures with Near-Infrared Emission
K. R. Williams, B. T. Diroll, N. E. Watkins, X. Rui, A. Brumberg, R. F. Klie, and R. D. Schaller
J. Am. Chem. Soc. 2019, 141 (13), 5092
Photoinduced, Reversible Phase Transition in All-Inorganic Perovskite Nanocrystals
M. S. Kirschner, B. T. Diroll, P. Guo, S. M. Harvey, W. Helweh, N. C. Flanders, A. Brumberg, N. E. Watkins, A. A. Leonard, A. M. Evans, M. R. Wasielewski, W. R. Dichtel, X. Zhang, L. X. Chen, and R. D. Schaller
Nat. Commun. 2019, 10, 504
Infrared-Pump Electronic-Probe of Methylammonium Lead Iodide Reveals Electronically Decoupled Organic and Inorganic Sublattices
P. Guo, A. Mannodi-Kanakkithodi, J. Gong, Y. Xia, C. C. Stoumpos, D. H. Cao, B. T. Diroll, J. B. Ketterson, G. P. Wiederrecht, T. Xu, M. K. Y. Chan, M. G. Kanatzidis, and R. D. Schaller
Nat. Commun. 2019, 10, 482

2018

Heat Transfer at Hybrid Interfaces: Interfacial Ligand-to-Nanocrystal Heating Monitored with Infrared Pump, Electronic Probe Spectroscopy
B. T. Diroll, P. Guo, and R. D. Schaller
Nano Lett, 2018, 18 (12), 7863
Semiconductor Nanoplatelet Excimers
B. T. Diroll, W. Cho, I. Coropceanu, S. M. Harvey, A. Brumberg, N. Holtgrewe, S. A. Crooker, M. R. Wasielewski, V. B. Parakapenka, D. V. Talapin, and R. D. Schaller
Nano Lett, 2018, 18 (11), 6948
Optical Signatures of Transiently Disordered Semiconductor Nanocrystals
M. S. Kirschner, B. T. Diroll, A. Brumberg, A. A. Leonard, D. C. Hannah, L. X. Chen, and R. D. Schaller
ACS Nano, 2018, 12 (10), 10008
Slow Thermal Equilibration in Methylammonium Lead Iodide Revealed by Transient Mid-Infrared Spectroscopy
P. Guo, J. Gong, S. Sadasivam, Y. Xia, T.-B. Song, B. T. Diroll, C. C. Stoumpos, J. B. Ketterson, M. G. Kanatzidis, M. K. Y. Chan, P. Darancet, T. Xu, and R. D. Schaller
Nat. Commun. 2018, 9, 2792
Auger Heating and Thermal Dissipation in Zero-Dimensional CdSe Nanocrystals Examined Using Femtosecond Stimulated Raman Spectroscopy
S. M. Harvey, B. T Phelan, D. C. Hannah, K. E Brown, R. M. Young, M. S. Kirschner, M. R. Wasielewski, and R. D. Schaller
J. Phys. Chem. Lett. 2018, 9 (16), 4481
Hyperbolic Dispersion Arising from Anisotropic Excitons in Two-Dimensional Perovskites
P. Guo, W. Huang, C. C. Stoumpos, L. Mao, J. Gong, L. Zeng, B. T. Diroll, Y. Xia, X. Ma, D. J. Gosztola, T. Xu, J. B. Ketterson, M. J. Bedzyk, A. Facchetti, T. J. Marks, M. G. Kanatzidis, and R. D. Schaller
Phys. Rev. Lett. 2018, 121 (12), 127401
Material Dimensionality Effects on Electron Transfer Rates Between CsPbBr3 and CdSe Nanoparticles
A. Brumberg, B. T. Diroll, G. Nedelcu, M. E. Sykes, Y. Liu, S. M. Harvey, M. R. Wasielewski, M. V. Kovalenko, and R. D. Schaller
Nano Lett. 2018, 18 (8), 4771
Low‐Temperature Absorption, Photoluminescence, and Lifetime of CsPbX3 (X = Cl, Br, I) Nanocrystals
B. T. Diroll, H. Zhou, and R. D. Schaller
Adv. Funct. Mater. 2018, 28 (30), 1800945
Cross-Plane Coherent Acoustic Phonons in Two-Dimensional Organic-Inorganic Hybrid Perovskites
P. Guo, C. C. Stoumpos, L. Mao, S. Sadasivam, J. B. Ketterson, P. Darancet, M. G. Kanatzidis, and R. D. Schaller
Nat. Commun. 2018, 9, 2019
Low-Loss Near-Infrared Hyperbolic Metamaterials with Epitaxial ITO-In2O3 Multilayers
P. Guo, B. T. Diroll, W. Huang, L. Zeng, B. Wang, M. J. Bedzyk, A. Facchetti, T. J. Marks, R. P. H. Chang, and R. D. Schaller
ACS Photonics 2018, 5 (5), 2000
Elevated Temperature Photophysical Properties and Morphological Stability of CdSe and CdSe/CdS Nanoplatelets
C. E. Rowland, I. Fedin, B. T. Diroll, Y. Liu, D. V. Talapin, and R. D. Schaller
J. Phys. Chem. Lett. 2018, 9 (2), 286
Phonon-Driven Oscillatory Plasmonic Excitonic Nanomaterials
M. S. Kirschner, W. Ding, Y. Li, C. T. Chapman, A. Lei, X. Lin, L. X. Chen, G. C. Schatz, and R. D. Schaller
Nano Lett. 2018, 18 (1), 442
Unique Optical Properties of Methylammonium Lead Iodide Nanocrystals Below the Bulk Tetragonal-Orthorhombic Phase Transition
B. T. Diroll, P. Guo, and R. D. Schaller
Nano Lett. 2018, 18 (2), 846

2017

Polar Fluctuations in Metal Halide Perovskites Uncovered by Acoustic Phonon Anomalies
P. Guo, Y. Xia, J. Gong, C. C. Stoumpos, K. M. McCall, G. C. B. Alexander, Z. Mall, H. Zhoull, D. J. Gosztola, J. B. Ketterson, M. G. Kanatzidis, T. Xu, M. K. Y. Chan, and R. D. Schaller
ACS Ener. Lett. 2017, 2 (10), 2463
Ultrafast Silicon Photonics with Visible to Mid-Infrared Pumping of Silicon Nanocrystals
B. T. Diroll, K. S. Schramke, P. Guo, U. R. Kortshagen, and R. D. Schaller
Nano Lett. 2017, 17 (10), 6409
Transient Melting and Recrystallization of Semiconductor Nanocrystals Under Multiple Electron–Hole Pair Excitation
M. S. Kirschner, D. C. Hannah, B. T. Diroll, X. Zhang, M. J. Wagner, D. Hayes, A. Y. Chang, C. E. Rowland, C. M. Lethiec, G. . Schatz, L. X. Chen, and R. D. Schaller
Nano Lett. 2017, 17 (9), 5314
Tunable Infrared Hyperbolic Metamaterials with Periodic Indium-Tin-Oxide Nanorods
P. Guo, R. P. H. Chang, and R. D. Schaller
Appl. Phys. Lett. 2017, 111, 021108
Transient Negative Optical Nonlinearity of Indium Oxide Nanorod Arrays in the Full-Visible Range
P. Guo, R. P. H. Chang, and R. D. Schaller
ACS Photonics 2017, 4 (6), 1494
High‐Temperature Photoluminescence of CsPbX3 (X= Cl, Br, I) Nanocrystals
B. T. Diroll, G. Nedelcu, M. V. Kovalenko, and R. D. Schaller
Adv. Funct. Mater. 2017, 27 (21), 1606750
Violet-to-Blue Gain and Lasing from Colloidal CdS Nanoplatelets: Low-Threshold Stimulated Emission Despite Low Photoluminescence Quantum Yield
B. T. Diroll, D. V. Talapin, and R. D. Schaller
ACS Photonics 2017, 4 (3), 576

2016

Conformal Coating of a Phase Change Material on Ordered Plasmonic Nanorod Arrays for Broadband All-Optical Switching
P. Guo, M. S. Weimer, J. D. Emery, B. T. Diroll, X. Chen, A. S. Hock, R. P. H. Chang, A. B. F. Martinson, and R. D. Schaller
ACS Nano 2017, 11 (1), 693
Large Transient Optical Modulation of Epsilon-Near-Zero Colloidal Nanocrystals
B. T. Diroll, P. Guo, R. P. H. Chang, and R. D. Schaller
ACS Nano 2016, 10 (11), 10099
Large Optical Nonlinearity of Indium-Tin-Oxide Nanorods for Sub-Picosecond All-Optical Modulation of the Full Visible Spectrum
P. Guo, R.D. Schaller, L.E. Ocola, B.T. Diroll, J.B. Ketterson, R.P.H. Chang
Nat. Commun. 2016, 7, 12892
Surface-Area Dependent Electron Transfer Between Isoenergetic 2D Quantum Wells and a Molecular Acceptor
B.T. Diroll, I. Fedin, P. Darancet, D.V. Talapin, R. D. Schaller
J. Am. Chem. Soc. 2016, 138 (35), 11109
Gigahertz Acoustic Vibrations of Elastically Anisotropic Indium-Tin-Oxide Nanorod Arrays
P. Guo, R.D. Schaller, L.E. Ocola, J.B. Ketterson, and R.P.H. Chang
Nano Lett. 2016, 16 (9), 5639
Slow Organic-to-Inorganic Sub-Lattice Thermalization in Methylammonium Lead Iodide Perovskites Observed by Ultrafast Photoluminescence
A.Y. Chang, Y.-J. Cho, K.-C. Chen, C.-W. Chen, A. Kinaci, M.K.Y. Chan, H.-W. Lin, and R.D. Schaller
Adv. Energy Mater. 2016, 6, 1600422
Size-Dependent Coherent Phonon Plasmon Modulations and Deformation Characterization in Gold Bipyramids and Nanojavelins
M.S. Kirschner, C.M. LeThiec, X.-M. Lin, G.C. Schatz, L.X. Chen, and R.D. Schaller
ACS Photonics 2016, 3 (5), 758
Ultrafast Switching of Tunable Infrared Plasmons in Indium Tin Oxide Nanorod Arrays with Large Absolute Amplitude
P. Guo, R.D. Schaller, J.B. Ketterson, and R.P.H. Chang
Nat. Photonics 2016, 14, 267

2015

Reverse Non-Equilibrium Molecular Dynamics Demonstrates that Surface Passivation Controls Thermal Transport at Semiconductor-Solvent Interfaces
D.C. Hannah, J.D. Gezelter, R.D. Schaller, and G.C. Schatz
ACS Nano 2015, 9 (6), 6278
Picosecond Energy Transfer and Multiexciton Transfer Outpaces Auger Recombination in Binary CdSe Nano-Platelet Solids
C.E. Rowland, I. Fedin, H. Zhang, A.O. Govorov, S.K. Gray, D.V. Talapin, and R.D. Schaller
Nat. Mater. 2015, 14, 484

2014

Ultrafast Photoluminescence in Quantum-Confined Silicon Nanoparticles Arises from an Amorphous Surface Layer
D.C. Hannah, J. Yang, G.C. Schatz, U. Kortshagen, and R.D. Schaller
ACS Photonics 2014, 1 (10), 960
Silicon Nanocrystals at Elevated Temperatures: Retention of Photoluminescence and Diamond- to β-Silicon Carbide Phase Transition
C.E. Rowland, D.C. Hannah, A. Demortiere, J. Yang, R.E. Cook, V.B. Prakapenka, U. Kortshagen, and R.D. Schaller
ACS Nano 2014, 8 (9), 9219
Carrier Dynamics of Highly Quantum-Confined Indium Antimonide Nanocrystals
A.Y. Chang, W. Liu, D.V. Talapin, and R.D. Schaller
ACS Nano 2014, 8 (8), 8513
Thermal Stability of Colloidal InP Nanocrystals: Small Inorganic Ligands Boost High-Temperature Photoluminescence
C.E. Rowland, W. Liu, D.C. Hannah, M.K.Y. Chan, D.V. Talapin, and R.D. Schaller
ACS Nano 2014, 8 (1), 977

2013

Direct Measurement of Lattice Dynamics and Optical Phonon Generation in Semiconductor Nanocrystals via Femtosecond Stimulated Raman Spectroscopy
D.C. Hannah, K. Brown, R.Young, M.R. Wasielewski, G.C. Schatz, D.T. Co, and R.D. Schaller
Phys. Rev. Lett. 2013, 111, 107401
Exciton Fate in Semiconductor Nanocrystals at Elevated Temperatures: Hole Trapping Outcompetes Exciton Deactivation
C.E. Rowland and R.D. Schaller
J. Phys. Chem. C 2013, 117 (33), 17337
Ultrafast Dynamics of a Vapor-Deposited Small Molecule Organic Solar Cell
A.Y. Chang, Y.-H. Chen, H.-W. Lin and R.D. Schaller
J. Am. Chem. Soc. 2013, 135 (24), 8790

2012

Particle-level Control of Effective Thermal Conductivity in Matrix-Embedded Semiconductor Nanocrystals
D.C. Hannah, Sandrine Ithurria, G. Krylova, E. Shevchenko, D.V. Talapin, G.C. Schatz and R. D. Schaller
Nano Lett. 2012, 12 (11), 5797
On the Origin of Photoluminescence in Silicon Nanocrystals: Pressure-Dependent Structural and Optical Studies
D.C. Hannah, J.Yang, P. Podsiadlo, M. Chan, A. Demortiere, D.J. Gosztola, V.B. Prakapenka, G.C. Schatz, U. Kortshagen, and R.D. Schaller
Nano Lett. 2012, 12 (8), 4200

2011

Observation of Size-Dependent Thermalization in CdSe Nanocrystals using Time-Resolved Photoluminescence Spectroscopy
D.C. Hannah, N.J. Dunn, S. Ithurria, D.V. Talapin, L.X. Chen, M. Pelton, G.C. Schatz and R.D. Schaller
Phys. Rev. Lett. 2011, 107, 177403

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