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Title: Selective Laser-Assisted Synthesis of Tubular van der Waals Heterostructures of Single-Layered PbI{sub 2} within Carbon Nanotubes Exhibiting Carrier Photogeneration

Abstract

The electronic and optical properties of two-dimensional layered materials allow the miniaturization of nanoelectronic and optoelectronic devices in a competitive manner. Even larger opportunities arise when two or more layers of different materials are combined. Here, we report on an ultrafast energy efficient strategy, using laser irradiation, which allows bulk synthesis of crystalline single-layered lead iodide in the cavities of carbon nanotubes by forming cylindrical van der Waals heterostructures. In contrast to the filling of van der Waals solids into carbon nanotubes by conventional thermal annealing, which favors the formation of inorganic nanowires, the present strategy is highly selective toward the growth of monolayers forming lead iodide nanotubes. The irradiated bulk material bearing the nanotubes reveals a decrease of the resistivity as well as a significant increase in the current flow upon illumination. Both effects are attributed to the presence of single-walled lead iodide nanotubes in the cavities of carbon nanotubes, which dominate the properties of the whole matrix. The present study brings in a simple, ultrafast and energy efficient strategy for the tailored synthesis of rolled-up single-layers of lead iodide (i.e., single-walled PbI{sub 2} nanotubes), which we believe could be expanded to other two-dimensional (2D) van der Waals solids.more » In fact, initial tests with ZnI{sub 2} already reveal the formation of single-walled ZnI{sub 2} nanotubes, thus proving the versatility of the approach.« less

Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
22946865
Resource Type:
Journal Article
Journal Name:
ACS Nano
Additional Journal Information:
Journal Volume: 12; Journal Issue: 7; Other Information: OAI: vinar.vin.bg.ac.rs:123456789/7933; Country of input: Serbia; Journal ID: ISSN 1936-0851
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 60 APPLIED LIFE SCIENCES; CARBON NANOTUBES; CRYSTAL DEFECTS; CYLINDRICAL CONFIGURATION; ENCAPSULATION; LASER RADIATION; LAYERS; LEAD IODIDES; MATERIALS; OPTICAL PROPERTIES; OPTOELECTRONIC DEVICES; SYNTHESIS; TWO-DIMENSIONAL SYSTEMS; VAN DER WAALS FORCES; ZINC IODIDES

Citation Formats

Sandoval, Stefania, Kepić, Dejan P., Perez del Pino, Angel, Gyorgy, Eniko, Gomez, Andres, and others, and. Selective Laser-Assisted Synthesis of Tubular van der Waals Heterostructures of Single-Layered PbI{sub 2} within Carbon Nanotubes Exhibiting Carrier Photogeneration. United States: N. p., 2018. Web. doi:10.1021/ACSNANO.8B01638.
Sandoval, Stefania, Kepić, Dejan P., Perez del Pino, Angel, Gyorgy, Eniko, Gomez, Andres, & others, and. Selective Laser-Assisted Synthesis of Tubular van der Waals Heterostructures of Single-Layered PbI{sub 2} within Carbon Nanotubes Exhibiting Carrier Photogeneration. United States. https://doi.org/10.1021/ACSNANO.8B01638
Sandoval, Stefania, Kepić, Dejan P., Perez del Pino, Angel, Gyorgy, Eniko, Gomez, Andres, and others, and. Sun . "Selective Laser-Assisted Synthesis of Tubular van der Waals Heterostructures of Single-Layered PbI{sub 2} within Carbon Nanotubes Exhibiting Carrier Photogeneration". United States. https://doi.org/10.1021/ACSNANO.8B01638.
@article{osti_22946865,
title = {Selective Laser-Assisted Synthesis of Tubular van der Waals Heterostructures of Single-Layered PbI{sub 2} within Carbon Nanotubes Exhibiting Carrier Photogeneration},
author = {Sandoval, Stefania and Kepić, Dejan P. and Perez del Pino, Angel and Gyorgy, Eniko and Gomez, Andres and others, and},
abstractNote = {The electronic and optical properties of two-dimensional layered materials allow the miniaturization of nanoelectronic and optoelectronic devices in a competitive manner. Even larger opportunities arise when two or more layers of different materials are combined. Here, we report on an ultrafast energy efficient strategy, using laser irradiation, which allows bulk synthesis of crystalline single-layered lead iodide in the cavities of carbon nanotubes by forming cylindrical van der Waals heterostructures. In contrast to the filling of van der Waals solids into carbon nanotubes by conventional thermal annealing, which favors the formation of inorganic nanowires, the present strategy is highly selective toward the growth of monolayers forming lead iodide nanotubes. The irradiated bulk material bearing the nanotubes reveals a decrease of the resistivity as well as a significant increase in the current flow upon illumination. Both effects are attributed to the presence of single-walled lead iodide nanotubes in the cavities of carbon nanotubes, which dominate the properties of the whole matrix. The present study brings in a simple, ultrafast and energy efficient strategy for the tailored synthesis of rolled-up single-layers of lead iodide (i.e., single-walled PbI{sub 2} nanotubes), which we believe could be expanded to other two-dimensional (2D) van der Waals solids. In fact, initial tests with ZnI{sub 2} already reveal the formation of single-walled ZnI{sub 2} nanotubes, thus proving the versatility of the approach.},
doi = {10.1021/ACSNANO.8B01638},
url = {https://www.osti.gov/biblio/22946865}, journal = {ACS Nano},
issn = {1936-0851},
number = 7,
volume = 12,
place = {United States},
year = {2018},
month = {7}
}