Dr. Lutz Geelhaar

Stacking faults as quantum wells in nanowires: Density of states, oscillator strength and radiative efficiency

@article{ author = { P. Corfdir and C. Hauswald and J. K. Zettler and T. Flissikowski and J. Lähnemann and S. Fernández-Garrido and L. Geelhaar and H. T. Grahn and O. Brandt }, title = { Stacking faults as quantum wells in nanowires: Density of states, oscillator strength and radiative efficiency }, journal = { Physical Review B: Solid State }, volume = { 90 }, year = { 2014 }, pages = { 195309 } }

TY - JOUR AU - P. Corfdir AU - C. Hauswald AU - J. K. Zettler AU - T. Flissikowski AU - J. Lähnemann AU - S. Fernández-Garrido AU - L. Geelhaar AU - H. T. Grahn AU - O. Brandt TI - Stacking faults as quantum wells in nanowires: Density of states, oscillator strength and radiative efficiency JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 90 SP - 195309 PY - 2014/11/18

Role of liquid indium in the structural purity of wurtzite InAs nanowires that grow on Si(111)

@article{ author = { A. Biermanns and E. Dimakis and Anton Davydok and Takkuo Sasaki and L. Geelhaar and Masamitu Takahasi and U. Pietsch }, title = { Role of liquid indium in the structural purity of wurtzite InAs nanowires that grow on Si(111) }, journal = { Nano Letters }, volume = { 14 }, year = { 2014 }, pages = { 6878 } }

TY - JOUR AU - A. Biermanns AU - E. Dimakis AU - Anton Davydok AU - Takkuo Sasaki AU - L. Geelhaar AU - Masamitu Takahasi AU - U. Pietsch TI - Role of liquid indium in the structural purity of wurtzite InAs nanowires that grow on Si(111) JF - Nano Letters JA - Nano Lett. J1 - VL - 14 SP - 6878 PY - 2014/11/16

Axial InAs/GaAs heterostructures on silicon in a nanowire geometry

@article{ author = { C. Somaschini and A. Biermanns and S. Bietti and G. Bussone and A. Trampert and S. Sanguinetti and H. Riechert and U. Pietsch and L. Geelhaar }, title = { Axial InAs/GaAs heterostructures on silicon in a nanowire geometry }, journal = { Nanotechnology }, volume = { 25 }, year = { 2014 }, pages = { 485602 } }

TY - JOUR AU - C. Somaschini AU - A. Biermanns AU - S. Bietti AU - G. Bussone AU - A. Trampert AU - S. Sanguinetti AU - H. Riechert AU - U. Pietsch AU - L. Geelhaar TI - Axial InAs/GaAs heterostructures on silicon in a nanowire geometry JF - Nanotechnology JA - Nanotechnol. J1 - NAN VL - 25 SP - 485602 PY - 2014/11/13

Correlation between the structural and optical properties of spontaneously formed GaN nanowires: A quantitative evaluation of the impact of nanowire coalescence

@article{ author = { S. Fernández-Garrido and V. M. Kaganer and C. Hauswald and B. Jenichen and M. Ramsteiner and V. Consonni and L. Geelhaar and O. Brandt }, title = { Correlation between the structural and optical properties of spontaneously formed GaN nanowires: A quantitative evaluation of the impact of nanowire coalescence }, journal = { Nanotechnology }, volume = { 25 }, year = { 2014 }, pages = { 455702 } }

TY - JOUR AU - S. Fernández-Garrido AU - V. M. Kaganer AU - C. Hauswald AU - B. Jenichen AU - M. Ramsteiner AU - V. Consonni AU - L. Geelhaar AU - O. Brandt TI - Correlation between the structural and optical properties of spontaneously formed GaN nanowires: A quantitative evaluation of the impact of nanowire coalescence JF - Nanotechnology JA - Nanotechnol. J1 - NAN VL - 25 SP - 455702 PY - 2014/10/20

Origin of the nonradiative decay of bound excitons in GaN nanowires

@article{ author = { C. Hauswald and P. Corfdir and J. K. Zettler and V. M. Kaganer and K. K. Sabelfeld and S. Fernández-Garrido and T. Flissikowski and V. Consonni and T. Gotschke and H. T. Grahn and L. Geelhaar and O. Brandt }, title = { Origin of the nonradiative decay of bound excitons in GaN nanowires }, journal = { Physical Review B: Solid State }, volume = { 90 }, year = { 2014 }, pages = { 165304 } }

TY - JOUR AU - C. Hauswald AU - P. Corfdir AU - J. K. Zettler AU - V. M. Kaganer AU - K. K. Sabelfeld AU - S. Fernández-Garrido AU - T. Flissikowski AU - V. Consonni AU - T. Gotschke AU - H. T. Grahn AU - L. Geelhaar AU - O. Brandt TI - Origin of the nonradiative decay of bound excitons in GaN nanowires JF - Physical Review B: Solid State JA - Phys. Rev. B J1 - VL - 90 SP - 165304 PY - 2014/10/08

Impact of strain induced by polymer curing in benzocyclobutene embedded semiconductor nanostructures

@article{ author = { G. Bussone and E. Dimakis and R. Grifone and A. Biermanns and A. Tahraoui and D. Carbone and L. Geelhaar and T. U. Schülli and U. Pietsch }, title = { Impact of strain induced by polymer curing in benzocyclobutene embedded semiconductor nanostructures }, journal = { Physica Status Solidi Rapid Research Letters }, volume = { 8 }, year = { 2014 }, pages = { 1007 } }

TY - JOUR AU - G. Bussone AU - E. Dimakis AU - R. Grifone AU - A. Biermanns AU - A. Tahraoui AU - D. Carbone AU - L. Geelhaar AU - T. U. Schülli AU - U. Pietsch TI - Impact of strain induced by polymer curing in benzocyclobutene embedded semiconductor nanostructures JF - Physica Status Solidi Rapid Research Letters JA - Phys. Status Solidi RRL J1 - VL - 8 SP - 1007 PY - 2014/09/25

Plan-view transmission electron microscopy investigation of GaAs/(In,Ga)As core-shell nanowires

@article{ author = { J. Grandal and M. Wu and X. Kong and M. Hanke and E. Dimakis and L. Geelhaar and H. Riechert and A. Trampert }, title = { Plan-view transmission electron microscopy investigation of GaAs/(In,Ga)As core-shell nanowires }, journal = { Applied Physics Letters }, volume = { 105 }, year = { 2014 }, pages = { 121602 } }

TY - JOUR AU - J. Grandal AU - M. Wu AU - X. Kong AU - M. Hanke AU - E. Dimakis AU - L. Geelhaar AU - H. Riechert AU - A. Trampert TI - Plan-view transmission electron microscopy investigation of GaAs/(In,Ga)As core-shell nanowires JF - Applied Physics Letters JA - Appl. Phys. Lett. J1 - APL VL - 105 SP - 121602 PY - 2014/09/22

Localization and defects in axial (In,Ga)N/GaN nanowire heterostructures investigated by spatially-resolved luminescence spectroscopy

@article{ author = { J. Lähnemann and C. Hauswald and M. Wölz and U. Jahn and M. Hanke and L. Geelhaar and O. Brandt }, title = { Localization and defects in axial (In,Ga)N/GaN nanowire heterostructures investigated by spatially-resolved luminescence spectroscopy }, journal = { Journal of Physics D: Applied Physics }, volume = { 47 }, year = { 2014 }, pages = { 394010 } }

TY - JOUR AU - J. Lähnemann AU - C. Hauswald AU - M. Wölz AU - U. Jahn AU - M. Hanke AU - L. Geelhaar AU - O. Brandt TI - Localization and defects in axial (In,Ga)N/GaN nanowire heterostructures investigated by spatially-resolved luminescence spectroscopy JF - Journal of Physics D: Applied Physics JA - J. Phys. D J1 - JPD VL - 47 SP - 394010 PY - 2014/09/12

Minimizing the impact of surface potentials in axial InGaN/GaN nanowire heterostructures by reducing their diameter

@article{ author = { O. Marquardt and L. Geelhaar and O. Brandt }, title = { Minimizing the impact of surface potentials in axial InGaN/GaN nanowire heterostructures by reducing their diameter }, journal = { Journal of Physics D: Applied Physics }, volume = { 47 }, year = { 2014 }, pages = { 1 } }

TY - JOUR AU - O. Marquardt AU - L. Geelhaar AU - O. Brandt TI - Minimizing the impact of surface potentials in axial InGaN/GaN nanowire heterostructures by reducing their diameter JF - Journal of Physics D: Applied Physics JA - J. Phys. D J1 - JPD VL - 47 SP - 1 PY - 2014/09/12

Self-assisted GaAs nanowires with controllable number density on bare Silicon

@article{ author = { S. Bietti and C. Somaschini and C. Frigeri and A. Fedorov and L. Esposito and L. Geelhaar and S. Sanguinetti }, title = { Self-assisted GaAs nanowires with controllable number density on bare Silicon }, journal = { Journal of Physics D: Applied Physics }, volume = { 47 }, year = { 2014 }, pages = { 394002 } }

TY - JOUR AU - S. Bietti AU - C. Somaschini AU - C. Frigeri AU - A. Fedorov AU - L. Esposito AU - L. Geelhaar AU - S. Sanguinetti TI - Self-assisted GaAs nanowires with controllable number density on bare Silicon JF - Journal of Physics D: Applied Physics JA - J. Phys. D J1 - JPD VL - 47 SP - 394002 PY - 2014/09/11