Nanocrystals for mid-IR photonics - W. Heiss


C. Gollner, J. Ziegler, L. Protesescu, D. N. Dirin, R. T. Lechner, G. Fritz-Popovski, M. Sytnyk, S. Yakunin, S. Rotter, A. A. Yousefi Amin, C. Vidal, C. Hrelescu, T. A. Klar, M. V. Kovalenko, and W. Heiss, "Random Lasing with Systematic Threshold Behavior in Films of CdSe/CdS Core/Thick-Shell Colloidal Quantum Dots", ACS Nano (tbd), DOI: 10.1021/acsnano.5b02739 with P14


S. Yakunin, L. Protesescu, F. Krieg, M.I. Bodnarchuk, G. Nedelcu, M. Humer, G. De Luca, M. Fiebig, W. Heiss, M.V. Kovalenko, "Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites", Nat. Commun. 6:8056 (2015), DOI:10.1038/ncomms9056

M. I. Nugraha, R. Häusermann, S. Z. Bisri, H. Matsui, M. Sytnyk, W. Heiss, J. Takeya, M. A. Loi, "High Mobility and Low Density of Trap States in Dual Solid-Gated PbS Nanocrystal Field-Effect Transistors", Advanced Materials, Vol. 27/12 (2015), 2107-2112, DOI: 10.1002/adma.201404495

S. Yakunin, M. Sytnyk, D. Kriegner, S. Shrestha, M. Richter, G. J. Matt, H. Azimi, C. J. Brabec, J. Stangl, M. V. Kovalenko, W. Heiss, "Detection of X-ray photons by solution-processed lead halide perovskites", Nature Photonics (online May 26th, 2015), DOI: 10.1038/NPHOTON.2015.82 with P07


P. Stadler, S. A. Mohamed, J. Gasiorowski, M. Sytnyk, S. Yakunin, M. C. Scharber, C. Enengl, S. Enengl, D. A. M. Egbe, M. K. El-Mansy, S. S. A. Obayya, N. S. Sariciftci, K. Hingerl, W. Heiss, "Iodide-Capped PbS Quantum Dots: Full Optical Characterization of a Versatile Absorber", Advanced Materials (2015); DOI: 10.1002/adma.201404921


M. V. Kovalenko, L. Manna, A. Cabot, Z. Hens, D. V. Talapin, C. R. Kagan, V. I. Klimov, A. L. Rogach, P. Reiss, D. J. Milliron, P. Guyot-Sionnnest, G. Konstantatos, W. J. Parak, T. Hyeon, B. A. Korgel, C. B. Murray, and W. Heiss, "Prospects of nanoscience with nanocrystals", ACS Nano (2015); DOI: 10.1021/nn506223h


M. Sytnyk, E. D. Głowacki, S. Yakunin, G. Voss, W. Schöfberger, D. Kriegner, J. Stangl, R. Trotta, C. Gollner, S. Tollabimazraehno, G. Romanazzi, Z. Bozkurt, M. Havlicek, N. S. Sariciftci, W. Heiss, "Hydrogen-bonded organic semiconductor micro- and nanocrystals: From colloidal syntheses to (opto-)electronic devices.", JACS 136, 16522−16532 (2014); DOI: 10.1021/ja5073965 with P07


R. T. Lechner, G. Fritz-Popovski, M. Yarema, W. Heiss, A. Hoell, T. U. Schulli, D. Primetzhofer, M. Eibelhuber, O. Paris, "Crystal Phase Transitions in the Shell of PbS/CdS Core/Shell Nanocrystals Influences Photoluminescence Intensity", Chemistry of Materials 26, 5914 (2014); DOI: 10.1021/cm502521q


O. Q. Balitskii, M. Sytnyk, J. Stangl, D. Primetzhofer, H. Groiss, W. Heiss, "Tuning the Localized Surface Plasmon Resonance in Cu2-xSe Nanocrystals by Postsynthetic Ligand Exchange", ACS Applied Materials and Interfaces 6, 17770-17775, (2014); DOI: 10.1021/am504296y


S. Yakunin, D. N. Dirin, L. Protesescu, M. Sytnyk, S. Tollabimazraehno, M. Humer, F. Hackl, T. Fromherz, M. I. Bodnarchuk, M. V. Kovalenko, W. Heiss, "High Infrared Photoconductivity in Films of Arsenic-Sulfide-Encapsulated Lead-Sulfide Nanocrystals". ACS Nano 8, 12883 (2014); DOI: 10.1021/nn5067478


Balazs D. M., M. I. Nugraha, S. Z. Bisri, M. Sytnyk, W. Heiss, and M. A. Loi, "Reducing charge trapping in PbS colloidal quantum dot solids". Appl. Phys. Lett. 104, 112104 (2014); DOI: 10.1063/1.4869216


O. Yarema, D. Bozyigit, I. Rousseau, L. Nowack, M. Yarema, W. Heiss, V.Wood, "Highly luminescent, size-and shape-tunable copper indium selenide based colloidal nanocrystals". Chem. Mater. 25, 3753-3757 (2013), DOI: 10.1021/cm402306q


G. Itskos, P. Papagiorgis, D. Tsokkou, A. Othonos, F. Hermerschmidt, S. P. Economopoulos, M. Yarema, W. Heiss, S. Choulis, "Size-dependent charge transfer in blends of PbS quantum dots with a low-gap silicon-bridged copolymer", Adv. Energy Mater. 3, 1490-1499 (2013), DOI: 10.1002/aenm.201300317


D. Tsokkou, G. Itskos, S. Choulis, M. Yarema, W. Heiss, A. Othonos, "Concentration and excitation effects on the exciton dynamics of poly(3-hexylthiophene)/PbS quantum dot blend films". Nanotechnology 14, 235707 (2013) DOI: 10.1088/0957-4484/24/23/235707


M. Sytnyk, R. Kirchschlager, M. I. Bodnarchuk, D. Primetzhofer, D. Kriegner, H. Enser, J. Stangl, P. Bauer, M. Voith, A. W. Hassel, F. Krumeich, F. Ludwig, A. Meingast, G. Kothleitner, M.V. Kovalenko and W. Heiss, "Tuning the Magnetic Properties of Metal Oxide Nanocrystal Heterostructures by Cation Exchange", Nano Lett., 2013, 13 (2), pp 586–593, DOI: 10.1021/nl304115r


C. Piliego, M. Manca, R. Kroon, M. Yarema, K. Szendrei, M. R. Andersson, W. Heiss, M. A. Loi, "Charge separation dynamics in a narrow band gap polymer-PbS nanocrystal blend for efficient hybrid solar cells", J. of Materials Chemistry 22, 24411-24416 (2012) DOI: 10.1039/c2jm34034h

K. Szendrei , M. Speirs, W. Gomulya, D. Jarzab, M. Manca, O. V. Mikhnenko, M. Yarema, B. J. Kooi, W. Heiss, M. A. Loi, "Exploring the origin of the temperature-dependent behavior of PbS nanocrystal thin films and solar cells", Advanced Functional Materials 22/8, 1598–1605 (2012) DOI: 10.1002/adfm.201102320


M. Yarema, S. Pichler, D. Kriegner, J. Stangl, O. Yarema, R. Kirchschlager, S. Tollabimazraehno, M. Humer, D. Häringer, M. Kohl, G. Chen, and W. Heiss, "From highly monodisperse indium and indium tin colloidal nanocrystals to self-assembled indium tin oxide nanoelectrodes", ACS Nano, 6,4113 (2012) DOI: 10.1021/nn3005558


G. Itskos, A. Othonos, T. Rauch, S. F. Tedde, O. Hayden, M. V. Kovalenko, W. Heiss, S. A. Choulis, "Optical properties of organic semiconductor blends with near-infrared quantum-dot sensitizers for light harvesting applications", Advanced Energy Materials 1/5, 802-812 (2011) DOI: 10.1002/aenm.201100182

M. Madl, W. Brezna, B. Basnar, M. Yarema, W. Heiss and J. Smoliner, "Variable wavelength photocurrent mapping on PbS quantum dot: fullerene thin films by conductive atomic force microscopy", Semicond. Sci. Technol. 26, 095002 (2011) DOI: 10.1088/0268-1242/26/9/095002

M. Eibelhuber, T. Schwarzl, S. Pichler, W. Heiss, G. Springholz, “Growth and characterization of mid-infrared microdisk lasers operating in cw mode up to 2 °C“, Journal of Crystal Growth 323, 460 (2011) DOI: 10.1016/j.jcrysgro.2010.10.110



M. Yarema, S Pichler, M. Sytnyk, R. Seyrkammer, R. Lechner, G. Fritz-Popovski, D. Jarzab, K. Szendrei, R. Resel, O. Korovyanko, M. A. Loi, O. Paris, G. Hesser, W. Heiss, "Infrared Emitting and Photoconducting Colloidal Silver Chalcogenide Nanocrystal Quantum Dots from a Silylamide Promoted Synthesis", ACS Nano 5/5, 3758-3765 (2011) DOI: 10.1021/nn2001118


D. Jarzab, K. Szendrei, M. Yarema, S. Pichler, W. Heiss, M. A. Loi, "Charge-Separation Dynamics in Inorganic–Organic Ternary Blends for Efficient Infrared Photodiodes", Ad. Funct. Mat. 21/11, 1988-1992 (2011) DOI: 10.1002/adfm.201001999

I. Humer, O. Bethge, M. Bodnarchuk, M. Kovalenko, M. Yarema, W. Heiss, H. P. Huber, M. Hochleitner, P. Hinterdorfer, F. Kienberger, and J. Smoliner, "Scanning microwave microscopy and scanning capacitance microscopy on colloidal nanocrystals", J. Appl. Phys. 109, 064313 (2011) DOI: 10.1063/1.3553867


M. Madl, W. Brezna, G. Strasser, P. Klang, A. M. Andrews, M. I. Bodnarchuk, M. V. Kovalenko, M. Yarema, W. Heiss, and J. Smoliner, "AFM-based photocurrent imaging of epitaxial and colloidal QDs", Phys. Status Solidi C 8, 426-428 (2011) DOI: 10.1002/pssc.201000599


S. Pichler, T. Rauch, R. Seyrkammer, M. Böberl, S. F. Tedde, J. Fürst, M. V. Kovalenko, U. Lemmer, O. Hayden, W. Heiss, "Temperature dependent photoresponse from colloidal PbS quantum dot sensitized inorganic/organic hybrid photodiodes", Appl. Phys. Lett. 98, 053304 (2011) DOI: 10.1063/1.3552678

S. Pichler, M. I. Bodnarchuk, M. V. Kovalenko, M. Yarema, G. Springholz, D. V. Talapin, W. Heiss, "Evaluation of ordering in single-component and binary nanocrystal superstructures by analysis of their autocorrelation functions", ACS Nano 5/3, 1703 (2011) DOI: 10.1021/nn200265e


A. Hochreiner, T. Schwarzl, M. Eibelhuber, W. Heiss, G. Springholz, V. Kolkovsky, G. Karczewski, and T. Wojtowicz, "Midinfrared electroluminescence from PbTe/CdTe quantum dot light-emitting diodes",  Appl. Phys. Lett. 98, 021106 (2011) DOI: 10.1063/1.3531760


K. Szendrei, W. Gomulya, M. Yarema, W. Heiss, M. A. Loi, "PbS nanocrystal quantum dot solar cells with high efficiency and fill factor", Appl. Phys. Lett. 97, 203501 (2010) DOI: 10.1063/1.3518067

M. Yarema, M. V. Kovalenko, G. Hesser, D. Talapin, W. Heiss, "Highly monodisperse bismuth nanoparticles and their 3-dimensional superlattices", J. of the Am. Chem. Soc. 132, 15158 (2010) DOI: 10.1021/ja107458s


H. Pühringer, J. Roither, M. V. Kovalenko, M. Eibelhuber, T. Schwarzl, D. V. Talapin, and W. Heiss, "Enhanced color conversion from colloidal CdSe/CdS dot/rods by vertical microcavities", Appl. Phys. Lett. 97, 111115 (2010) DOI: 10.1063/1.3491065

K. Szendrei, D. Jarzab, M. Yarema,  M. Sytnyk, S. Pichler, J. C. Hummelen, W. Heiss, M. A. Loi, "Surface modification of semiconductor nanocrystals by a methanofullerene carboxylic acid", J. of Materials Chemistry 20, 8470 (2010) DOI: 10.1039/C0JM02347G


M. Eibelhuber, T. Schwarzl, S. Pichler, W. Heiss, G. Springholz, "Near room temperature continuous-wave laser operation from type I interband transitions at wavelengths beyond 4 µm", Appl. Phys. Lett. 97, 061103 (2010) DOI: 10.1063/1.3478834
Featured as a Nature Photonics Research Highlight "Warming up type-I lasers", Nature Photonics Vol.4, 664-665 (2010) DOI: 10.1038/nphoton.2010.227

A. Gocalińska, M. Saba, F. Quochi, M. Marceddu, K. Szendrei, J. Gao, M. A. Loi, M. Yarema, R. Seyrkammer, W. Heiss, A. Mura, and G. Bongiovanni, "Size-dependent electron transfer from colloidal PbS nanocrystals to fullerene", J. Phys. Chem. Lett., 2010, 1 (7), 1149-1154 (2010) DOI: 10.1021/jz100116t


H. Groiss, G. Hesser, W. Heiss, and F. Schäffler, R. Leitsmann, F. Bechstedt, K. Koike, M. Yano, "Coherent {001} interfaces between rocksalt and zinc-blende crystal structures", Phys. Rev. B 79, 235331 (2009) DOI: 10.1103/PhysRevB.79.235331


C. Wang, J. Roither, R. Kirschschlager, M. V. Kovalenko, M. Brehm, T. Fromherz, Q. Kan, P. Tan, J. Liu,H. Chen, and W. Heiss, "Enhanced infrared emission from colloidal HgTe nanocrystal quantum dots on silicon-on-insulator photonic crystals",  Appl. Phys. Lett. 94, 053107 (2009) DOI: 10.1063/1.3194151


E. Kaufmann, T. Schwarzl, H. Groiss, G. Hesser, F. Schäffler, L. Palmetshofer, G. Springholz, W. Heiss, "PbTe and SnTe quantum dot precipitates in a CdTe matrix fabricated by ion implantation", J. Appl. Phys. 106, 043105/1-5 (2009) DOI: 10.1063/1.3204499


T. Rauch, M. Böberl, S. F. Tedde, J. Fürst, M. V. Kovalenko, G. Hesser, U. Lemmer, W. Heiss, and O. Hayden, "Near-Infrared Imaging with Quantum Dot Sensitized Organic Photodiodes", Nature Photonics 3, 332 (2009) DOI: 10.1038/nphoton.2009.72


K. Szendrei, F. Cordella, M. V. Kovalenko, M. Böberl, G. Hesser, M. Yarema, D. Jarzab, O. V. Mikhnenko, A Gocalinska, M. Saba, F. Quochi, A. Mura, G. Bongiovanni, P. W. M. Blom, W. Heiss and M. A. Loi, "Solution-Processable Near-IR Photodetectors Based on Electron Transfer from PbS Nanocrystals to Fullerene Derivatives", Advanced Materials 21, 683 (2009) DOI: 10.1002/adma.200801752


M. Eibelhuber, T. Schwarzl, G. Springholz, and W. Heiss, "Lead salt microdisk lasers operating in continuous wave mode at 5.3 mu m wavelength", Appl. Phys. Lett. 94, 021118 (2009), DOI: 10.1063/1.3072358


C. Simbrunner, G. Hernandez-Sosa, E. Baumgartner, G. Hesser, J. Roither, W. Heiss, and H. Sitter, "Para-sexiphenyl-CdSe/ZnS nanocrystal hybrid light emitting diodes", Appl. Phys. Lett. 94, 073505 (2009), DOI: 10.1063/1.3086295


M. Eibelhuber, T. Schwarzl, A. Winter. H. Pascher, W. Heiss, G. Springholz, "Mid-infrared vertical-cavity surface-emitting lasers based on lead salt/BaF2 Bragg mirrors", Proc. of SPIE, vol. 6900, 69000E (2008) DOI: 10.1117/12.783927


H. Groiss, E. Kaufmann, G. Springholz, T. Schwarzl, G. Hesser, F. Schäffler, W. Heiss, K. Koike, T. Ikatura, T. Hotei, M. Yano, T. Wojtowicz, "Size-controlled quantum dots fabricated by precipitation of epitaxially grown, immiscible semiconductor heterosystems", J. Phys.: Condens. Matter 20, 454216 (2008) DOI: 10.1088/0953-8984/20/45/454216


T. Schwarzl, E. Kaufmann, G. Springholz, K. Koike, T. Hotei, M. Yano, and W. Heiss, "Temperature-dependent midinfrared photoluminescence of epitaxial PbTe/CdTe quantum dots and calculation of the corresponding transition energy", Phys. Rev. B 78, 165320/1-9 (2008) DOI: 10.1103/PhysRevB.78.165320




K. Szendrei, F. Cordella, M. V. Kovalenko, M. Böberl, G. Hesser, M. Yarema, D. Jarzab, O. V. Mikhnenko, A Gocalinska, M. Saba, F. Quochi, A. Mura, G. Bongiovanni, P. W. M. Blom, W. Heiss and M. A. Loi, "Solution processable near infrared photodetectors based on electron transfer from PbS nanocrystals to fullerene derivatives", Advanced Materials 21, 683-687 (2009)


J. Roither, M. V. Kovalenko, W. Heiss, "Highly efficient (infra)-red-conversion of InGaN light emitting diodes by nanocrystals, enhanced by color selective mirrors", Nanotechnology 19, 355205 (2008)


M. Böberl, M. V. Kovalenko, G. Pillwein, G. Brunthaler, W. Heiss, "Quantum dot nanocolumn photodetectors for light detection in the infrared", Appl. Phys. Lett. 92, 261113, (2008)


K. Koike, T. Itakura, T. Hotei, M. Yano, H. Groiss, H. Hesser, F. Schäffler, "Thermal precipitation of self-organized PbTe quantum dots in CdTe host matrix", Physica Status Solidi C 9, 2746 (2008)


M. V. Kovalenko, D. V. Talapin, M. A. Loi, F. Cordella, G. Hesser, M. I. Bodnarchuk, W. Heiss, "Quasi-seeded growth of ligand-tailored PbSe nanocrystals through cation-exchange mediated nucleation", Angewandte Chemie 47, 3029 (2008)


V. Rinnerbauer, H. J. Egelhaaf, K. Hingerl, P. Zimmer, S. Werner, T. Warming, A. Hoffmann, M. Kovalenko, W. Heiss, G. Hesser, F. Schäffler, "Energy transfer in close packed PbS nanocrystal films", Phys. Rev. B 77, 085322 (2008)


H. Groiss, E. Kaufmann, G. Springholz, T. Schwarzl, G. Hesser, F. Schäffler, W. Heiss, K. Koike, T. Itakura, T. Hotei, M. Yano, T. Wojtowicz, "Size control and midinfrared emission of epitaxial PbTe/CdTe quantum dot precipitates grown by molecular beam epitaxy", App. Phys. Lett. 91, 222106, (2007)


M. V. Kovalenko, W. Heiss, E. V. Shevchenko, J. S. Lee, H. Schwinghammer, A. P. Alivisatos, D. V. Talapin, "SnTe Nanocrystals: A New Example of Narrow-Gap Semiconductor Quantum Dots", J. Am. Chem. Soc. 129, 11354 (2007)


H. Groiss, W. Heiss, F. Schäffler, R. Leitsmann, F. Bechstedt, K. Koike, H. Harada, M. Yano, "The coherent {100} and {110} interfaces between rocksalt-PbTe and zincblende-CdTe", J. Cryst. Growth 301, 671 (2007)


K. Koike, H. Harada, T. Itakura, M. Yano, W. Heiss, H. Groiss, E. Kaufmann, G. Hesser, F. Schäffler, "Photoluminescence characterization of PbTe/CdTe quantum dots grown by lattice-type mismatched epitaxy", J. Cryst. Growth 301, 722 (2007)


T. Schwarzl, J. Fürst, G. Springholz, M. Böberl, E. Kaufmann, J. Roither, G. Bauer, H. Pascher, W. Heiss, "Emission properties of 6.7 micron vertical-emitting microcavity lasers operating in continuous-wave mode", AIP Conference Proceedings 893, 1135 (2007)


T. Schwarzl, M. Eibelhuber, W. Heiss, E. Kaufmann, G. Springholz, A. Winter, H. Pascher, "Mid-infrared high finesse microcavities and vertical-cavity lasers based on IV-VI semiconductor/BaF2 broad band Bragg mirrors", J. Appl. Phys. 101, 093102 (2007)


M. Böberl, M. N. Kovalenko, S. Gamerith, E. List, W. Heiss, "Inkjet-printed nanocrystal photodetectors operating up to 3 µm wavelengths", Advanced Materials 19, 3574 (2007)


W. Heiss, H. Groiss, E. Kaufmann, G. Hesser, M. Böberl, G. Springholz, F. Schäffler, R. Leitsmann, F. Bechstedt, K. Koike, H. Harada, M. Yano, "Quantum dots with coherent interfaces between rocksalt-PbTe and zincblende-CdTe", J. Appl. Phys. 101, 081723 (2007)


R. Leitsmann, F. Bechstedt, H. Groiss, F. Schäffler, W. Heiss, K. Koike, H. Harada, M. Yano, "Structural and electronic properties of PbTe (rocksalt)/CdTe (zinc-blende) interfaces", Applied Surface Science 254, 397 (2007)


R. Leitsmann, L. E. Ramos, F. Bechstedt, H. Groiss, F. Schäffler, W. Heiss, K. Koike, H. Harada, M. Yano, "Rebonding at coherent interfaces between rocksalt-PbTe/sinz-blende-CdTe", New Journal of Physics 8, 317 (2006)


W. Heiss, E. Kaufmann, M. Böberl, T. Schwarzl, G. Springholz, G. Hesser, F. Schäffler, K. Koike, H. Harada, and M. Yano, R. Leitsmann, L.E. Ramos, and F. Bechstedt, "Highly luminescent nanocrystal quantum dots fabricated by lattice-type mismatched epitaxy", Physica E 35, 241-245 (2006)


E. Baumgartner, T. Schwarzl, G. Springholz, W. Heiss, "Highly efficient epitaxial Bragg mirrors with broad omnidirectional reflectivity stop bands in the mid-infrared", Appl. Phys. Lett. 89, 051110 (2006)


J. Roither, S. Pichler, M. V. Kovalenko, W. Heiss, P. Feichuk, O. Panchuk, J. Allam, B. N. Murdin, "Two and one dimensional light propagation and gain in layer-by-layer deposited colloidal nanocrystal waveguides", Appl. Phys. Lett. 89, 111120 (2006)


W. Heiss, H. Groiss, E. Kaufmann, G. Hesser, M. Böberl, G. Springholz, F. Schäffler, K. Koike, H. Harada, and M. Yano, "Centrosymmteric PbTe/CdTe quantum dots coherently embedded by epitaxial precipitation", Appl. Phys. Lett. 88, 192109 (2006)


M. V. Kovalenko, E. Kaufmann, D. Pachinger, J. Roither, M. Huber, J. Stangl, F. Schäffler, W. Heiss, "Colloidal HgTe nanocrystals with widely tunable narrow band gap energies: From Telecommunications to molecular-vibrations", J. Am. Chem. Society 128(11), 3516 (2006)


M. Böberl, T. Fromherz, J. Roither, G. Pillwein, G. Springholz, W. Heiss, "Room temperature operation of epitaxial lead-telluride detectors monolithically integrated on mid-infrared filters", Appl. Phys. Lett. 88, 041105 (2006)


S. Günes, H. Neugebauer, N. S. Sariciftci, J. Roither, M. Kovalenko, G. Pillwein, W. Heiss, "Hybrid solar cells using HgTe nanocrystals and nanoporous TiO2 electrodes", Adv. Funct. Mat. 16, 1095-1099 (2006)


T. Schwarzl, J. Fürst, M. Böberl, E. Kaufmann, J. Roither, H. Pascher, G. Bauer, G. Springholz, W. Heiss, "Mid-infrared emission from 100% spin-polarized states in IV-VI vertical-cavity surface emitting lasers", Narrow Gap Semiconductors, eds. Kono & Léotin, Institute of Physics Conference Series Number 187, Taylor & Franics 2006, p. 329 (2006)


V. Rinnerbauer, M. V. Kovalenko, V. Lavchiev, G. Kocher, J. Roither, W. Heiss, K. Hingerl, "Spectroscopic ellipsometry of layer by layer deposited colloidal HgTe nanocrystals exhibiting quantum confinement", Physica E 32, 104 (2006)


V. Rinnerbauer, K. Hingerl, M. Kovalenko, W. Heiss, "Effect of quantum confinement on higher transitions in HgTe nanocrystals", Appl. Phys. Lett. 89, 193114 (2006)


J. Roither, M. V. Kovalenko, S. Pichler, T. Schwarzl, W. Heiss, "Nanocrystal based microcavity light emitting devices operating in the telecommunication wavelength range", Appl. Phys. Lett. 86, 241104 (2005)


T. Schwarzl, M. Böberl, G. Springholz, E. Kaufmann, J. Roither, W. Heiss, J. Fürst, H. Pascher, "Molecular beam epitaxy of vertical-cavity microcavity lasers for the 6-8 µm spectral range operating in continuous-wave mode", J. of Crystal Growth 278, 723 (2005)


T. Schwarzl, G. Springholz, M. Böberl, E. Kaufmann, J. Roither, W. Heiss, J. Fürst, H. Pascher, "Emission properties of 6.7 µm continuous-wave PbSe-based vertical-emitting microcavity lasers operating up to 100 K", Appl. Phys. Lett. 86, 031102 (2005)



Reviews and book contributions


M. V. Kovalenko and W. Heiss, "Towards Mid-Infrared Active Colloidal Nanocrystals: The State-of-the-Art and the Challenges", in: "Nanocrystals: Properties, Preparation and Applications", ed. Hongquig Hu, Nova Publishers (2009), p. 275-304




G. Springholz, T. Schwarzl, W. Heiss, "Mid-infrared Vertical Cavity Surface Emitting Lasers based on the Lead Salt Compounds", in: A. Krier: Mid-infrared Semiconductor Optoelectronics, Springer-Verlag London (2006)