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Leader in Integrated ICT Hardware & Systems

Epitaxy and Physics of Nanostructures Publications

The Epitaxy and Physics of Nanostructures laboratory investigates the epitaxial growth mechanism and the physics of a variety of semiconductor structures. In particular, we undertake fundamental studies of the growth mechanism and the optical properties of site controlled quantum dots (QDs) obtained by growing in pre-patterned GaAs substrates. Our field of interest spans as far as optoelectronic and electronic devices, with special attention to light emitting sources at telecom wavelengths.

Recent publications




41.                    G. Juska, V. Dimastrodonato, L. O. Mereni, T. H. Chung, A. Gocalinska and E. Pelucchi, B. Van Hattem, P. Corfdir, and M. Ediger, “Complex optical signatures from quantum dot nanostructures and behavior in inverted pyramidal recesses”, Phys. Rev. B 89, 205430 (2014).

40.                     Agnieszka Gocalinska, Marina Manganaro, Gediminas Juska, Valeria Dimastrodonato, Kevin Thomas, Bruce A. Joyce, Jing Zhang, Dimitri D. Vvedensky, and Emanuele Pelucchi, “Unusual nanostructures of “lattice matched” InP on AlInAs”, Appl. Phys. Lett. 104, 141606 (2014)..

39.                    B. Brennan, R.V. Galatage, K. Thomas, E. Pelucchi, P. K. Hurley, J. Kim, E.M. Vogel, and R.M. Wallace, “Chemical and electrical characterization of the HfO2/InAlAs interface” J. Appl. Phys. 114, 104103 (2013).

38.                    D. Dufaker, K. F. Karlsson, L. O. Mereni, V. Dimastrodonato, G. Juska, E. Pelucchi, and P.O. Holtz, “Quantum dot asymmetry and the nature of excited hole states probed by the doubly positively charged exciton X2+”, Phys. Rev. B 88, 045321 (2013).

37.                    V. Dimastrodonato, E. Pelucchi, P. A. Zestanakis, and D. D. Vvedensky, “Morphological, compositional, and geometrical transients of V-groove quantum wires formed during metalorganic vapor-phase epitaxy”, Appl. Phys. Lett. 103, 042103 (2013).

36.                    Andreas Wieczorek, Brendan Roycroft, James O‘Callaghan, Kevin Thomas, Emanuele Pelucchi, Frank H.Peters, and Brian Corbett, “Polarizers in an Asymmetric Twin Waveguide Based on Resonant Coupling”, IEEE Photon. Technol. Lett. 25, 1301 (2013).

35.                    Gediminas Juska, Valeria Dimastrodonato, Lorenzo O. Mereni, Agnieszka Gocalinska and Emanuele Pelucchi “Towards quantum dot based arrays of entangled photon emitters”, Nature Photonics 7, 527 (2013).

34.                    V. Dimastrodonato, E. Pelucchi, P. A. Zestanakis, and D. D. Vvedensky, “Transient and self-limited nanostructures on patterned surfaces”, Phys. Rev. B 87, 205422 (2013).

33.                    Greco G., Svaldo Lanero T., Torrassa S., Young R. J., Vassalli M., Cavaliere A., Rolandi, R., Pelucchi E., Faimali M., Davenport J. “Micro-topography of the eye surface of the crab Carcinus maenas: an atomic force microscope study suggesting a possible antifouling potential”, J. R. Soc. Interface   10,  20130122 (2013).

32.                    D. Dufaker, K. F. Karlsson, L. O. Mereni, V. Dimastrodonato, G. Juska, E. Pelucchi, and P.O. Holtz ”Evidence of non-adiabatic exciton-phonon interaction probed by second order LO-phonon replicas of single quantum dots” Phys. Rev. B 87, 085317 (2013).

31.                    Ian Mathews, Donagh O’Mahony, Agnieszka Gocalinska, MarinaManganaro, Emanuele  Pelucchi, Michael Schmidt, Alan P. Morrison, and Brian Corbett “InAlAs solar cell on a GaAs substrate employing a graded InxGa1-xAs – InP Metamorphic Buffer Layer” Appl. Phys. Lett.  102, 033906 (2013).

30.                    K.-H. Lee, K. Thomas, A. Gocalinska, M. Manganaro, E. Pelucchi, F. H. Peters, and B. Corbett, “SiNx-induced intermixing in AlInGaAs/InP quantum well through interdiffusion of group III atoms”, J. Appl. Phys. 112, 093109 (2012)

29.                    Chris L.M. Daunt, Ciaran S. Cleary, Robert J. Manning, Kevin Thomas, Robert J. Young, Emanuele Pelucchi, Brian Corbett, and Frank H. Peters, “Sub 10 ps carrier response times in electroabsorption modulators using quantum well offsetting”, IEEE J. Quantum Electron. 48, 1467 (2012).

28.                    A. Gocalinska, M Manganaro, E. Pelucchi and D.D. Vvedensky, “Surface organization of homoepitaxial InP films grown by metalorganic vapor-phase epitaxy” Phys. Rev. B 86, 165307 (2012)

27.                    V. Dimastrodonato, E. Pelucchi, and D. D. Vvedensky, “Self-limiting profile evolution of seeded two- and three- dimensional nanostructures during metalorganic vapor-phase epitaxy”, Phys. Rev. Lett. 96, 130501 (2012).

26.                    Vladimir Djara, Karim Cherkaoui, Kevin Thomas, V. Dimastrodonato, L.O. Mereni, Emanuele Pelucchi, Dan O’Connell, Liam Floyd and Paul K. Hurley, “On the activation of implanted silicon ions in p-In0.53Ga0.47As”, Semicond. Sci. Technol. 27, 082001 (2012).

25.                    Chris L.M. Daunt, Hua Yang, Wei Han, Kevin Thomas, Emanuele Pelucchi, Brian Corbett, and Frank H. Peters, “Dielectric free fabrication of compact 30 GHz photodetectors using the isolated pedestal contact configuration.” IEEE Photon. Technol. Lett.24, 1082 (2012).

24.                    L. O. Mereni, O. Marquardt, G. Juska, V. Dimastrodonato, E.P. O’Reilly, E. Pelucchi, “Fine Structure Splitting in large pitch Pyramidal Quantum Dots”, Phys. Rev. B 85, 155453 (2012)

23.                    E. Pelucchi, V. Dimastrodonato, L.O. Mereni, G. Juska and A. Gocalinska, “Semiconductor nanostructures engineering: Pyramidal Quantum Dots”, Curr. Opin. Solid State Mater. Sci. 16, 45 (2012).

22.                    A. Gocalinska, M Manganaro, and E. Pelucchi” Suppression of threading defects formation during Sb-assisted metamorphic buffer growth in InAs/InGaAs/InP structure” Appl. Phys. Lett. 100, 152112  (2012)

21.                    P.O. Holtz, C. WHsu, L.A. Larsson, K.F. Karlsson, D. Dufaker, A. Lundskog, U. Forsberg, E. Janzen, E.S. Moskalenko, V. Dimastrodonato, L. Mereni, E. Pelucchi, “Optical  characterization of individual quantum dots” Physica B 407, 1472 (2012)

20.                    Chris L.M. Daunt, James O’Callaghan, Kohsin Lee, Hua Yang, Robert J. Young, Kevin Thomas, Emanuele Pelucchi, Brian Corbett, and Frank H. Peters, “Compact electro-absorption modulators for photonic integrated circuits, using an isolated pedestal contact scheme”, IEEE Photon. Technol. Lett. 24, 356 (2012).

19.                    G. Juska, V. Dimastrodonato, L. O. Mereni, A. Gocalinska and E. Pelucchi, “A study of nitrogen incorporation in pyramidal site-controlled quantum dots”, Nanoscale Research Letters 6, 567 (2011).

18.                    M. A. Dupertuis K. F. Karlsson, D. Y. Oberli, E. Pelucchi, A. Rudra, P.O. Holtz, and E. Kapon, “Symmetries and the optical spectrum of exciton complexes in quantum dots”, Phys. Rev. Lett. 107, 127403 (2011).

17.                    A. Gocalinska, K. Gradkowski, V. Dimastrodonato, L. O. Mereni, G. Juska, G. Huyet, and E. Pelucchi, “Wettability and "petal effect" of GaAs native oxides”, J. Appl. Phys.110, 034319 (2011).

16.                    D. Dufåker, L. O. Mereni, K. F. Karlsson, V. Dimastrodonato , G. Juska, P. O. Holtz and E. Pelucchi, “Exciton -phonon coupling in single quantum dots with different barriers” Appl. Phys. Lett. 98, 251911 (2011).

15.                    A. M. Sonnet, R. V. Galatage, P. K. Hurley, E. Pelucchi, K. Thomas, A. Gocalinska, J. Huang, N. Goel, G. Bersuker, W. P. Kirk, C. L. Hinkle, and E. M. Vogel, “Remote phonon and surface roughness limited universal electron mobility of In0.53Ga0.47As surface channel MOSFETs” Microelectron. Eng. 88, 1083 (2011).

14.                    E. Pelucchi, V. Dimastrodonato, A. Rudra, K. Leifer, E. Kapon, L. Bethke, P. Zestanakis, and D. Vvedensky "Decomposition, diffusion, and growth rate anisotropies in self-limited profiles during metalorganic vapor-phase epitaxy of seeded nanostructures",  Phys. Rev. B 83, 205409 (2011).

13.                    A. M. Sonnet, R. V. Galatage, P. K. Hurley, E. Pelucchi, K. K. Thomas, A. Gocalinska, J. Huang, N. Goel, G. Bersuker, W. P. Kirk, C. L. Hinkle, R. M. Wallace, and E. M. Vogel, “On the calculation of effective electric field in In0.53Ga0.47As surface channel MOSFETs with HfO2 gate dielectric”, Appl. Phys. Lett. 98, 193501 (2011).

12.                    L.O. Mereni, V. Dimastrodonato, G. Juska, and E. Pelucchi, “Physical properties of highly uniform InGaAs Pyramidal Quantum Dots with GaAs barriers: fine structure splitting in pre-patterned substrates”, Superlattices and Microstructures 49, 279 (2011).

11.                    V. Dimastrodonato, L.O. Mereni, R. J. Young and E. Pelucchi, “Relevance of the purity level in a MetalOrganic Vapour Phase Epitaxy reactor environment for the growth of high quality pyramidal site-controlled Quantum Dots”, J. Cryst. Growth 315, 119 (2011).

10.                    D. Dufåker, K. F. Karlsson, V. Dimastrodonato, L.O. Mereni, P. O. Holtz, B. E. Sernelius, and E. Pelucchi, “Phonon Coupling to Exciton Complexes in Single InGaAs/AlGaAs Quantum Dots” Phys. Rev. B 82, 205421 (2010).

09.                    Kamil Gradkowski, Thomas Sadler, Lorenzo Osondu Mereni, Valeria Dimastrodonato, Peter Parbrook, Guillame Huyet and Emanuele Pelucchi, “Crystal Defect Topography of Stransky-Krastanow Dot growths by Atomic Force Microscopy”  Appl. Phys. Lett. 97, 191106 (2010).

08.                    S.B. Healy, R.J. Young, L.O. Mereni, V. Dimastrodonato, E. Pelucchi, E.P. O’Reilly, “Physics of novel site controlled InGaAs quantum dots on (111) oriented substrates”, Physica E 42, 2761 (2010).

07.                    V. Dimastrodonato, L.O. Mereni, R. J. Young and E. Pelucchi, “AlGaAs/GaAs/AlGaAs quantum wells as a sensitive tool for the MOVPE reactor environment”, J. Cryst. Growth 312, 3057 (2010).

06.                    V. Dimastrodonato, L.O. Mereni, G. Juska, and E. Pelucchi, “Impact of Nitrogen incorporation on the excitonic properties of site-controlled, pseudomorphic InGaAsN QDs grown by MetalOrganic Vapour Phase Epitaxy”, Appl. Phys. Lett 97, 072115 (2010).

05.                    V. Dimastrodonato, L. O. Mereni, R. J. Young and E. Pelucchi ”Growth and structural characterization of pyramidal site-controlled quantum dots with high uniformity and spectral purity”, Phys. Status Solidi B 247, 1862  (2010).

04.                    R. J. Young, L. O. Mereni, N. Petkov, G. R. Knight, V. Dimastrodonato, P.K. Hurley, G. Hughes  and E. Pelucchi, “Low-angle misorientation dependence of the optical properties of InGaAs/AlInAs quantum wells”, J. Cryst. Growth 312, 1546 (2010).

03.                    L.O. Mereni, V. Dimastrodonato, R.J. Young and E. Pelucchi, ”Pyramidal quantum dots: high uniformity and narrow excitonic emission”, Superlattices and Microstructures 47, 78 (2010).

02.                    L.O. Mereni, V. Dimastrodonato, R.J. Young and E. Pelucchi, “A site-controlled quantum dot system offering both high uniformity and spectral purity” Appl. Phys. Lett. 94, 223121 (2009).

01.                    E. Pelucchi, S. Watanabe, K. Leifer, B. Dwir, Q. Zhu, P. De Los Rios and E. Kapon, "Mechanisms of Quantum Dot Energy Engineering by Metalorganic Vapour Phase Epitaxy on Patterned Nonplanar Substrates", NanoLetters 7, 1282 (2007).