Synthesis and characterization of a Sb2Te3/Bi2Te3 p-n junction heterostructure via electrodeposition in nanoporous membranes

Summary: Topological insulators (TIs) are bulk insulators with metallic surface states that can be described by a single Dirac cone. However, low-dimensional solids such as nanowires (NWs) are a challenge, due to the difficulty of separating surface contributions from bulk carriers. Fabrication of N...

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Main Authors: Rashmi Rani, Sandrine Tusseau-Nenez, Pierre-Eugene Coulon, Travis.L. Wade, Marcin Konczykowski
Format: Article
Language:English
Published: Elsevier 2021-06-01
Series:iScience
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589004221006623
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spelling doaj-e2c988e9798b4f1cab361b15bb2b55932021-06-27T04:39:40ZengElsevieriScience2589-00422021-06-01246102694Synthesis and characterization of a Sb2Te3/Bi2Te3 p-n junction heterostructure via electrodeposition in nanoporous membranesRashmi Rani0Sandrine Tusseau-Nenez1Pierre-Eugene Coulon2Travis.L. Wade3Marcin Konczykowski4Laboratoire des Solides Irradiés, UMR 7642 CEA-CNRS-Ecole polytechnique, France; Corresponding authorLaboratoire de Physique de la Matière Condensée, UMR 7643 CNRS-Ecole polytechnique, FranceLaboratoire des Solides Irradiés, UMR 7642 CEA-CNRS-Ecole polytechnique, FranceLaboratoire des Solides Irradiés, UMR 7642 CEA-CNRS-Ecole polytechnique, FranceLaboratoire des Solides Irradiés, UMR 7642 CEA-CNRS-Ecole polytechnique, FranceSummary: Topological insulators (TIs) are bulk insulators with metallic surface states that can be described by a single Dirac cone. However, low-dimensional solids such as nanowires (NWs) are a challenge, due to the difficulty of separating surface contributions from bulk carriers. Fabrication of NWs with high surface-to-volume ratio can be realized by different methods such as chemical vapor transport, molecular beam epitaxy, and electrodeposition. The last method is used in the present work allowing the growth of structures such as p-n junctions, intercalation of magnetic or superconducting dots. We report the synthesis of high-quality TI NW: Bi2Te3, Sb2Te3 and p-n junction via electrodeposition. Structural, morphological, and nanostructure properties of NWs have been investigated by various characterization techniques. Interface structures and lateral heterojunctions (LHJ) in p-n junction NWs has also been made.http://www.sciencedirect.com/science/article/pii/S2589004221006623Nanosciencematerials sciencematerials synthesis
collection DOAJ
language English
format Article
sources DOAJ
author Rashmi Rani
Sandrine Tusseau-Nenez
Pierre-Eugene Coulon
Travis.L. Wade
Marcin Konczykowski
spellingShingle Rashmi Rani
Sandrine Tusseau-Nenez
Pierre-Eugene Coulon
Travis.L. Wade
Marcin Konczykowski
Synthesis and characterization of a Sb2Te3/Bi2Te3 p-n junction heterostructure via electrodeposition in nanoporous membranes
iScience
Nanoscience
materials science
materials synthesis
author_facet Rashmi Rani
Sandrine Tusseau-Nenez
Pierre-Eugene Coulon
Travis.L. Wade
Marcin Konczykowski
author_sort Rashmi Rani
title Synthesis and characterization of a Sb2Te3/Bi2Te3 p-n junction heterostructure via electrodeposition in nanoporous membranes
title_short Synthesis and characterization of a Sb2Te3/Bi2Te3 p-n junction heterostructure via electrodeposition in nanoporous membranes
title_full Synthesis and characterization of a Sb2Te3/Bi2Te3 p-n junction heterostructure via electrodeposition in nanoporous membranes
title_fullStr Synthesis and characterization of a Sb2Te3/Bi2Te3 p-n junction heterostructure via electrodeposition in nanoporous membranes
title_full_unstemmed Synthesis and characterization of a Sb2Te3/Bi2Te3 p-n junction heterostructure via electrodeposition in nanoporous membranes
title_sort synthesis and characterization of a sb2te3/bi2te3 p-n junction heterostructure via electrodeposition in nanoporous membranes
publisher Elsevier
series iScience
issn 2589-0042
publishDate 2021-06-01
description Summary: Topological insulators (TIs) are bulk insulators with metallic surface states that can be described by a single Dirac cone. However, low-dimensional solids such as nanowires (NWs) are a challenge, due to the difficulty of separating surface contributions from bulk carriers. Fabrication of NWs with high surface-to-volume ratio can be realized by different methods such as chemical vapor transport, molecular beam epitaxy, and electrodeposition. The last method is used in the present work allowing the growth of structures such as p-n junctions, intercalation of magnetic or superconducting dots. We report the synthesis of high-quality TI NW: Bi2Te3, Sb2Te3 and p-n junction via electrodeposition. Structural, morphological, and nanostructure properties of NWs have been investigated by various characterization techniques. Interface structures and lateral heterojunctions (LHJ) in p-n junction NWs has also been made.
topic Nanoscience
materials science
materials synthesis
url http://www.sciencedirect.com/science/article/pii/S2589004221006623
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AT travislwade synthesisandcharacterizationofasb2te3bi2te3pnjunctionheterostructureviaelectrodepositioninnanoporousmembranes
AT marcinkonczykowski synthesisandcharacterizationofasb2te3bi2te3pnjunctionheterostructureviaelectrodepositioninnanoporousmembranes
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