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Jennifer A. Hollingsworth


Nanophotonics and Optical Nanomaterials

Developing new synthetic approaches to create novel functional nanomaterials, specialities include semiconductor quantum dots to hybrid composite nanomaterials.



Ph.D., Inorganic Chemistry, Washington University, 1999

B.A., Chemistry, Grinnell College, 1992


LANL Positions

Technical Staff Member, Scientist 4, Center for Integrated Nanotechnologies (CINT) and Materials Physics & Applications Division 2010 – present

Technical Staff Member, Scientist 4, Center for Integrated Nanotechnologies (CINT) and Chemistry Division 2006 – 2010

Technical Staff Member, Chemistry Division 2001 – 2006

Director’s Funded Postdoctoral Fellow, Chemistry Division 1999 – 2001



LANL Fellows Prize for Research (2013)

LANL Awards for Outstanding Scientific Achievement (2010, 2006, 2001)

LANL Associate Directorate for Chemistry, Life, & Earth Sciences Achievement Award (2009)

LANL Women’s Career Development Mentoring Award (2005)

LANL Distinguished Postdoctoral Performance Award (Small Team) (2002)

LANL Director's Postdoctoral Fellow (1999-2001)

NASA Graduate Student Researchers Program Center Fellow (1996-1999)

MRS Graduate Student Award Finalist (Fall, 1997)

Phi Beta Kappa (1992-present)

National Merit Scholarship, Grinnell College,  (1988-1992)



7,935,419 (2011): “Thick-shell Nanocrystal Quantum Dots"

7,261,940 (2007): “Multifunctional Nanocrystals"

6,819,692 (2004): “Optical amplifiers and lasers”



Keller, A. M.; Ghosh, Y.; DeVore, M. S.; Phipps, M. E.; Stewart, M. H.; Lidke, D. S.; Wilson, B. S.; Hollingsworth, J. A.;* Werner, J. H.*  3-Dimensional Tracking of Non-blinking ‘Giant’ Quantum Dots in Live Cells. Submitted 2014.

Acharya, K. P; Ji; Z.; Holesinger, T. G.; Crisp, J. A.; Ivanov, S. A.; Sykora,M.; and Hollingsworth, J. A. Layer-by-Layer Fabrication of Nanowire Sensitized Solar Cells: Geometry-Independent Integration. Submitted 2014.

Mangum, B. D., Wang, F., Dennis, A., Hollingsworth, J. A. & Htoon, H. Competition between Auger Recombination and Hot Electron Trapping in Blinking of Type II InP/CdS Nanocrystals. Submitted 2014.

Mangum, B. D.; Sampat, S.; Ghosh, Y.; Hollingsworth, J. A.; Htoon, H.; Malko, A. V. Influence of Core Size on Biexciton Quantum Yield in Giant CdSe/CdS Nanocrystals. In Press, Nanoscale 2014.

Hollingsworth, J. A. Nanoscale engineering facilitated by controlled synthesis: From structure to function. Coordin. Chem. Rev. (Invited Review Article) 2014, 263-64, 197-216.

Nagy, A.; Hollingsworth, J. A.; Hu, B.; Steinbrück, A.; Stark, P. C.; Rios-Valdez, C.; Vuyisich, M.; Stewart, M.; Atha, D. H.; Nelson, B. C.; Iyer, R. Functionalization-Dependent Induction of Cellular Survival Pathways by CdSe Quantum Dots in Primary Normal Human Bronchial Epithelial Cells. ACS Nano 2013, 7, 8397-8411.

Laocharoensuk, R.; Palaniappan, K.; Smith, N. A.; Dickerson, R. M.; D. Werder, Baldwin, J. K.; Hollingsworth, J. A. Flow-based solution–liquid–solid nanowire synthesis, Nature Nanotechnology 2013 8, 660-666.

Hollingsworth, J. A. Heterostructuring Nanocrystal Quantum Dots Toward Intentional Suppression of Blinking and Auger Recombination. (Invited Review Article) Chem. Mater. 2013, 25, 1318–1331.

Mangum, B. D., Ghosh, Y., Hollingsworth, J. A.; Htoon, H. Disentangling the Effects of Clustering and Multi-exciton Emission in Second-Order Photon Correlation Experiments. Opt. Express. 2013, 21, 7419-26.

Park, Y.-S.; Ghosh, Y.; Xu, P.; Mack, N. H.; Wang, H.-L.; Hollingsworth, J. A.; Htoon, H. Single-Nanocrystal Photoluminescence Spectroscopy Studies of Plasmon-Multiexciton Interactions at Low Temperature. J. Phys. Chem. Lett. 4, 1465-1470 2013.

Park, Y.-S.; Ghosh, Y.; Chen, Y.; Piryatinski, A.; Xu, P.; Mack, N. H.; Wang, H.-L.; Klimov, V. I.; Hollingsworth, J. A.; Htoon, H. Super-Poissonian Statistics of Photon Emission from Single Core-Shell Nanocrystals Coupled to Metal Nanostructures. Phys. Rev. Lett. 110, 117401 2013.

Dennis, A. M.; Mangum, B.; Piryatinski, A.; Park, Y.-S.; Hannah, D.; Casson, J.; Williams, D.; Schaller, R.; Htoon, H.; Hollingsworth, J. A. Suppressed Blinking and Auger Recombination in Near-Infrared Type-II InP/CdS Nanocrystal Quantum Dots. Nano Lett. 2012 12, 5545-5551.

Ghosh, Y.; Mangum, B.D.; Casson, J. L.; Williams, D. J.; Htoon, H.; Hollingsworth, J. A. New Insights into the Complexities of Shell Growth and the Strong Influence of Particle Volume in Non-Blinking “Giant” Core/Shell Nanocrystal Quantum Dots. J. Am. Chem. Soc. 2012, 134, 9634–9643.

Nagy, A.; Steinbrück, A.; Gao, J.; Doggett, N.; Hollingsworth, J. A.; Iyer, R. Comprehensive analysis of the effects of CdSe quantum dot size, surface charge, and functionalization on primary human lung cells. ACS Nano 2012 6, 4748-62.

Kundu, J.; Ghosh, Y.; Dennis, A. M.; Htoon, H.; Hollingsworth, J. A. Giant Nanocrystal Quantum Dots: Stable Down-Conversion Phosphors that Exploit a Large Stokes Shift and Efficient Shell-to-Core Energy Relaxation. Nano Lett., 2012, 12, 3031-3037.

Pal, B.N.; Ghosh, Y.; Brovelli, S.; Laocharoensuk, R.; Klimov, V.I.; Hollingsworth, J.A.*; Htoon, H.* ‘Giant’ CdSe/CdS Core/Shell Nanocrystal Quantum Dots As Efficient Electroluminescent Materials: Strong Influence of Shell Thickness on Light-Emitting Diode Performance. Nano Lett. 2012, 12, 331 (*co-corresponding authors).

Galland, C.; Ghosh, Y.; Steinbruck, A.; Hollingsworth, J. A.; Htoon, H.; Klimov, V. I. Lifetime blinking in nonblinking nanocrystal quantum dots. Nature Comm. 2012, 3:908.

Lin, Q.; Xu, Y.; Fu, E.; Baber, S.; Bao, Z.; Yu, L.; Deng, S.; Kundu, J.; Hollingsworth, J.; Bauer, E.; McCleskey, T. M.; Burrell, A. K.; Jia, Q.; Luo, H. Polymer-assisted chemical solution approach to YVO4:Eu nanoparticle networks. J. Mater. Chem., 2012, 22, 5835.

Galland, C.; Ghosh, Y.; Steinbrück, A.; Sykora, M.; Hollingsworth, J.A.; Klimov, V.I.; Htoon, H. Two types of luminescence blinking revealed by spectroelectro-chemistry of single quantum dots. Nature 2011, 479, 203-207.

Malko, A., Y. Park, S. Sampat, C. Galland, J. Vela, Y. Chen, J. Hollingsworth, V. Klimov, and H. Htoon. Pump-intensity- and shell-thickness-dependent evolution of photoluminescence blinking in individual core/shell CdSe/CdS nanocrystals. Nano Lett. 2011, 11, 5213.

Brovelli, S.; Schaller, R. D.; Crooker, S. A.; Garcia-Santamaria, F.; Chen, Y.; Viswanatha, R.; Hollingsworth, J. A.; Htoon, H.; Klimov, V. I. Nano-engineered electron–hole exchange interaction controls exciton dynamics in core–shell semiconductor nanocrystals. Nature Comm. 2011, 2, 280.

Achermann, M.; Jeong, S.; Balet, L.; Montano, G.A.; Hollingsworth, J.A. Efficient Quantum Dot-Quantum Dot and Quantum Dot-Dye Energy Transfer in Biotemplated Assemblies. ACS Nano 2011, 5, 1761-68.

García-Santamaría, F.; Brovelli, S.; Viswanatha, R.; Hollingsworth, J. A.; Htoon, H.; Crooker, S. A.; Klimov, V. I. Breakdown of Volume Scaling in Auger Recombination in CdSe/CdS Heteronanocrystals: The Role of the Core-Shell Interface. Nano Lett., 2011, 11, 687.

Park, Y.-S.; Malko, A. V.; Vela, J.; Chen, Y.; Ghosh, Y.; García-Santamaría, F.; Hollingsworth, J. A.; Klimov, V. I.; Htoon, H. Near-Unity Biexciton Emission Quantum Yields in Individual CdSe/CdS Nanocrystals Revealed by Two-Photon-Correlation and Photoluminescence-Saturation Measurements. Phys. Rev. Lett. 2011, 106, 187401-1-4.

Rivera, E. M.; Trujillo-Provencio, C.; Steinbruck, A.; Rastogi, P.; Dennis, A.; Hollingsworth, J.; Serrano, E. E. Imaging heterostructured quantum dots in cultured cells with epifluorescence and transmission electron microscopy. Proc. SPIE 2011, 7909, 79090N.

Vela, J.; Htoon, H.; Chen, Y.; Park, Y.-S.; Ghosh, Y.; Goodwin, P.M.; Werner, J.H.; Wells, N. P.; Casson, J. L.; Hollingsworth, J. A. Effect of shell thickness and composition on blinking suppression and the blinking mechanism in ‘giant’ CdSe/CdS nanocrystal quantum dots. J. Biophotonics 2010, 3, 706-717.

Htoon, H.; Malko, A. V.; Bussian, D.; Vela, J.; Chen, Y.; Hollingsworth, J. A.; Klimov, V. I. Highly Emissive Multiexcitons in Steady-State Photo-luminescence of Individual “Giant” CdSe/CdS Core/Shell Nanocrystals. Nano Lett. 2010, 10, 2401-07.

Wooten, A.; Werder, D.; Williams, D.; Casson, J.; Hollingsworth, J. A. Solution-Liquid-Solid Growth of Ternary Cu-In-Se Semiconductor Nanowires from Multiple- and Single-Source Precursors. J. Am. Chem. Soc. 2009, 131, 16177-16188.

García-Santamaría, F.; Chen, Y.; Vela, J.; Schaller, R. D.; Hollingsworth, J. A., and Klimov, V. I. Suppressed Auger Recombination in “Giant” Nanocrystals Boosts Optical Gain Performance. Nano Lett., 2009, 9, 3482.  

Bussian, D. B.; Malko, A. V.; Htoon, H.; Chen, Y. F.; Hollingsworth, J. A.; Klimov, V. I. Quantum Optics with Nanocrystal Quantum Dots in Solution: Quantitative Study of Clustering. J. Phys. Chem. C 2009, 113, 2241-2246.

Hollingsworth, J.A.; Vela, J.; Yongfen Chen, et al. 'Giant' multishell CdSe nanocrystal quantum dots with suppressed blinking: novel fluorescent probes for real-time detection of single-molecule events. Proc. SPIE (invited) 2009, 718904-11.

Prasankumar, R. P.; Upadhya,P. C.; Li, Q.; Smith, N.; Choi, S. G.; Azad, A. K.; Talbayev, D.; Wang, G. T.; Fischer, A. J.; Hollingsworth, J.; et al. Ultrafast carrier dynamics in semiconductor nanowires. Proc. SPIE 2009, 7406.

Vela, J.; Prall, B.; Rastogi, P.; Werder, D.; Casson, J.; Williams, D.; Klimov, V. I., and Hollingsworth, J. A. Sensitization and Protection of Lanthanide Ion Emission in In2O3:Eu Nanocrystal Quantum Dots. J. Phys. Chem C 2008, 112, 20246.

Vela, J. and Hollingsworth, J. A. "Semiconductor Nanocrystals: Doped Compositions” in Nanomaterials: Inorganic and Bioinorganic Perspectives, Encyclopedia of Inorganic Chemistry, 2nd ed., John Wiley & Sons, Ltd., New York, 2008.

Wang, F.; Yu, H.; Jeong, S.; Pietryga, J. M.; Hollingsworth, J. A.; Gibbons, P. C., and Buhro, W. E. Scaling of the Effective Band Gaps in Indium-Arsenide Quantum Dots and Wires. ACS Nano 2008, 2, 1903-1913

Chen, Y.; Vela, J.; Htoon, H.; Casson, J. L.; Werder, D. J.; Bussian, D. A.; Klimov, V. I., and Hollingsworth, J. A., “Giant” multishell CdSe nanocrystal quantum dots with suppressed blinking. J. Am. Chem. Soc. 2008, 130, 5026-5027. Cited >200 times.

Pietryga, J. M.; Werder, D. J.; Williams, D. J.; Casson, J. L.; Schaller, R. D.; Klimov, V. I., and Hollingsworth, J. A. Utilizing the lability of lead selenide to produce heterostructured nanocrystals with bright, stable infrared emission. J. Am. Chem. Soc. 2008, 130, 4879-4885. Cited >100 times

Kanatzidis, M. G. et al. Report from the 3rd Workshop on Future Directions of Solid-State Chemistry: The Status of Solid-State Chemistry and Its Impact in the Physical Sciences. Progress in Solid State Chemistry 2008, 36, 1-133.

Pietryga, J. M.; Casson, J. L.; Schaller, R. D.; Klimov, V. I.; Hollingsworth, J. A. Cadmium-stabilized lead selenide nanocrystals for use in solar cells. Prepr. Paps. Am. Chem. Soc., Div. Fuel Chem. 2007, 52, 822-3.

Jeong, S. and Hollingsworth, J. A. Polymerization of nanocrystal quantum dot-tubulin bioconjugates. Special Issue of the IEEE Transactions on Nanobioscience on "Colloidal Quantum Dots for Biomedical Applications” 2006, 5, 239.

Achermann, M.; Bartko, A. P.; Hollingsworth, J. A.; Klimov, V. I. The effect of Auger heating on intraband carrier relaxation in semiconductor quantum rods. Nature Phys. 2006, 2, 557.

Sapra, S; Nanda, J; Pietryga, J. M.; Hollingsworth, J. A.; Sarma, D. D. Unraveling internal structures of highly luminescent PbSe nanocrystallites using variable-energy synchrotron radiation photoelectron spectroscopy. J. Phys. Chem. B 2006, 110, 15244.

Jeong, S.; Achermann, M.; Nanda, J.; Ivanov, S.; Klimov, V. I.; Hollingsworth, J. A. Effect of the thiol-thiolate equilibrium on the photophysical properties of aqueous CdSe/ZnS nanocrystal quantum dots. J. Am. Chem. Soc. 2005, 127, 10126-10127. Cited >100 times

Hollingsworth, J. A., “Semiconductor Nanocrystal Quantum Dots” in Encyclopedia of Inorganic Chemistry, 2nd Ed., John Wiley & Sons, Ltd., 2005.

Furis, M.; Hollingsworth, J. A.; Klimov, V. I.; Crooker, S. A. Time- and polarization-resolved optical spectroscopy of colloidal CdSe nanocrystal quantum dots in high magnetic fields. J. Phys. Chem. B 2005, 109, 15332.

Kim, H., Achermann, M.; Balet, L. P.; Hollingsworth, J. A.; Klimov, V. I. Synthesis and characterization of Co/CdSe core/shell nanocomposites: Bifunctional magnetic-optical nanocrystals. J. Am. Chem. Soc. 2005, 127, 544. Cited >250 times

Pietryga, J. M.; Schaller, R. D.; Werder, D.; Stewart, M. H.; Klimov, V. I.; Hollingsworth, J. A. Pushing the band gap envelope: Mid-infrared emitting colloidal PbSe quantum dots. J. Am. Chem. Soc. 2004, 126, 11752. Cited >200 times

Malko, A. V.; Mikhailovsky, A. A.; Petruska, M. A.; Hollingsworth, J. A.; Klimov, V. I. Interplay between optical gain and photoinduced absorption in CdSe nanocrystals. J. Phys. Chem. B 2004, 108, 5250.

Hollingsworth, J. A. and Klimov, V. I. “”Soft” chemical synthesis and manipulation of semiconductor nanocrystals” in Semiconductor and Metal Nanocrystals: Synthesis, Electronic and Optical Properties, Marcel Dekker, New York, November 2003.

Achermann, M.; Hollingsworth, J. A., Klimov, V. I.  Phys. Rev. B 2003, 68, 245302: “Multiexcitons confined within a subexcitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals.”

Htoon, H.; Hollingsworth, J. A.; Dickerson, R.; Klimov, V. I. Effect of zero- to one-dimensional transformation on multiparticle Auger recombination in semiconductor quantum rods. Phys. Rev. Lett. 2003, 91, 22, 227401.

Htoon, H.; Hollingworth, J. A.; Malko, A. V.; Dickerson, R.; Klimov, V. I. Light amplification in semiconductor nanocrystals: Quantum rods versus quantum dots. Appl. Phys. Lett. 2003, 82, 26, 4776.

Hollingsworth, J. A.; Banger, K. K.; Jin, M. H. C.; Harris, J. D.; Cowen, J. E.; Bohannan, E. W.; Switzer, J. A.; Buhro, W.; Hepp, A. F. Single source precursors for fabrication of I-III-VI2 thin-film solar cells via spray CVD. Thin Solid Films 2003, 431, 63.

Crooker, S. A.; Barrick, T.; Hollingsworth, J. A., and Klimov, V. I. Ultrafast Coherent Terahertz Spectroscopy in High Magnetic Fields and Directed Energy Flows in Quantum Dot Assemblies. Acta Phys. Polon. A 2003, 104, 113.

Crooker, S. A.; Barrick, T.; Hollingsworth, J. A.; Klimov, V. I. Multiple temperature regimes of radiative decay in CdSe nanocrystal quantum dots: Intrinsic limits to the dark-exciton lifetime. Appl. Phys. Lett. 2003, 82, 2793.

Crooker, S. A.; Hollingsworth, J. A.; Tretiak, S.; Klimov, V. I. Spectrally resolved dynamics of energy transfer in quantum-dot assemblies: Towards engineered energy flows in artificial materials. Phys. Rev. Lett. 2002, 89, 18, 186802.

Xu, S.; Mikhailovsky, A. A.; Hollingsworth, J. A.;  Klimov, V. I. Hole intraband relaxation in strongly confined quantum dots: Revisiting the "phonon bottleneck" problem. Phys. Rev. B 2002, 6504, 5319.

Malko, A. V.; Mikhailovsky, A. A.; Petruska, M. A.; Hollingsworth, J. A.; Htoon, H.; Klimov, V. I. From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids. Appl. Phys. Lett. 2002, 81, 1303.

Mikhailovsky, A. A.; Malko, A. V.; Hollingsworth, J. A.; Bawendi, M. G.; Klimov, V. I. Multiparticle interactions and stimulated emission in chemically synthesized quantum dots. Appl. Phys. Lett. 2002, 80, 2380.

Baner, K. K.; Hollingsworth, J. A.; Harris, J. D.; Cowen, J.; Buhro, W. E.; Hepp, A. F. Ternary single-source precursors for polycrystalline thin-film solar cells. Appl. Organomet. Chem. 2002, 16, 617.

Kraabel, B.;  Malko, A.;  Hollingsworth, J.; Klimov, V. I. Ultrafast dynamic holography in nanocrystal solids. Appl. Phys. Lett. 2001, 78, 1814.

Henderson, D. O.; Mu, R.; Ueda, A.; Wu, M. H.; Gordon, E. M.; Tung, Y. S.; Huang, M.; Keay, J.; Feldman, L. C.; Hollingsworth, J. A.; Buhro, W. E.; Harris, J. D.; Hepp, A. F.; Raffaelle, R. P. Optical and structural characterization of copper indium disulfide thin films. Mater. Design 2001, 22, 585.

Hollingsworth, J. A.; Mikhailovsky, A. A.; Malko, A.; Klimov, V. I.; Leatherdale, C. A.; Bawendi, M. Nanocrystal quantum dots: Building blocks for tunable optical amplifiers and lasers. (featured article) Mater. Res. Soc. Symp. – Proc. 2001, 667, G61.

Hollingsworth, J. A.; Buhro, W. E.; Poojary, D. M.; Clearfield, A. Catalyzed growth of a metastable InS crystal structure as colloidal crystals. J. Am. Chem. Soc. 2000, 122, 14, 3562.

Klimov, V. I., Mikhailovsky, A. A., Xu, S., Malko, A., Hollingsworth, J. A., Leatherdale, C. A., Eisler, H. J., Bawendi, M. G. Optical gain and stimulated emission in nanocrystal quantum dots. Science, 2000 290, 5490, 314.

Hollingsworth, J. A.; Hepp, A. F., and Buhro, W. E. Spray CVD of Copper Indium Disulfide Films: Control of Microstructure and Crystallographic Orientation. Advanced Materials CVD 1999, 5, 3, 105.

Hollingsworth, J. A. and Buhro, W. E. Low-temperature, solution-based routes to nanocrystalline InS powders and thin films. Mater. Res. Soc. Symp. – Proc., 1998, 495, 202.

Hollingsworth, J. A.; Buhro, W. E.;  Hepp, A. F.; Jenkins, P. P.; Stan, M. A. Spray chemical vapor deposition of CuInS2 thin films for application in solar cell devices. Mater. Res. Soc. Symp. – Proc., 1998, 495, 171.

Goel, S. C.; Hollingsworth, J. A.; Beatty, A. M.; Robinson, K. D.; Buhro, W. E. Preparation of volatile molecular lithium-niobium alkoxides. Crystal structures of [Nb(µ-OCH2SiMe3)(OCH2SiMe3)4]2 and [LiNb(µ3-OCH2SiMe3)-(µ2-OCH2SiMe3)2(OCH2SiMe3)3]2. Polyhedron 1998, 17, 781.

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