Accepted and published research papers or other publications from SfeirLab

Dr. Matthew Y. Sfeir

Associate Professor, Photonics Initiative, ASRC
Associate Professor of Physics, The Graduate Center, CUNY

SfeirLab Photonics
Advanced Science Research Center
85 St. Nicholas Terrace, 2nd Floor
New York, NY 10031 





Tuning Singlet Fission in π-Bridge-π Chromophores














A direct mechanism of ultrafast intramolecular singlet fission in pentacene dimers
E. G. Fuemmeler, S. N. Sanders, A. B. Pun, E. Kumarasamy, T. Zeng, K. Miyata, M. L. Steigerwald, X-Y. Zhu, M. Y. Sfeir,* L. M. Campos,* N. Ananth,*
ACS Central Science, 2 (5), 316 (2016).

Excitonic Lasing in Solution-Processed Subwavelength Nanosphere Assemblies
K. Appavoo, X. Liu, V. Menon, M. Y. Sfeir
Nano Letters, 16 (3), 2004 (2016).

Effects of single atom doping on the ultrafast electron dynamics of M1Au24(SR)18 (M = Pd, Pt) nanoclusters
M. Zhou, H. Qian, M. Y. Sfeir, K. Nobusada, R. Jin
Nanoscale, 8, 7163 (2016).

Intramolecular Singlet Fission in Oligoacene Heterodimers
S. N. Sanders, E. Kumarasamy, A. B. Pun, M. L. Steigerwald, M. Y. Sfeir,* L. M. Campos,*
Angewandte Chemie, 128 (10), 3434 (2016).

Properties of Poly- and Oligo-Pentacenes Synthesized from Modular Building Blocks
E. Kumarasamy, S. N. Sanders, A. B. Pun, S. Vaselabadi, J. Z. Low, M. Y. Sfeir, M. Steigerwald, G. Stein, L. M. Campos
Macromolecules, 49 (4), 1279 (2016).

Directional Charge Transfer Mediated by Mid-Gap States: A Transient Absorption Spectroscopy Study of CdSe Quantum Dot/β-Pb0.33V2O5 Heterostructures
C. C. Milleville, K. E. Pelcher, M. Y. Sfeir, S. Banerjee, and D. F. Watson
Journal of Physical Chemistry C, 120 (9), 5221 (2016).

Static and Dynamic Optical Properties of La1-xSrxFeO3-δ: The Effects of A-site and Oxygen Stoichiometry
S. Y. Smolin, M. D. Scafetta, A. K. Choquette, M. Y. Sfeir, J. B. Baxter, S. J. May
Chemistry of Materials, 28 (1), 97 (2016).


The Effect of Surface Stoichiometry on Blinking and Hole Trapping Dynamics in Nanocrystals
E. Busby, N. C. Anderson, J. S. Owen, M. Y. Sfeir
Journal of Physical Chemistry C, 119 (49), 27797 (2015).

Molecular helices as electron acceptors in high-performance bulk heterojunction solar cells
Y. Zhong, M. T. Trinh, R. Chen, G. E. Purdum, P. P. Khlyabich, M. Sezen, S. Oh, H. Zhu, B. Fowler, B. Zhang, W. Wang, C.-Y. Nam, M. Y. Sfeir, C. T. Black, M. L. Steigerwald, Y.-L. Loo, F. Ng, X.-Y. Zhu, C. Nuckolls
Nature Communications, 6, 8242 (2015).

Panchromatic polymer–polymer ternary solar cells enhanced by Förster resonance energy transfer and solvent vapor annealing
T. Goh, J.-S. Huang, B. Bartolome, M. Y Sfeir, M. Vaisman, M. L Lee, A. D Taylor
Journal of Materials Chemistry A, 3, 18611 (2015).

Quantitative Intramolecular Singlet Fission in Bipentacene
S. N. Sanders, A. B. Pun, M. T. Trinh, B. Choi, J. Xia, E. J. Taffet, J. Z. Low, J. R. Miller, X. Roy, X.-Y. Zhu, M. L. Steigerwald,* M. Y. Sfeir,* L. M. Campos*
Journal of the American Chemical Society, 137 (28), 8965 (2015).
*co-corresponding authors

Intra- to Inter-Molecular Singlet Fission
M. T. Trinh, Y. Zhong, T. Schiros, Q. Chen, S. Jockusch, M. Y. Sfeir, M. Steigerwald, C. Nuckolls, X. Y. Zhu
Journal of Physical Chemistry C, 119 (3), 1312 (2015).

Predicting Excitonic Gaps of Semiconducting Single Walled Carbon Nanotubes From a Field Theoretic Analysis
R. M. Konik, M. Y. Sfeir, J. A. Misewich
Physical Review B, 91, 075417 (2015).

Light-Harvesting Nanoparticle Core–Shell Clusters with Controllable Optical Output
D. Sun, Y. Tian, Y. Zhang, Z. Xu, M. Y. Sfeir, M. Cotlet, O. Gang
ACS Nano, 9 (6) 5657 (2015).

Structural patterns at all scales in a nonmetallic chiral Au133(SR)52 nanoparticle
C. Zeng, Y. Chen, K. Kirschbaum, K. Appavoo, M. Y. Sfeir, R. Jin
Science Advances, 1 (2) e1500045 (2015).

Quantifying bulk and surface recombination processes in nanostructured water-splitting photocatalysts
K. Appavoo, M. Liu, C. T. Black, M. Y. Sfeirv
Nano Letters, 15 (2) 1076 (2015).

Fast singlet exciton decay in push-pull molecules containing oxidized thiophenes
E. Busby, J. Xia, J. Z. Low, Q. Wu, J. Hoy, L. M. Campos, M. Y. Sfeir
Journal of Physical Chemistry B, 119 (24), 7644 (2015).

Probing structure-induced optical behavior in a new class of self-activated luminescent 0D/1D CaWO4 metal oxide – CdSe nanocrystal composite heterostructures
J. Han, C. McBean, L. Wang, J. Hoy, C. Jaye, H. Liu, Z.-Q. Li, M. Y. Sfeir, D. Fischer, G. Taylor, J. Misewich, S. S. Wong
Chemistry of Materials, 27 (3), 778 (2015).

Ultrathin europium oxide nanoplatelets: ‘hidden’ parameters and controlled synthesis, unusual crystal structure, and photoluminescence properties
D. Hudry, A. M. Abeykoon, J. Hoy, M. Y. Sfeir, E. Stach, J. Dickerson
Chemistry of Materials, 27 (3), 965 (2015).

A General Design Strategy for Intramolecular Singlet Fission in Organic Materials
E. Busby, J. Xia, Q. Wu, R. Song, J. Z. Low, J. R. Miller, X-Y. Zhu, L. M. Campos, M. Y. Sfeir
Nature Materials, 14, 426 (2015).

Co-evaporated Bi-squaraine Inverted Solar Cells: Enhancement Due to Energy Transfer and Open Circuit Voltage Control
T. Goh, J.-S. Huang, E. A. Bielinski, B. A. Thompson, S. Tomasulo, L. M. Lee, M. Y. Sfeir, N. Hazari, A. D. Taylor
ACS Photonics 2 (1), 86 (2015).


Solution-Processable Donor-Acceptor Polymers with Modular Electronic Properties and Very Narrow Bandgaps
M. E. Foster, B. Zhang, D. Murtagh, Y. Liu, M. Y. Sfeir, B. M. Wong, J. D. Azoulay
Macromolecular Rapid Communications, 35 (17), 1516 (2014).

Characterization of plasmonic hole arrays as transparent electrical contacts for organic photovoltaics using high brightness Fourier transform methods
F. E. Camino, C.-Y. Nam, Y. T. Pang, J. Hoy, M. D. Eisaman, C. T. Black, M. Y. Sfeir
Journal of Modern Optics, 61 (21), 1735 (2014).

The Effects of Side-Chain-Induced Disorder on the Emission Spectra and Quantum Yields of Oligothiophene Nano-Aggregates: A Combined Experimental and MD-TDDFT Study
J. Hong; S. Jeon, J. Kim, D. Devi, K. Chacon-Madrid, W. Lee, S. Koo, J. Wildeman, M. Y. Sfeir, L. Peteanu, J. Wen, J. Ma
Journal of Physical Chemistry A, 118 (45), 10464 (2014).

Efficient organic solar cells with helical perylene diimide electron acceptors
Y. Zhong, M. T. Trinh, R. Chen, W. Wang, B. Kumar, C.-Y. Nam, M. Y. Sfeir, C. T. Black, M. L. Steigerwald, S. Xiao, F. Ng, X. Y. Zhu, C. Nuckolls
Journal of the American Chemical Society, 136 (43), 15215 (2014).

Enhanced Broadband Ultrafast Detection of Ultraviolet Emission Using Optical Kerr Gating
K. Appavoo, M. Y. Sfeir
Review of Scientific Instruments, 85 (5), 055114 (2014).

Multiphonon relaxation slows singlet fission in crystalline hexacene
E. Busby, B. Khumar, T. C. Berkelbach, A. Chernikov, Y. Zhong, X. Zhu, T. F. Heinz, M. S. Hybertsen, M. Y. Sfeir, D. R. Reichman, C. Nuckolls, O. Yaffe
Journal of the American Chemical Society, 136 (30), 10654-10660 (2014).

Universal Mechanism for Singlet Exciton Fission
S. R. Yost, J. Lee, M. W. B. Wilson, T. Wu, D. P. McMahon, R. R. Parkhurst, N. J. Thompson, D. N. Congreve, A. Rao, K. Johnson, M. Y. Sfeir, M. Bawendi, T. M. Swager, R. H. Friend, M A. Baldo, T. Van Voorhis
Nature Chemistry, 6, 492 (2014).

Role of Size and Defects in Ultrafast Broadband Emission Dynamics of ZnO Nanostructures
K. Appavoo, M. Liu, M. Y. Sfeir
Applied Physics Letters, 104 (13), 133101 (2014).

Probing Differential Optical and Coverage Behavior in Nanotube-Nanocrystal Heterostructures Synthesized by Covalent versus Non-covalent Approaches
L. Wang, J. Han, J. Hoy, F. Hu, H. Liu, M. M. Gentleman, M. Y. Sfeir, J. A. Misewich, S. S. Wong
Dalton Transactions, 43 (20), 7480 (2014).


A Hot Electron-Hole Pair Breaks the Symmetry of a Semiconductor Quantum Dot
M. T. Trinh, M. Y. Sfeir, J. J. Choi, J. S. Owen, X. Y. Zhu
Nano Letters, 13 (12), 6091 (2013).

Quantifying the Relationship between the Maximum Achievable Voltage and Current Levels in Low Bandgap Polymer Photovoltaics
D. B. Rodovsky, J. Peet, N. Shao, J. D. Azoulay, G. C. Bazan,N. Drolet, Q. Wu, M. Y. Sfeir
Journal of Physical Chemistry C, 117 (49), 25955 (2013).

Linear and Nonlinear Optical Properties of Photoresponsive [60]Fullerene Hybrid Triads and Tetrads with Dual NIR Two-Photon Absorption Characteristics
S. Jeon, J. Haley, J. Flikkema, V. Nalla, M. Wang, M. Y. Sfeir, L.-S. Tan, T. Cooper, W. Ji , M. R. Hamblin, L. Y. Chiang
Journal of Physical Chemistry C, 117 (33), 17186 (2013).

Polymer bulk heterojunction solar cells employing Förster resonance energy transfer
J.-S. Huang, T. Goh, X. Li, M. Y. Sfeir, E. A. Bielinski, S. Tomasulo, M. L. Lee, N. Hazari, A. D. Taylor
Nature Photonics, 7, 479 (2013).

Singlet Exciton Fission in a Hexacene Derivative
J. Lee, M. J. Bruzek, N. J. Thompson, M. Y. Sfeir, J. E. Anthony, M. A. Baldo
Advanced Materials, 25 (10), 1445 (2013).


Multimodal Optical Nanoprobe for Advanced In-Situ Electron Microscopy
Y. Zhu, M. Milas, M.-G. Han, J. D. Rameau, M. Y. Sfeir
Microscopy Today 20 (6), 32 (2012).

Ultrafast Supercontinuum Spectroscopy of Carrier Multiplication and Biexcitonic Effects in Excited States of PbS Quantum Dots
F. Gesuele, M. Y. Sfeir, W.K. Koh, C.B. Murray, T.F. Heinz, C.W. Wong
Nano Letters 12 (6), 2658 (2012).


Efficient Charge Separation in Multidimensional Nanohybrids
X. H. Peng, J. A. Misewich, S. S. Wong, M. Y. Sfeir
Nano Letters 11 (11), 4562 (2011).

Ultrafast Relaxation Dynamics of Rod-Shaped 25-Atom Gold Nanoclusters
M. Y. Sfeir, H. F. Qian, K. Nobusada, R. C. Jin
Journal of Physical Chemistry C 115 (14), 6200 (2011).


Ultrafast Relaxation Dynamics of [Au-25(SR)(18)](q) Nanoclusters: Effects of Charge State
H. F. Qian, M. Y. Sfeir*, R. C. Jin
Journal of Physical Chemistry C 114 (47), 19935 (2010).
*co-corresponding author

Infrared spectra of individual semiconducting single-walled carbon nanotubes: Testing the scaling of transition energies for large diameter nanotubes
M. Y. Sfeir, S. Rosenblatt, Y. Wu, H. Yang,. C. Voisin, B. Chandra, R. Caldwell, S. Berciaud, Y. Shan, G. L. Carr, T. F. Heinz, J. Hone, J. A. Misewich
Physical Review B 82 (19), 195424 (2010).

Assembly, Structure and Optical Response of Three-Dimensional Dynamically Tunable Multicomponent Superlattices
H. M. Xiong, M. Y. Sfeir, O. Gang
Nano Letters 10 (11), 4456 (2010).

The evolution of electronic structure in few-layer graphene revealed by optical spectroscopy
K. F. Mak, M. Y. Sfeir, J. A. Misewich, T. F. Heinz
Proceedings of the National Academy of Sciences 107 (34), 14999 (2010).

Covalent Synthesis and Optical Characterization of Double-Walled Carbon Nanotube-Nanocrystal Heterostructures
X. H. Peng, M. Y. Sfeir, F. Zhang, J. A. Misewich, S. S. Wong
Journal of Physical Chemistry C 114 (19), 8766 (2010).


Effect of Number of Walls on Plasmon Behavior in Carbon Nanotubes
M. Upton, R. Klie, J. Hill, T. Gog, D. Casa, W. Ku, Y. Zhu, M. Y. Sfeir, J. Misewich, G. Eres, D. Lowndes
Carbon 47 (1), 162 (2009).


Measurement of the Optical Conductivity of Graphene
K. F. Mak, M. Y. Sfeir, Y. Wu, C. Lui,, J. A. Misewich, T. F. Heinz
Physical Review Letters 101 (19), 196405 (2008).

Room-Temperature Preparation, Characterization, and Photoluminescence Measurements of Solid Solutions of Various Compositionally-Defined Single-Crystalline Alkaline-Earth Metal Tungstate Nanorods
F. Zhang, M. Y. Sfeir, J. Misewich, S. Wong
Chemistry of Materials 20 (17), 5500 (2008).


Variable electron-phonon coupling in isolated metallic carbon nanotubes observed by Raman scattering
Y. Wu, J. Maultzsch, E. Knoesel, B. Chandra, M. Huang, M. Y. Sfeir, L. E. Brus, J. Hone, T. F. Heinz
Physical Review Letters 99 (2), 027402 (2007).


Organometallic Synthesis of Graphite
E. C. Walter, T. Beetz, M. Y. Sfeir, L. E. Brus, M. L. Steigerwald
Journal of the American Chemical Society 128 (49), 15590 (2006).

Multiphonon Raman Scattering from Individual Single-Wall Carbon Nanotubes
F. Wang, W. Liu, Y.-R. Shen, Y. Wu, M. Y. Sfeir, L. Huang, J. Hone, S. O’Brien, L. E. Brus, Tony F. Heinz
Physical Review Letters 98 (4), 047402 (2006).

Optical spectroscopy of individual single-walled carbon nanotubes of defined chiral structure
M. Y. Sfeir, T. Beetz, F. Wang, L. Huang, X. M. H. Huang, M. Y. Huang, J. Hone, S.P. O’Brien, J. Misewich, L. J. Wu, Y. Zhu, T. F. Heinz, L. E. Brus
Science 312, 554 (2006).

Electrical Transport Measurements of Nanotubes with Known (n,m) Indices
B. Chandra, R. Caldwell, M. Huang, L. Huang, M. Y. Sfeir, S. P. O’Brien, T. F. Heinz, J. Hone
Physica Status Solidi B 243 (13), 3359 (2006).

Interactions between individual carbon nanotubes studied by Rayleigh scattering spectroscopy
F. Wang, M. Y. Sfeir, L. Huang, X. M. H. Huang, Y. Wu, J. Kim, J. Hone, S.P. O’Brien, L. E. Brus, T. F. Heinz
Physical Review Letters 96 (16), 167401 (2006).

Graphite, Tubular PAHs, and the Diffuse Interstellar Bands
Z. Zhou, M. Y. Sfeir, L. Zhang, M. Steigerwald, L. E. Brus
Astrophysical Journal 638 (2), L105 (2006).

Co Ultrathin Film Catalyzed Ethanol Chemical Vapor Deposition of Single-walled Carbon Nanotubes
L. Huang, B. White, M. Y. Sfeir, M. Huang, X. M. H. Huang, S. Wind, J. Hone, S. P. O’Brien
Journal of Physical Chemistry B 110 (23), 11103 (2006).


Structural Dependence of Excitonic Optical Transitions and Band-gap Energy in Carbon Nanotubes
G. Dukovic, F. Wang, D. Song, M. Y. Sfeir, T. F. Heinz, L. E. Brus
Nano Letters 5 (11), 2314 (2005).

Extracting Subnanometer Single Shells from Ultralong Multi-walled Carbon Nanotubes
B. H. Hong, J. P. Small, M. S. Purewal, A. Mullokandov, M. Y. Sfeir, F. Wang, J. Lee, T. F. Heinz, L E. Brus, P. Kim, K. S. Kim
PNAS 102 (40), 14155 (2005).

Controlled Placement of Individual Carbon Nanotubes
X. M. H. Huang, R. Caldwell, L. Huang, S. C. Jun, M. Huang, M. Y. Sfeir, L. E. Brus, S. P. O’Brien, J. Hone
Nano Letters 5 (7), 1515 (2005).


Probing Electronic Transitions in Individual Carbon Nanotubes by Rayleigh Scattering
M. Y. Sfeir, F. Wang, L. Huang, C. Chuang, J. Hone, S.P. O’Brien, T. F. Heinz, L.E. Brus
Science 306, 1540 (2004).