@misc{TarnawskaZaumseilSchubertetal., author = {Tarnawska, Lidia Lupina and Zaumseil, Peter and Schubert, Markus Andreas and Okur, S. and Morkoc, H. and Paszkiewicz, R. and Storck, Peter and Schroeder, Thomas}, title = {Structural and optical quality of GaN on Sc2O3 / Y2O3 / Si(111)}, series = {Journal of Applied Physics}, volume = {111}, journal = {Journal of Applied Physics}, number = {7}, issn = {0021-8979}, doi = {10.1063/1.3699201}, pages = {073509 -- 073509-4}, language = {en} } @misc{KozłowskiFursenkoZaumseiletal., author = {Kozłowski, Grzegorz and Fursenko, Oksana and Zaumseil, Peter and Schroeder, Thomas and Vorderwestner, M. and Storck, Peter}, title = {The epitaxial growth of low defect SiGe buffer layers for integration of new materials on 300 mm silicon wafers}, series = {ECS transactions}, volume = {50}, journal = {ECS transactions}, number = {9}, issn = {1938-6737}, pages = {613 -- 621}, language = {en} } @inproceedings{SeifarthWalczykLupinaetal., author = {Seifarth, Olaf and Walczyk, Christian and Lupina, Grzegorz and Dabrowski, Jaroslaw and Weidner, G{\"u}nter and Zaumseil, Peter and Schmeißer, Dieter and Storck, Peter and M{\"u}ssig, Hans-Joachim and Schroeder, Thomas}, title = {On the electronic and dielectric characterisation of thin cubic PrO2 layers on Silicon}, series = {Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 43}, booktitle = {Verhandlungen der Deutschen Physikalischen Gesellschaft, Reihe 6, Bd. 43}, publisher = {Deutsche Physikalische Gesellschaft}, address = {Bad Honnef}, issn = {0420-0195}, pages = {S. 196}, abstract = {For the integration of 100 \% Ge onto the Si platform, a buffer oxide approach has been developed recently, using rare earth oxides to tune the lattice constant between the Si and the Ge. Among these buffer oxides, PrO2 is a prospective candidate with high quality crystalline growth on Si, moderated by an interfacial Pr-silicate between. In order to specify electronic properties of thin PrO2 and its interface on Si(111), especially the width of the band gap, we performed synchrotron radiation based XPS, UPS and XAS measurements at the U49/2 PGM 2 beamline at BESSY II and correlate the results with our structural characterisation performed by TEM and XRD. In order to evaluate the dielectric properties of thin PrO2 layers on Si(111), we performed temperature-, time-, voltage-, and layer thickness-dependent leakage current measurements (J-V). Here, we identified relaxation behaviour in the leakage current, successfully addressed to defect like states inside the Pr-silicate interface layer, corroborated by frequency dependent capacitance versus voltage (C-V) measurements.}, language = {en} } @misc{LupinaDabrowskiFormaneketal., author = {Lupina, Grzegorz and Dabrowski, Jarek Marek and Formanek, Peter and Schmeißer, Dieter and Sorge, Roland and Wenger, Christian and Zaumseil, Peter and M{\"u}ssig, Hans-Joachim}, title = {Solid-state reaction between Pr and SiO2 studied by photoelectron spectroscopy and ab initio calculations}, series = {Materials Science in Semiconductor Processing}, volume = {7}, journal = {Materials Science in Semiconductor Processing}, number = {4-6}, issn = {1369-8001}, pages = {215 -- 220}, abstract = {We report on the structural and electrical properties of Pr-based high-k dielectric films fabricated by solid-state reaction between metallic Pr and SiO2 underlayers. A non-destructive depth profiling using synchrotron radiation excited photoelectron spectroscopy (SR-PES), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) were employed to examine the chemical composition and microstructure. Ab initio calculations were done to gain insight into the physical processes involved. SR-PES results indicate that Pr deposition at room temperature (RT) leads to the formation of a Pr silicide and a Pr oxide, what is in good agreement with the scenario expected from ab initio calculations. As revealed by TEM and electrical measurements, oxidation of the reacted structures, followed by annealing, results in a stacked dielectric composed of a SiO2-based buffer with an enhanced permittivity and a Pr silicate film with a high dielectric constant. The leakage current density of 10-4 A/cm2 was measured for stacks with capacitance equivalent thickness (CET) of 1.5 nm prepared by evaporation of the Pr layer on a 1.8 nm SiO2 film, followed by oxidation in air ambient and annealing in N2 atmosphere. The capacitance-voltage (C-V) curves exhibit a large flatband voltage (VFB) shift indicating the presence of a positive charge in the stack. Switching away from the Al contacts to Au gate electrodes introduces a significant reduction of the VFB by 1.3 eV, what is much more than the change expected from the work function difference between Al and Au (not, vert, similar0.9 eV). This in turn implies that VFB is strongly affected by the gate interface electrode.}, language = {en} } @misc{MuessigDabrowskiWengeretal., author = {M{\"u}ssig, Hans-Joachim and Dabrowski, Jarek Marek and Wenger, Christian and Lupina, Grzegorz and Sorge, Roland and Formanek, Peter and Zaumseil, Peter and Schmeißer, Dieter}, title = {Ultrathin Dielectric Films Grown by Solid Phase Reaction of Pr with SiO2}, series = {MRS Proceedings}, volume = {811}, journal = {MRS Proceedings}, issn = {1946-4274}, pages = {D7.10.}, language = {en} } @misc{RichardZoellnerChahineetal., author = {Richard, Marie-Ingrid and Z{\"o}llner, Marvin Hartwig and Chahine, Gilbert A. and Zaumseil, Peter and Capellini, Giovanni and H{\"a}berlen, Maik and Storck, Peter and Sch{\"u}lli, Tobias U. and Schr{\"o}der, Thomas}, title = {Structural Mapping of Functional Ge Layers Grown on Graded SiGe Buffers for sub-10 nm CMOS Applications Using Advanced X-ray Nano-Diffraction}, series = {ACS Applied Materials and Interfaces}, volume = {7}, journal = {ACS Applied Materials and Interfaces}, number = {48}, issn = {1944-8244}, doi = {10.1021/acsami.5b08645}, pages = {26696 -- 26700}, language = {en} } @misc{ZoellnerRichardChahineetal., author = {Z{\"o}llner, Marvin Hartwig and Richard, Marie-Ingrid and Chahine, Gilbert A. and Zaumseil, Peter and Reich, Christian and Capellini, Giovanni and Montalenti, Francesco and Marzegalli, Anna and Xie, Ya-Hong and Sch{\"u}lli, Tobias U. and H{\"a}berlen, Maik and Storck, Peter and Schroeder, Thomas}, title = {Imaging structure and composition homogeneity of 300 mm SiGe virtual substrates for advanced CMOS applications by scanning X-ray diffraction microscopy}, series = {ACS Applied Materials and Interfaces}, volume = {7}, journal = {ACS Applied Materials and Interfaces}, number = {17}, issn = {1944-8252}, doi = {10.1021/am508968b}, pages = {9031 -- 9037}, language = {en} } @inproceedings{LippertDabrowskiCostinaetal., author = {Lippert, Gunther and Dabrowski, Jarek Marek and Costina, Ioan and Lupina, Grzegorz and Ratzke, Markus and Zaumseil, Peter and M{\"u}ssig, Hans-Joachim}, title = {Morphology and Composition of Praseodymium Based High-k Materials and Their Relevance to Dielectric Properties of Thin-Films}, language = {en} } @misc{CapelliniDeSetaZaumseiletal., author = {Capellini, Giovanni and De Seta, Monica and Zaumseil, Peter and Kozłowski, Grzegorz and Schroeder, Thomas}, title = {High temperature x-ray diffraction measurements on Ge/Si(001) heterostructures: a study on the residual tensile strain}, series = {Journal of Applied Physics}, volume = {111}, journal = {Journal of Applied Physics}, number = {7}, issn = {0021-8979}, doi = {10.1063/1.3702443}, language = {en} } @misc{ZaumseilKozłowskiYamamotoetal., author = {Zaumseil, Peter and Kozłowski, Grzegorz and Yamamoto, Yuji and Schubert, Markus Andreas and Schroeder, Thomas}, title = {X-ray Characterization of Ge Dots Epitaxially Grown on Nano-structured Si Islands on SOI Substrates}, series = {Journal of Applied Crystallography}, volume = {46}, journal = {Journal of Applied Crystallography}, number = {4}, issn = {0021-8898}, pages = {868 -- 873}, language = {en} } @misc{OehmeWidmannKosteckietal., author = {Oehme, Michael and Widmann, Daniel and Kostecki, Konrad and Zaumseil, Peter and Schwartz, Bernhard and Gollhofer, Martin and K{\"o}rner, Roman and Bechler, Stefan and Kittler, Martin and Kasper, Erich and Schulze, J{\"o}rg}, title = {GeSn/Ge Multi Quantum Well Photodetectors on Si Substrates}, series = {Optics Letters}, volume = {39}, journal = {Optics Letters}, number = {16}, issn = {1539-4794}, doi = {10.1364/OL.39.004711}, pages = {4711 -- 4714}, language = {en} } @misc{DiGaspareSabbaghDeSetaetal., author = {Di Gaspare, L. and Sabbagh, D. and De Seta, Monica and Sodo, A. and Wirths, S. and Buca, Dan and Zaumseil, Peter and Schroeder, Thomas and Capellini, Giovanni}, title = {A very low temperature epi-cleaning process for Ge / GeSn heterostructures}, series = {Journal of Applied Physics}, volume = {117}, journal = {Journal of Applied Physics}, issn = {1089-7550}, doi = {10.1063/1.4906616}, pages = {045306}, language = {en} } @misc{TaokaAsanoYamahaetal., author = {Taoka, Noriyuki and Asano, Takanori and Yamaha, Takashi and Terashima, Tatsuya and Nakatsuka, Osamu and Costina, Ioan and Zaumseil, Peter and Capellini, Giovanni and Zaima, Shigeaki and Schroeder, Thomas}, title = {Non-uniform depth distributions of Sn concentration induced by Sn migration and desorption during GeSnSi layer formation}, series = {Applied Physics Letters}, volume = {106}, journal = {Applied Physics Letters}, issn = {1077-3118}, doi = {10.1063/1.4908121}, pages = {061107-1 -- 061107-5}, language = {en} } @misc{WirthsTroitschMussleretal., author = {Wirths, S. and Troitsch, R. and Mussler, G. and Stoica, T. and Hartmann, J.-M. and Zaumseil, Peter and Schroeder, Thomas and Mantl, Siegfried and Buca, Dan}, title = {Ternary and Quaternary Ni(Si)GeSn Contact Formation for highly strained Ge p- and n-MOSFETs}, series = {Semiconductor Science and Technology}, volume = {30}, journal = {Semiconductor Science and Technology}, number = {5}, issn = {0268-1242}, doi = {10.1088/0268-1242/30/5/055003}, pages = {055003}, language = {en} } @misc{NiuCapelliniLupinaetal., author = {Niu, Gang and Capellini, Giovanni and Lupina, Grzegorz and Niermann, Tore and Salvalaglio, Marco and Marzegalli, Anna and Schubert, Markus Andreas and Zaumseil, Peter and Krause, Hans-Michael and Skibitzki, Oliver and Lehmann, Michael and Montalenti, Francesco and Xie, Ya-Hong and Schr{\"o}der, Thomas}, title = {Photodetection in hybrid single layer graphene/fully coherent Ge island nanostructures selectively grown on Si nano-tip patterns}, series = {ACS Applied Materials and Interfaces}, volume = {8}, journal = {ACS Applied Materials and Interfaces}, number = {3}, issn = {1944-8252}, pages = {2017 -- 2026}, language = {en} } @misc{ZaumseilSchubertYamamotoetal., author = {Zaumseil, Peter and Schubert, Markus Andreas and Yamamoto, Yuji and Skibitzki, Oliver and Capellini, Giovanni and Schr{\"o}der, Thomas}, title = {Misfit dislocation-free epitaxial growth of SiGe on compliant nanostructured Silicon}, series = {Solid State Phenomena}, volume = {242}, journal = {Solid State Phenomena}, issn = {1662-9779}, doi = {10.4028/www.scientific.net/SSP.242.402}, pages = {402 -- 407}, language = {en} } @misc{TaokaCapelliniDrieschetal., author = {Taoka, Noriyuki and Capellini, Giovanni and Driesch, Nils von den and Buca, Dan and Zaumseil, Peter and Schubert, Markus Andreas and Klesse, Wolfgang Matthias and Montanari, Michele and Schr{\"o}der, Thomas}, title = {Sn Migration Control at High Temperature Due to High Deposition Speed for Forming High Quality GeSn Layer}, series = {Applied Physics Express}, volume = {9}, journal = {Applied Physics Express}, number = {3}, issn = {1882-0786}, doi = {10.7567/APEX.9.031201}, pages = {031201}, language = {en} } @misc{NiuCapelliniSchubertetal., author = {Niu, Gang and Capellini, Giovanni and Schubert, Markus Andreas and Niermann, Tore and Zaumseil, Peter and Katzer, Jens and Krause, Hans-Michael and Skibitzki, Oliver and Lehmann, Michael and Xie, Ya-Hong and K{\"a}nel, Hans von and Schr{\"o}der, Thomas}, title = {Dislocation-free Ge nano-crystals via pattern dependent selective Ge heteroepitaxy on Si nano-tip wafers}, series = {Scientific Reports}, volume = {6}, journal = {Scientific Reports}, issn = {2045-2322}, doi = {10.1038/srep22709}, pages = {22709}, language = {en} } @misc{EngelhardKlempBehringeretal., author = {Engelhard, M. and Klemp, C. and Behringer, M. and Rudolph, A. and Skibitzki, Oliver and Zaumseil, Peter and Schr{\"o}der, Thomas}, title = {Characterization of reclaimed GaAs substrates and investigation of reuse for thin film InGaAlP LED epitaxial growth}, series = {Journal of Applied Physics}, volume = {120}, journal = {Journal of Applied Physics}, number = {4}, issn = {1089-7550}, doi = {10.1063/1.4955333}, pages = {045301}, language = {en} } @misc{NiuCapelliniHatamietal., author = {Niu, Gang and Capellini, Giovanni and Hatami, Fariba and Bartolomeo, Antonio di and Niermann, Tore and Hameed, Hussein Emad and Schubert, Markus Andreas and Krause, Hans-Michael and Zaumseil, Peter and Skibitzki, Oliver and Masselink, William T. and Lehmann, Michael and Xie, Ya-Hong and Schr{\"o}der, Thomas}, title = {Selective Epitaxy of InP on Si and Rectification in Graphene/InP/Si Hybrid Structure}, series = {ACS Applied Materials and Interfaces}, volume = {8}, journal = {ACS Applied Materials and Interfaces}, number = {40}, issn = {1944-8244}, doi = {10.1021/acsami.6b09592}, pages = {26948 -- 26955}, language = {en} }