Non‐Volatile Resistive Switching in Nanoscaled Elemental Tellurium by Vapor Transport Deposition on Gold

Abstract Two‐dimensional (2D) materials are promising for resistive switching in neuromorphic and in‐memory computing, as their atomic thickness substantially improve the energetic budget of the device and circuits. However, many 2D resistive switching materials struggle with complex growth methods...

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Main Authors: Sara Ghomi, Christian Martella, Yoonseok Lee, Penny Hui‐Ping Chang, Paolo Targa, Andrea Serafini, Davide Codegoni, Chiara Massetti, Sepideh Gharedaghi, Alessio Lamperti, Carlo Grazianetti, Deji Akinwande, Alessandro Molle
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Advanced Science
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Online Access:https://doi.org/10.1002/advs.202406703
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author Sara Ghomi
Christian Martella
Yoonseok Lee
Penny Hui‐Ping Chang
Paolo Targa
Andrea Serafini
Davide Codegoni
Chiara Massetti
Sepideh Gharedaghi
Alessio Lamperti
Carlo Grazianetti
Deji Akinwande
Alessandro Molle
author_facet Sara Ghomi
Christian Martella
Yoonseok Lee
Penny Hui‐Ping Chang
Paolo Targa
Andrea Serafini
Davide Codegoni
Chiara Massetti
Sepideh Gharedaghi
Alessio Lamperti
Carlo Grazianetti
Deji Akinwande
Alessandro Molle
author_sort Sara Ghomi
collection DOAJ
description Abstract Two‐dimensional (2D) materials are promising for resistive switching in neuromorphic and in‐memory computing, as their atomic thickness substantially improve the energetic budget of the device and circuits. However, many 2D resistive switching materials struggle with complex growth methods or limited scalability. 2D tellurium exhibits striking characteristics such as simplicity in chemistry, structure, and synthesis making it suitable for various applications. This study reports the first memristor design based on nanoscaled tellurium synthesized by vapor transport deposition (VTD) at a temperature as low as 100 °C fully compatible with back‐end‐of‐line processing. The resistive switching behavior of tellurium nanosheets is studied by conductive atomic force microscopy, providing valuable insights into its memristive functionality, supported by microscale device measurements. Selecting gold as the substrate material enhances the memristive behavior of nanoscaled tellurium in terms of reduced values of set voltage and energy consumption. In addition, formation of conductive paths leading to resistive switching behavior on the gold substrate is driven by gold‐tellurium interface reconfiguration during the VTD process as revealed by energy electron loss spectroscopy analysis. These findings reveal the potential of nanoscaled tellurium as a versatile and scalable material for neuromorphic computing and underscore the influential role of gold electrodes in enhancing its memristive performance.
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spelling doaj-art-07b0986a23a044fb9a7d83212e17d3332025-01-09T11:44:45ZengWileyAdvanced Science2198-38442025-01-01121n/an/a10.1002/advs.202406703Non‐Volatile Resistive Switching in Nanoscaled Elemental Tellurium by Vapor Transport Deposition on GoldSara Ghomi0Christian Martella1Yoonseok Lee2Penny Hui‐Ping Chang3Paolo Targa4Andrea Serafini5Davide Codegoni6Chiara Massetti7Sepideh Gharedaghi8Alessio Lamperti9Carlo Grazianetti10Deji Akinwande11Alessandro Molle12CNR IMM Unit of Agrate Brianza via C. Olivetti 2 Agrate Brianza 20864 ItalyCNR IMM Unit of Agrate Brianza via C. Olivetti 2 Agrate Brianza 20864 ItalyMicroelectronics Research Center The University of Texas at Austin Austin Texas 78758 USAMicroelectronics Research Center The University of Texas at Austin Austin Texas 78758 USASTMicroelectronics via C. Olivetti 2 Agrate Brianza 20864 ItalySTMicroelectronics via C. Olivetti 2 Agrate Brianza 20864 ItalySTMicroelectronics via C. Olivetti 2 Agrate Brianza 20864 ItalyCNR IMM Unit of Agrate Brianza via C. Olivetti 2 Agrate Brianza 20864 ItalyCNR IMM Unit of Agrate Brianza via C. Olivetti 2 Agrate Brianza 20864 ItalyCNR IMM Unit of Agrate Brianza via C. Olivetti 2 Agrate Brianza 20864 ItalyCNR IMM Unit of Agrate Brianza via C. Olivetti 2 Agrate Brianza 20864 ItalyMicroelectronics Research Center The University of Texas at Austin Austin Texas 78758 USACNR IMM Unit of Agrate Brianza via C. Olivetti 2 Agrate Brianza 20864 ItalyAbstract Two‐dimensional (2D) materials are promising for resistive switching in neuromorphic and in‐memory computing, as their atomic thickness substantially improve the energetic budget of the device and circuits. However, many 2D resistive switching materials struggle with complex growth methods or limited scalability. 2D tellurium exhibits striking characteristics such as simplicity in chemistry, structure, and synthesis making it suitable for various applications. This study reports the first memristor design based on nanoscaled tellurium synthesized by vapor transport deposition (VTD) at a temperature as low as 100 °C fully compatible with back‐end‐of‐line processing. The resistive switching behavior of tellurium nanosheets is studied by conductive atomic force microscopy, providing valuable insights into its memristive functionality, supported by microscale device measurements. Selecting gold as the substrate material enhances the memristive behavior of nanoscaled tellurium in terms of reduced values of set voltage and energy consumption. In addition, formation of conductive paths leading to resistive switching behavior on the gold substrate is driven by gold‐tellurium interface reconfiguration during the VTD process as revealed by energy electron loss spectroscopy analysis. These findings reveal the potential of nanoscaled tellurium as a versatile and scalable material for neuromorphic computing and underscore the influential role of gold electrodes in enhancing its memristive performance.https://doi.org/10.1002/advs.202406703conductive AFMmemristorsresistive switchingtellurenetellurium2D materials
spellingShingle Sara Ghomi
Christian Martella
Yoonseok Lee
Penny Hui‐Ping Chang
Paolo Targa
Andrea Serafini
Davide Codegoni
Chiara Massetti
Sepideh Gharedaghi
Alessio Lamperti
Carlo Grazianetti
Deji Akinwande
Alessandro Molle
Non‐Volatile Resistive Switching in Nanoscaled Elemental Tellurium by Vapor Transport Deposition on Gold
Advanced Science
conductive AFM
memristors
resistive switching
tellurene
tellurium
2D materials
title Non‐Volatile Resistive Switching in Nanoscaled Elemental Tellurium by Vapor Transport Deposition on Gold
title_full Non‐Volatile Resistive Switching in Nanoscaled Elemental Tellurium by Vapor Transport Deposition on Gold
title_fullStr Non‐Volatile Resistive Switching in Nanoscaled Elemental Tellurium by Vapor Transport Deposition on Gold
title_full_unstemmed Non‐Volatile Resistive Switching in Nanoscaled Elemental Tellurium by Vapor Transport Deposition on Gold
title_short Non‐Volatile Resistive Switching in Nanoscaled Elemental Tellurium by Vapor Transport Deposition on Gold
title_sort non volatile resistive switching in nanoscaled elemental tellurium by vapor transport deposition on gold
topic conductive AFM
memristors
resistive switching
tellurene
tellurium
2D materials
url https://doi.org/10.1002/advs.202406703
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