Výsledky vyhledávání

Contact Architecture Controls Conductance in Monolayer Devices

Autor: Gregor Koblmüller, Paolo Lugli, H. Riedl, Kai Saller, Kung-Ching Liao, Marc Tornow, Jeffrey Schwartz

Publikováno v: ACS applied materialsinterfaces. 12(25)

The architecture of electrically contacting the self-assembled monolayer (SAM) of an organophosphonate has a profound effect on a device where the SAM serves as an intermolecular conductive channel in the plane of the substrate. Nanotransfer printing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0ced5254b8d7e00d15d9e2a8361cec3
https://pubmed.ncbi.nlm.nih.gov/32519835

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Optical absorption of composition-tunable InGaAs nanowire arrays

Autor: Gerhard Abstreiter, K Ott, J. Treu, Xiaomo Xu, Gregor Koblmüller, Kai Saller, Jonathan J. Finley

Publikováno v: Nanotechnology. 30:495703

InGaAs nanowire (NW) arrays have emerged as important active materials in future photovoltaic and photodetector applications, due to their excellent electronic properties and tunable band gap. Here, we report a systematic investigation of the optical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11e972240688394821b5e7cf07a3bf88
https://doi.org/10.1088/1361-6528/ab3ef7

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One-step transfer printing of patterned nanogap electrodes

Autor: H. Riedl, Marc Tornow, Paolo Lugli, Kai Saller, Gregor Koblmüller

Publikováno v: Journal of Vacuum Science & Technology B. 37:040602

Direct printing of nanogap-separated metallic contact pairs is described that enables novel nanoelectronic device architectures. Nanotransfer printing (nTP) stamps are grown by molecular beam epitaxy involving layered III-V semiconductors that are se

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b35218bec25826b57d69b83b53c6d245
https://doi.org/10.1116/1.5100560

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Direct Measurements of Fermi Level Pinning at the Surface of Intrinsically n-Type InGaAs Nanowires

Autor: Maximilian, Speckbacher, Julian, Treu, Thomas J, Whittles, Wojciech M, Linhart, Xiaomo, Xu, Kai, Saller, Vinod R, Dhanak, Gerhard, Abstreiter, Jonathan J, Finley, Tim D, Veal, Gregor, Koblmüller

Publikováno v: Nano letters. 16(8)

Surface effects strongly dominate the intrinsic properties of semiconductor nanowires (NWs), an observation that is commonly attributed to the presence of surface states and their modification of the electronic band structure. Although the effects of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::d1f25db9e90c138c209426c0ddd616de
https://pubmed.ncbi.nlm.nih.gov/27458736

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MBE growth of low threshold GaSb-based lasers with emission wavelengths in the range of 2.5–2.7 μm

Autor: Gerhard Boehm, Stefan Sprengel, Ralf Meyer, Markus-Christian Amann, Shamsul Arafin, A. Bachmann, Kristijonas Vizbaras, Kai Saller

Publikováno v: Journal of Crystal Growth. 323:446-449

In this work, we present our approach towards the growth of active regions and cladding layers for GaSb based record low-threshold lasers emitting in the range of 2.5–2.7 μm. First, a study on Sb incorporation in the AlGaAsSb cladding layers and G

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e2317434ebe343c5a0a286dc464a93bb
https://doi.org/10.1016/j.jcrysgro.2010.11.139

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Lattice-Matched InGaAs-InAlAs Core-Shell Nanowires with Improved Luminescence and Photoresponse Properties

Autor: Julian, Treu, Thomas, Stettner, Marc, Watzinger, Stefanie, Morkötter, Markus, Döblinger, Sonja, Matich, Kai, Saller, Max, Bichler, Gerhard, Abstreiter, Jonathan J, Finley, Julian, Stangl, Gregor, Koblmüller

Publikováno v: Nano Letters

Core–shell nanowires (NW) have become very prominent systems for band engineered NW heterostructures that effectively suppress detrimental surface states and improve performance of related devices. This concept is particularly attractive for materi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::39041f64db50fccd24a2c01111095ec1
https://pubmed.ncbi.nlm.nih.gov/25922974

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Strong terahertz emission and its origin from catalyst-free InAs nanowire arrays

Autor: J. Treu, A. Arlauskas, Gregor Koblmüller, Ieva Beleckaitė, Arunas Krotkus, Kai Saller

Publikováno v: Nano letters. 14(3)

The unique features of nanowires (NW), such as the high aspect ratio and extensive surface area, are expected to play a key role in the development of very efficient semiconductor surface emitters in the terahertz (THz) spectral range. Here, we repor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8043aa701b654eb236cd6bb0999fd126
https://pubmed.ncbi.nlm.nih.gov/24502812

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Enhanced Luminescence Properties of InAs–InAsP Core–Shell Nanowires

Autor: Michael Bormann, Hannes Schmeiduch, J. Treu, Markus-Christian Amann, Sonja Matich, Gregor Koblmüller, Max Bichler, Kai Saller, Jonathan J. Finley, Benedikt Mayer, Markus Döblinger, Stefanie Morkötter, Peter R. Wiecha, Gerhard Abstreiter

Publikováno v: Nano Letters
Nano Letters, American Chemical Society, 2013, 13 (12), pp.6070-6077. ⟨10.1021/nl403341x⟩

Utilizing narrow band gap nanowire (NW) materials to extend nanophotonic applications to the mid-infrared spectral region (>2-3 μm) is highly attractive, however, progress has been seriously hampered due to their poor radiative efficiencies arising

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60d94fd5858d99995c70f7e4eef81d50
https://hal.archives-ouvertes.fr/hal-02484140

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