Postdoctoral fellow, Center for Integrated Nanotechnologies, Los Alamos National Laboratory/Sandia National Laboratories
Research Summary
Quantum optics of semiconductor nanomaterials
Excitonic and electronic properties of optically active materials
Plasmonic and dielectric metamaterials; nanophotonics and nano-optics
High-resolution single molecule/particle optical spectroscopy and imaging
Magneto-optical spectroscopy
Recent publications
L. Peng, W. Cho, X. Zhang, D. Talapin, X. Ma, “Observation of biexciton emission from single semiconductor nanoplatelets,” Phys. Rev. Mater. 2021, accepted
K. Trerayapiwat, S.-H. Lohmann, X. Ma, S. Sharifzadeh, “Tuning Spin-Orbit Coupling in (6,5) Single-Walled Carbon Nanotube Doped with sp3 Defects,” J. Appl. Phys. 2021, 129, 014309
S.-H. Lohmann, K. Trerayapiwat, J. Niklas, O. Poluektov, S. Sharifzadeh, X. Ma, “sp3-Functionalization of Single-Walled Carbon Nanotubes Creates Localized Spins,” ACS Nano 2020, 14, 17675
L. Peng, H. Chan, P. Choo, T. W. Odom, S. K. R. S. Sankaranarayanan, X. Ma, “Creation of Single-Photon Emitters in WSe2 Monolayers Using Nanometer-Sized Gold Tips,” Nano Lett. 2020, 20, 5866
W. Wang, X. Ma, “Strain-Induced Trapping of Indirect Excitons in MoSe2/WSe2 Heterostructures,” ACS Photon. 2020, 7, 2460
Y. Wang, S. Guo, H. Luo, C. Zhou, H. Lin, X. Ma, Q. Hu, M. Du, B. Ma, W. Yang, X. Lü, “Reaching 90% photoluminescence quantum yield in one-dimensional metal halide C4N2H14PbBr4 by pressure-suppressed non-radiative loss,” J. Am. Chem. Soc. 2020, 142, 16001
L. Peng, H. Zhu, O. Chen, W. Wang, X. Ma, “Influence of local structures on the energy transfer efficiencies of quantum-dot films,” Phys. Rev. B 2020, 102, 035437
J. Jiang, D. Wang, M. Wu, P. Peng, F.-F. Li, F. Liu, R. Jing, X. Ma, Y. Chao, Z. Xiao, Q. Jiang, “Ultrasonication-assisted trace amount solvent synthesis of Cs4PbBr6 crystal with ultra-bright green light emission,” APL Mater. 2020, 8, 071115
C. L. Cortes, S. Adhikari, X. Ma, S. K. Gray, “Accelerating quantum optics experiments with statistical learning,” Appl. Phys. Lett. 2020, 116, 184003
L. Peng, M. Otten, A. Hazarika, I. Coropceanu, M. Cygorek, G. P. Wiederrecht, P. Hawrylak, D. Talapin, X. Ma, “Bright Trion Emission from Semiconductor Nanoplatelets,” Phys. Rev. Mater. 2020, 4, 056006
H. Tsai, C. Liu, E. Kinigstein, M. Li, S. Tretiak, M. Cotlet, X. Ma, X. Zhang, W. Nie, “Critical Role of Organic Spacers for Bright 2D Layered Perovskites Light‐Emitting Diodes,” Adv. Sci. 2020, 7, 1903202
X. Wang, X. Ma, E. Shi, P. Lu, L. Dou, X. Zhang, H. Wang, “Large‐Scale Plasmonic Hybrid Framework with Built‐In Nanohole Array as Multifunctional Optical Sensing Platforms,” Small, 2020, 16, 1906459
Z. Gan, Y. Liu, L. Wang, S. Jiang, N. Xia, Z. Yan, X. Wu, J. Zhang, W. Gu, L. He, J. Dong, X. Ma, J. Kim, Z. Wu, Y. Xu, Y. Li, Z. Wu, “Distance makes a difference in crystalline photoluminescence,” Nat. Commun. 2020, 11, 5572
Q. Qian, L. Peng, N. P. Lopez, K. Fujisawa, K. Zhang, X. Zhang, T. H. Choudhury, J. Redwing, M. Terrones, X. Ma, S. Huang, “Defect Creation in WSe2 with Microsecond Photoluminescence Lifetime by Focused Ion Beam Irradiation,” Nanoscale, 2020, 12, 2047
L. Peng, X. Wang, I. Coropceanu, A. B. Martinson, H. Wang, D. V. Talapin, X. Ma, “Titanium Nitride Modified Photoluminescence from Single Semiconductor Nanoplatelets,” Adv. Funct. Mater. 2020, 30, 1904179
M. E. Sykes, M. Kim, X. Wu, G. P. Wiederrecht, L. Peng, Y. Wang, D. J. Gosztola, X. Ma, “Ultrafast Exciton Trapping at sp3 Quantum Defects in Carbon Nanotubes,” ACS Nano 2019, 13, 13264
X. Li, J. A. Martínez-González, O. Guzmán, X. Ma, K. Park, C. Zhou, Y. Kambe, H. M. Jin, J. Dolan, P. F. Nealey, J. J. de Pablo, “Sculpted grain boundaries in soft crystals,” Sci. Adv. 2019, 5, eaax9112
N. F. Hartmann, M. Otten, I. Fedin, D. Talapin, M. Cygorek, P. Hawrylak, M. Korkusinski, S. Gray, A. Hartschuh, X. Ma, “Uniaxial transition dipole moments in semiconductor quantum rings caused by broken rotational symmetry,” Nat. Commun. 2019, 10, 3253
Y. Yuan, X.-F. Liu, X. Ma, X. Li, J. Xiao, X. Li, H.-L. Zhang, L. Wang, “Large tunable band gap and prolonged carrier lifetime of (C4H9NH3)2PbI4 under high pressure,” Adv. Sci. 2019, 1900240
Z. Chen, G. De Queiros Silveira, X. Ma, Y. Xie, Y. Wu, E. Barry, T. Rajh, H. C. Fry, P. D. Laible, E. A. Rozhkova, “Light‐Gated Synthetic Protocells for Plasmon‐Enhanced Chemiosmotic Gradient Generation and Phosphorylation,” Angew. Chem. Int. Ed. 2019, 131, 4950
X. Ma, B. T. Diroll, W. Cho, I. Fedin, R. D. Schaller, D. V. Talapin, G. P. Wiederrecht, “Anisotropic Photoluminescence from Isotropic Optical Transition Dipoles in Semiconductor Nanoplatelets”, Nano Lett., 2018, 18, 4647
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, R. D. Schaller, “Hyperbolic Dispersion Arising from Anisotropic Excitons in Two-Dimensional Perovskites”, Phys. Rev. Lett. 2018, 121, 127401
C. Husko, J. Kang, G. Moille, J. Wood, Z. Han, D. Gosztola, X. Ma, S. Combrie, A. De Rossi, M. Hersam, X. Checoury, J. Guest, “Silicon-Phosphorene Nanocavity-Enhanced Optical Emission at Telecommunications Wavelengths”, Nano Lett. 2018, 18, 6515
X. Ma, B. T. Diroll, W. Cho, I. Fedin, R. D. Schaller, D. V. Talapin, S. K. Gray, G. P. Wiederrecht, D. J. Gosztola, “Size-Dependent Biexciton Quantum Yields and Carrier Dynamics of Quasi-Two-Dimensional Core/Shell Nanoplatelets”, ACS Nano, 2017, 11, 9119
X. Ma, S. Cambré, W. Wenseleers, S. K. Doorn, H. Htoon, “Quasiphase Transition in a Single File of Water Molecules Encapsulated in (6,5) Carbon Nanotubes Observed by Temperature-Dependent Photoluminescence Spectroscopy”, Phys. Rev. Lett. 2017, 118, 027402
B. T. Diroll, X. Ma, Y. Wu, C. B. Murray, “Anisotropic Cracking of Nanocrystal Superlattices”, Nano Lett.,2017, 17, 6501
C. J. Hanson, N. F. Hartmann, A. Singh, X. Ma, W. J. DeBenedetti, J. L. Casson, J. K. Grey, Y. J. Chabal, A. V. Malko, M. Sykora, A. Piryatinski, H. Htoon, J. A. Hollingsworth, “Giant PbSe/CdSe/CdSe Quantum Dots: Crystal-Structure-Defined Ultrastable Near-Infrared Photoluminescence from Single Nanocrystals”, J. Am. Chem. Soc., 2017, 139, 11081
X. Ma, A. R. James, N. F. Hartmann, J. K. Baldwin, J. Dominguez, M. B. Sinclair, T. S. Luk, O. Wolf, S. Liu, S. K. Doorn, H. Htoon, I. Brener, “Solitary Oxygen Dopant Emission from Carbon Nanotubes Modified by Dielectric Metasurfaces”, ACS Nano, 2017, 11, 6431
X. Ma, N. F. Hartmann, K. A. Velizhanin, J. KS Baldwin, L. Adamska, S. Tretiak, S. K. Doorn, H. Htoon, “Multi-exciton emission from solitary dopant states of carbon nanotubes”, Nanoscale, 2017, 9, 16143
X. He, N. F. Hartmann, X. Ma, Y. Kim, R. Ihly, J. L. Blackburn, W. Gao, J. Kono, Y. Yomogida, A. Hirano, T. Tanaka, H. Kataura, H. Htoon, S. K. Doorn, “Tunable room-temperature single-photon emission at telecom wavelengths from sp3 defects in carbon nanotubes”, Nature Photon. 2017, 11, 577
Postdoctoral positions are available. Interested applicants can contact Dr. Xuedan Ma directly for consideration.
