Anton Plech

Anton Plech

  • Laser-based Nanomaterials Research

Dr. habil. Anton Plech

Current position
  • Head of Department, X-ray scattering (Abteilungsleiter Röntgenstreumethoden)
  • Lecturer University of Konstanz (Privatdozent Uni Konstanz, Fachbereich Physik) (-> link)

 

Previous positions
  • 2002 - 2008 junior research group leader in physics, University of Konstanz (Nachwuchsgruppenleiter FB Physik Uni Konstanz)
  • 2000 – 2002 postdoctoral scientist at the European Synchrotron Radiation Facility (Wissenschaftler an der Europäischen Synchrotronstrahlungsquelle ESRF)
  • 1996 – 2000 research assistent LMU Munich (wissenschaftl. Mitarbeiter, LMU München)

 

Education
  • 2007 Habilitation, U. Konstanz
  • 2000 Promotion (doctorate), LMU München
  • 1999 Diplom im Fernstudium (distance learning) in „Medical Physics and Technology“, U. Kaiserlautern
  • 1995 Diplom Physik, LMU München

 

Prizes/Fellowships
  • 2002 Fellow of the Center for Junior Researchers ZWN Konstanz
  • 2004 Young scientist prize of the Users Organisation of the ESRF
  • 2009 Heisenberg fellowship
  • 2021 Fojtik-Henglein Prize

 

Field of research
  • Advanced X-ray methods for material structure and function analysis (X-ray reflectivity, diffuse scattering, SAXS, X-ray imaging, X-ray spectroscopy)
  • Liquids and liquid thin films (photochemistry, wetting)
  • Phase transitions in functional materials (ferroelectricity, surface melting, cavitation)
  • Nanoparticles synthesis by chemical and physical methods, e. g. laser ablation
  • Photophysics of nanomaterials and molecules

 

Recent news and highlights

 

Selected refereed publications

SCOPUS entry: 7006854115

ORCID: https://orcid.org/0000-0002-6290-9303

 

  • A. Plech, U. Klemradt, M. Huber, J. Peisl: Wetting transition of a binary liquid mixture at a solid boundary; Europhys. Lett. 49(5) (2000) 583.
  • A. Plech, M. Wulff, S. Bratos, F. Mirloup, R. Vuilleumier, F. Schotte and P. A. Anfinrud: Visualizing chemical reactions in solution by picosecond x-ray diffraction, Phys. Rev. Lett., 92 (2004) 125505.
  • A. Plech, V. Kotaidis, M. Lorenc, J. Boneberg: Femtosecond laser near-field ablation from gold nanoparticles, Nature Phys. 2 (2006) 44.
  • A. Plech, R. Cerna, V. Kotaidis, F. Hudert, A. Bartels and T. Dekorsy: A surface phase transition of supported gold nanoparticles, Nano Lett. 7 (2007) 1026.
  • A. Plech, P. Leiderer, J. Boneberg: Femtosecond near field ablation, Laser & Phot Rev. 3 (2009) 435.
  • S. Ibrahimkutty, P. Wagener, A. Menzel, A. Plech, S. Barcikowski: Nanoparticle formation in a cavitation bubble after pulsed laser ablation in liquid studied with high time resolution SAXS, Appl Phys. Lett, 101 (2012) 103104.
  • H. Bracht, S. Eon, R. Frieling, A. Plech, D. Issenmann, D. Wolf, J. Lundsgaard Hansen, A. Nylandsted Larsen, J.W. Ager III, and E.E. Haller: Thermal conductivity of isotopically controlled silicon nanostructures, New J. Physics 16 (2014) 015021.
  • S. Ibrahimkutty, P. Wagener, T. dos Santos Rolo, D. Karpov, A. Menzel, T. Baumbach, S. Barcikowski, A. Plech: A  hierarchical view on material formation during pulsed-laser synthesis of nanoparticles in liquid,  Sci. Rep. 5 (2015) 16313.
  • S. Reich, A. Letzel, A. Menzel, N. Kretzschmar, B. Gökce, S. Barcikowski, A. Plech: Early appearance of crystalline nanoparticles in pulsed laser ablation in liquids dynamics, Nanoscale 11 (2019) 6962.
  • S. Barcikowski, A. Plech, K. S. Suslick, A. Vogel: Materials synthesis in a bubble, MRS Bulletin 44 (2019) 382.

Publications since 2013


2023
Finding the best efficiency for laser machining of gold colloids
Plech, A.; Ziefuss, A. R.; Levantino, M.; Streubel, R.; Reich, S.; Reichenberger, S.
2023. ESRF Highlights 2022.: Hrsg. A. Joly, ESRF - European Synchrotron Radiation Facility
In Situ Study of the Interface-Mediated Solid-State Reactions during Growth and Postgrowth Annealing of Pd/a-Ge Bilayers
Krause, B.; Abadias, G.; Babonneau, D.; Michel, A.; Resta, A.; Coati, A.; Garreau, Y.; Vlad, A.; Plech, A.; Wochner, P.; Baumbach, T.
2023. ACS Applied Materials & Interfaces, 15 (8), 11268–11280. doi:10.1021/acsami.2c20600
2022
Multimodal X-ray imaging with Hartmann masks. PhD dissertation
Zakharova, M.
2022, October 11. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000151118
Bulk morphology of porous materials at submicrometer scale studied by dark-field x-ray imaging with Hartmann masks
Zakharova, M.; Mikhaylov, A.; Reich, S.; Plech, A.; Kunka, D.
2022. Physical Review B, 106 (14), Art.-Nr.: 144204. doi:10.1103/PhysRevB.106.144204
Speciation in nanosecond laser ablation of zinc in water
Reich, S.; Klügl, Y.; Ziefuss, A.; Streubel, R.; Göttlicher, J.; Plech, A.
2022. Science China Physics, Mechanics & Astronomy, 65 (7), Art.Nr. 274205. doi:10.1007/s11433-021-1857-1
Beamline setup for in situ measurements of particles in turbulent spray flames using small angle X-ray scattering
Simmler, M.; Meier, M.; Rank, L.; Buth, G.; Plech, A.; Nirschl, H.
2022. Proceedings of the Combustion Institute, 39 (1), 949–957. doi:10.1016/j.proci.2022.08.002
Low Efficiency of Laser Heating of Gold Particles at the Plasmon Resonance: An X-ray Calorimetry Study
Plech, A.; Ziefuß, A. R.; Levantino, M.; Streubel, R.; Reich, S.; Reichenberger, S.
2022. ACS Photonics, 9 (9), 2981–2990. doi:10.1021/acsphotonics.2c00588
2021
Photoluminescence of Fully Inorganic Colloidal Gold Nanocluster and Their Manipulation Using Surface Charge Effects
Ziefuss, A. R.; Steenbock, T.; Benner, D.; Plech, A.; Göttlicher, J.; Teubner, M.; Grimm-Lebsanft, B.; Rehbock, C.; Comby-Zerbino, C.; Antoine, R.; Amans, D.; Chakraborty, I.; Bester, G.; Nachev, M.; Sures, B.; Rübhausen, M.; Parak, W. J.; Barcikowski, S.
2021. Advanced materials, 33 (31), Art.Nr. 2101549. doi:10.1002/adma.202101549
Structural dynamics probed by X-ray pulses from synchrotrons and XFELs
Levantino, M.; Kong, Q.; Cammarata, M.; Khakhulin, D.; Schotte, F.; Anfinrud, P.; Kabanova, V.; Ihee, H.; Plech, A.; Bratos, S.; Wulff, M.
2021. Comptes rendus physique, 22 (S2), 75–94. doi:10.5802/crphys.85
Layer-by-Layer Spray-Coating of Cellulose Nanofibrils and Silver Nanoparticles for Hydrophilic Interfaces
Chen, Q.; Brett, C. J.; Chumakov, A.; Gensch, M.; Schwartzkopf, M.; Körstgens, V.; Söderberg, L. D.; Plech, A.; Zhang, P.; Müller-Buschbaum, P.; Roth, S. V.
2021. ACS applied nano materials, 4 (1), 503–513. doi:10.1021/acsanm.0c02819
2020
Shack–Hartmann wavefront sensors based on 2D refractive lens arrays and super-resolution multi-contrast X-ray imaging
Mikhaylov, A.; Reich, S.; Zakharova, M.; Vlnieska, V.; Laptev, R.; Plech, A.; Kunka, D.
2020. Journal of synchrotron radiation, 27 (3), 788–795. doi:10.1107/S1600577520002830
Phase explosion phenomena in pulsed laser ablation in liquids
Reich, S.; Letzel, A.; Menzel, A.; Kretzschmar, N.; Gökce, B.; Barcikowski, S.; Plech, A.
2020. ESRF Highlights 2019. Ed.: A. Joly, 70–71, ESRF - European Synchrotron Radiation Facility
In situ speciation and spatial mapping of Zn products during pulsed laser ablation in liquids (PLAL) by combined synchrotron methods
Reich, S.; Goettlicher, J.; Ziefuß, A.; Streubel, R.; Letzel, A.; Menzel, A.; Mathon, O.; Pascarelli, S.; Baumbach, T.; Zuber, M.; Gökce, B.; Barcikowski, S.; Plech, A.
2020. Nanoscale, 12 (26), 14011–14020. doi:10.1039/D0NR01500H
In situ structural kinetics of picosecond laser-induced heating and fragmentation of colloidal gold spheres
Ziefuß, A.; Reich, S.; Reichenberger, S.; Levantino, M.; Plech, A.
2020. Physical chemistry, chemical physics, 22, 4993–5001. doi:10.1039/C9CP05202J
2019
Materials synthesis in a bubble
Barcikowski, S.; Plech, A.; Suslick, K. S.; Vogel, A.
2019. MRS bulletin, 44 (05), 382–391. doi:10.1557/mrs.2019.107
2D lens array for multi-contrast X-ray imaging
Mikhaylov, A.; Reich, S.; Plech, A.; Zakharova, M.; Vlnieska, V.; Kunka, D.
2019. EUV and X-ray Optics: Synergy between Laboratory and Space VI. Ed.: R. Hudec, Artice no: 1103208, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2520687
Inverted Hartmann mask for single-shot phase-contrast x-ray imaging of dynamic processes
Zakharova, M.; Reich, S.; Mikhaylov, A.; Vlnieska, V.; Santos Rolo, T. D.; Plech, A.; Kunka, D.
2019. Optics letters, 44 (9), 2306–2309. doi:10.1364/OL.44.002306
Femtosecond pulse induced nanostructures in ULE™ glass
Zimmermann, F.; Plech, A.; Richter, S.; Schmitt, A.; Tünnermann, A.; Nolte, S.
2019. 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015; International Congress Centre (ICM)Munich; Germany; 21 June 2015 through 25 June 2015, The Optical Society
Early appearance of crystalline nanoparticles in pulsed laser ablation in liquids dynamics
Reich, S.; Letzel, A.; Menzel, A.; Kretzschmar, N.; Gökce, B.; Barcikowski, S.; Plech, A.
2019. Nanoscale. doi:10.1039/C9NR01203F
Incubation effect of pre-irradiation on bubble formation and ablation in laser ablation in liquids
Reich, S.; Letzel, A.; Gökce, B.; Menzel, A.; Barcikowski, S.; Plech, A.
2019. ChemPhysChem, 20 (8), 1036–1043. doi:10.1002/cphc.201900075
Structural and Thermal Characterisation of Nanofilms by Time-Resolved X-ray Scattering
Plech, A.; Krause, B.; Baumbach, T.; Zakharova, M.; Eon, S.; Girmen, C.; Buth, G.; Bracht, H.
2019. Nanomaterials, 9 (4), Article: 501. doi:10.3390/nano9040501
Gold Nanorods as ultrafast photo-thermal transducers
Plech, A.; Ibrahimkutty, S.; Reich, S.; Newby, G.
2019. ESRF Highlights 2018, European Synchrotron Radiation Facility. Ed.: A. Joly, 63–64, ESRF - European Synchrotron Radiation Facility
Time and mechanism of nanoparticle functionalization by macromolecular ligands during pulsed laser ablation in liquids
Letzel, A.; Reich, S.; Santos Rolo, T. dos; Kanitz, A.; Hoppius, J.; Rack, A.; Olbinado, M.; Ostendorf, A.; Gökce, B.; Plech, A.; Barcikowski, S.
2019. Langmuir, 35 (8), 3038–3047. doi:10.1021/acs.langmuir.8b01585
2018
How the re-irradiation of a single ablation spot affects cavitation bubble dynamics and nanoparticles properties in laser ablation in liquids
Letzel, A.; Santoro, M.; Frohleiks, J.; Ziefuß, A. R.; Reich, S.; Plech, A.; Fazio, E.; Neri, F.; Barcikowski, S.; Gökce, B.
2018. Applied surface science, 473, 828–837. doi:10.1016/j.apsusc.2018.12.025
A Shack-Hartmann Sensor for Single-Shot Multi-Contrast Imaging with Hard X-rays
Santos Rolo, T. dos; Reich, S.; Karpov, D.; Gasilov, S.; Kunka, D.; Fohtung, E.; Baumbach, T.; Plech, A.
2018. Applied Sciences, 8 (5), Art.Nr. 737. doi:10.3390/app8050737
Scalable, large area compound array refractive lens for hard X-rays
Reich, S.; Santos Rolo, T. dos; Letzel, A.; Baumbach, T.; Plech, A.
2018. Applied physics letters, 112 (15), 151903. doi:10.1063/1.5022748
Nanoscale cavitation study in a Laval nozzle by SAXS
Rinke, G.; Plech, A.; Schaber, K.; Urban, A.; Ewinger, A.
2018. SNI 2018 - German Conference for Research with Synchrotron Radiation, Neutrons and Ion Beams at Large Facilities, Garching, 17.-19. September 2018
X‑ray spectroscopic and stroboscopic analysis of pulsed‑laser ablation of Zn and its oxidation
Reich, S.; Göttlicher, J.; Letzel, A.; Gökce, B.; Barcikowski, S.; Santos Rolo, T. dos; Baumbach, T.; Plech, A.
2018. Applied physics / A, 124 (1), 71. doi:10.1007/s00339-017-1503-3
2017
Thermal dynamics of pulsed-laser excited gold nanorods in suspension
Plech, A.; Ibrahimkutty, S.; Reich, S.; Newby, G.
2017. Nanoscale, 9 (44), 17284–17292. doi:10.1039/c7nr06125k
Fluence Threshold Behaviour on Ablation and Bubble Formation in Pulsed Laser Ablation in Liquids
Reich, S.; Schönfeld, P.; Letzel, A.; Kohsakowski, S.; Olbinado, M.; Gökce, B.; Barcikowski, S.; Plech, A.
2017. ChemPhysChem, 18 (9), 1084–1090. doi:10.1002/cphc.201601198
Size Quenching during Laser Synthesis of Colloids Happens Already in the Vapor Phase of the Cavitation Bubble
Letzel, A.; Gökce, B.; Wagener, P.; Ibrahimkutty, S.; Menzel, A.; Plech, A.; Barcikowski, S.
2017. The journal of physical chemistry <Washington, DC> / C, 121 (9), 5356–5365. doi:10.1021/acs.jpcc.6b12554
Pulsed laser ablation in liquids: Impact of the bubble dynamics on particle formation
Reich, S.; Schönfeld, P.; Wagener, P.; Letzel, A.; Ibrahimkutty, S.; Gökce, B.; Barcikowski, S.; Menzel, A.; Santos Rolo, T. dos; Plech, A.
2017. Journal of colloid and interface science, 489, 106–113. doi:10.1016/j.jcis.2016.08.030
2016
Femtosecond laser written nanostructures in Ge-doped glasses
Zimmermann, F.; Lancry, M.; Plech, A.; Richter, S.; Babu, B. H.; Poumellec, B.; Tünnermann, A.; Nolte, S.
2016. Optics letters, 41 (6), 1161–1164. doi:10.1364/OL.41.001161
The onset of ultrashort pulse-induced nanogratings
Zimmermann, F.; Plech, A.; Richter, S.; Tünnermann, A.; Nolte, S.
2016. Laser & photonics reviews, 10 (2), 327–334. doi:10.1002/lpor.201500272
Target geometry and rigidity determines laser-induced cavitation bubble transport and nanoparticle productivity-a high-speed videography study
Kohsakowski, S.; Gökce, B.; Tanabe, R.; Wagener, P.; Plech, A.; Ito, Y.; Barcikowski, S.
2016. Physical chemistry, chemical physics, 18 (24), 16585–16593. doi:10.1039/c6cp01232a
Ultrashort Pulse Laser Processing of Silica at High Repetition Rates-from Network Change to Residual Strain
Zimmermann, F.; Lancry, M.; Plech, A.; Richter, S.; Ullsperger, T.; Poumellec, B.; Tünnermann, A.; Nolte, S.
2016. International journal of applied glass science. doi:10.1111/ijag.12221
Measurement and analysis of thermal conductivity of isotopically controlled silicon layers by time-resolved X-ray scattering
Eon, S.; Frieling, R.; Plech, A.; Bracht, H.
2016. Physica status solidi / A, 213 (11), 3020–3028. doi:10.1002/pssa.201532607
Thermal Stability Studies of DySi2 Nanowires and Nanoislands by in Situ GISAXS
Seiler, A.; Ibrahimkutty, S.; Wochner, P.; Pradip, R.; Waller, O.; Krause, B.; Plech, A.; Baumbach, T.; Fiederle, M.; Stankov, S.
2016. The journal of physical chemistry <Washington, DC> / C, 120 (13), 7365–7372. doi:10.1021/acs.jpcc.5b12583
Ultrafast study of phonon transport in isotopically controlled semiconductor nanostructures
Issenmann, D.; Eon, S.; Bracht, H.; Hettich, M.; Dekorsy, T.; Buth, G.; Steininger, R.; Baumbach, T.; Lundsgaard Hansen, J.; Nylandsted Larsen, A.; Ager, J. W., III; Haller, E. E.; Plech, A.
2016. Physica status solidi / A, 213 (3), 541–548. doi:10.1002/pssa.201532462
2015
Femtosecond pulse induced nanostructures in ULETM glass
Zimmermann, F.; Plech, A.; Richter, S.; Schmitt, A.; Tünnermann, A.; Nolte, S.
2015. CLEO 2015 : European Conference on Lasers and Electro-Optics, Munich, Germany, 21st - 25th June 2015, Art. Nr.: CM_6_2, Optica Publishing Group (OSA)
Erasure and formation of femtosecond laser-induced nanostructures
Zimmermann, F.; Plech, A.; Richter, S.; Tünnermann, A.; Nolte, S.
2015. SPIE Photonics West, San Francisco, Calif., February 7-12, 2015
Erasure and formation of femtosecond laser-induced nanostructures
Zimmermann, F.; Plech, A.; Richter, S.; Tünnermann, A.; Nolte, S.
2015. Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XV, San Francisco, Calif., February 8-10, 2015. Ed.: A. Heisterkamp, Article no 935512, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2078818
On the rewriting of ultrashort pulse-induced nanogratings
Zimmermann, F.; Plech, A.; Richter, S.; Tunnermann, A.; Nolte, S.
2015. Optics letters, 40, 2049–2052. doi:10.1364/OL.40.002049
A hierarchical view on material formation during pulsed-laser synthesis of nanoparticles in liquid
Ibrahimkutty, S.; Wagener, P.; Rolo, T. D. S.; Karpov, D.; Menzel, A.; Baumbach, T.; Barcikowski, S.; Plech, A.
2015. Scientific Reports, 5, 16313. doi:10.1038/srep16313
A portable ultrahigh-vacuum system for advanced synchrotron radiation studies of thin films and nanostructures: EuSi₂ nano-islands
Ibrahimkutty, S.; Seiler, A.; Prüßmann, T.; Vitova, T.; Pradip, R.; Bauder, O.; Wochner, P.; Plech, A.; Baumbach, T.; Stankov, S.
2015. Journal of synchrotron radiation, 22 (1), 91–98. doi:10.1107/S1600577514019705
2014
Thermal conductivity of isotopically controlled silicon nanostructures
Bracht, H.; Eon, S.; Frieling, R.; Plech, A.; Issenmann, D.; Wolf, D.; Lundsgaard Hansen, J.; Nylandsted Larsen, A.; Ager Iii, J. W.; Haller, E. E.
2014. New Journal of Physics, 16, 015021/1–18. doi:10.1088/1367-2630/16/1/015021
Formation and Evolution of ultrashort pulse-induced nanogratings in Borosilicate glass
Zimmermann, F.; Plech, A.; Richter, S.; Tünnermann, A.; Nolte, S.
2014. Nanophotonics V : Proceedings of Photonics Europe 2014, Bruxelles, B, April 13-17, 2014. Ed.: D.L. Andrews. Paper 91260N, Article no 912636, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2052389
Ultrashort laser pulse induced nanogratings in borosilicate glass
Zimmermann, F.; Plech, A.; Richter, S.; Tünnermann, A.; Nolte, S.
2014. Applied physics letters, 104, 211107/1–6. doi:10.1063/1.4880658
Morphological evolution of nanopores and cracks as fundamental components of ultrashort pulse laser-induced nanogratings
Zimmermann, F.; Plech, A.; Richter, S.; Tünnermann, A.; Nolte, S.
2014. Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XIV, San Francisco, CA, February, 2-5 2014, Article no 89720Y, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2042135
Structural evolution of nanopores and cracks as fundamental constituents of ultrashort pulse-induced nanogratings
Zimmermann, F.; Plech, A.; Richter, S.; Döring, S.; Tünnermann, A.; Nolte, A.
2014. Applied physics / A, 114, 75–79. doi:10.1007/s00339-013-8093-5
2013
FLUTE: A versatile linac-based THz source
Nasse, M. J.; Schuh, M.; Naknaimueang, S.; Schwarz, M.; Plech, A.; Mathis, Y.-L.; Rossmanith, R.; Wesolowski, P.; Huttel, E.; Schmelling, M.; Müller, A.-S.
2013. Review of Scientific Instruments, 84 (2), 022705/1–4. doi:10.1063/1.4790431
Dynamics of silver nanoparticle formation and agglomeration inside the cavitation bubble after pulsed laser ablation in liquid
Wagener, P.; Ibrahimkutty, S.; Menzel, A.; Plech, A.; Barcikowski, S.
2013. Physical Chemistry Chemical Physics, 15, 3068–3074. doi:10.1039/C2CP42592K
Ultrafast X-ray scattering on nanoparticle dynamics
Plech, A.; Ibrahimkutty, S.; Issenmann, D.; Kotaidis, V.; Siems, A.
2013. Journal of Physics: Conference Series, 425, 092008. doi:10.1088/1742-6596/425/9/092008
Electro-optical bunch length measurements at the ANKA storage ring
Hiller, N.; Borysenko, A.; Hertle, E.; Huttel, E.; Judin, V.; Kehrer, B.; Marsching, S.; Müller, A. S.; Nasse, M. J.; Plech, A.; Schuh, M.; Smale, N. J.; Steffen, B.; Peier, P.; Schlott, V.
2013. 4th International Particle Accelerator Conference (IPAC 2013), Shanghai, China, May 12-17, 2013
Electro-optical bunch length measurements at the ANKA storage ring
Hiller, N.; Borysenko, A.; Hertle, E.; Huttel, E.; Judin, V.; Kehrer, B.; Marsching, S.; Müller, A. S.; Nasse, M. J.; Plech, A.; Schuh, M.; Smale, N. J.; Steffen, B.; Peier, P.; Schlott, V.
2013. Proceedings of the 4th International Particle Accelerator Conference (IPAC 2013), Paper MOPME014 JACoW, 2013, 500–502
Ultrafast laser pump X-ray probe experiments by means of asynchronous sampling
Issenmann, D.; Ibrahimkutty, S.; Steininger, R.; Göttlicher, J.; Baumbach, T.; Hiller, N.; Müller, A. S.; Plech, A.
2013. Journal of Physics: Conference Series, 425, 092007/1–5. doi:10.1088/1742-6596/425/9/092007
Determination of nanoscale heat conductivity by time-resolved X-ray scattering
Issenmann, D.; Wehmeier, N.; Eon, S.; Bracht, H.; Buth, G.; Ibrahimkutty, S.; Plech, A.
2013. Thin solid films, 541, 28–31. doi:10.1016/j.tsf.2012.10.132