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Title: Opto-mechano-electrical tripling in ZnO nanowires probed by photocurrent spectroscopy in a high-resolution transmission electron microscope

Abstract

Photocurrent spectroscopy of individual free-standing ZnO nanowires inside a high-resolution transmission electron microscope (TEM) is reported. By using specially designed optical in situ TEM system capable of scanning tunneling microscopy probing paired with light illumination, opto-mechano-electrical tripling phenomenon in ZnO nanowires is demonstrated. Splitting of photocurrent spectra at around 3.3 eV under in situ TEM bending of ZnO nanowires directly corresponds to nanowire deformation and appearance of expanded and compressed nanowire sides. Theoretical simulation of a bent ZnO nanowire has an excellent agreement with the experimental data. The splitting effect could be explained by a change in the valence band structure of ZnO nanowires due to a lattice strain. The strain-induced splitting provides important clues for future flexible piezo-phototronics.

Authors:
;  [1]; ; ;  [2];  [1]
  1. National University of Science and Technology, MISIS, Leninskiy Prospect 4, Moscow 119049 (Russian Federation)
  2. International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 3050044 (Japan)
Publication Date:
OSTI Identifier:
22489182
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 107; Journal Issue: 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BENDING; DESIGN; EV RANGE 01-10; ILLUMINANCE; NANOWIRES; RESOLUTION; SCANNING TUNNELING MICROSCOPY; SIMULATION; SPECTRA; SPECTROSCOPY; STRAINS; TRANSMISSION ELECTRON MICROSCOPY; VALENCE; ZINC OXIDES

Citation Formats

Zhang, C., Golberg, D., E-mail: xuzhi@iphy.ac.cn, E-mail: golberg.dmitri@nims.go.jp, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1, Tsukuba, Ibaraki 3058577, Xu, Z., E-mail: xuzhi@iphy.ac.cn, E-mail: golberg.dmitri@nims.go.jp, Kvashnin, D. G., Tang, D. -M., Xue, Y. M., Bando, Y., Sorokin, P. B., and Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny 141700. Opto-mechano-electrical tripling in ZnO nanowires probed by photocurrent spectroscopy in a high-resolution transmission electron microscope. United States: N. p., 2015. Web. doi:10.1063/1.4929812.
Zhang, C., Golberg, D., E-mail: xuzhi@iphy.ac.cn, E-mail: golberg.dmitri@nims.go.jp, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1, Tsukuba, Ibaraki 3058577, Xu, Z., E-mail: xuzhi@iphy.ac.cn, E-mail: golberg.dmitri@nims.go.jp, Kvashnin, D. G., Tang, D. -M., Xue, Y. M., Bando, Y., Sorokin, P. B., & Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny 141700. Opto-mechano-electrical tripling in ZnO nanowires probed by photocurrent spectroscopy in a high-resolution transmission electron microscope. United States. https://doi.org/10.1063/1.4929812
Zhang, C., Golberg, D., E-mail: xuzhi@iphy.ac.cn, E-mail: golberg.dmitri@nims.go.jp, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1, Tsukuba, Ibaraki 3058577, Xu, Z., E-mail: xuzhi@iphy.ac.cn, E-mail: golberg.dmitri@nims.go.jp, Kvashnin, D. G., Tang, D. -M., Xue, Y. M., Bando, Y., Sorokin, P. B., and Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny 141700. 2015. "Opto-mechano-electrical tripling in ZnO nanowires probed by photocurrent spectroscopy in a high-resolution transmission electron microscope". United States. https://doi.org/10.1063/1.4929812.
@article{osti_22489182,
title = {Opto-mechano-electrical tripling in ZnO nanowires probed by photocurrent spectroscopy in a high-resolution transmission electron microscope},
author = {Zhang, C. and Golberg, D., E-mail: xuzhi@iphy.ac.cn, E-mail: golberg.dmitri@nims.go.jp and Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1, Tsukuba, Ibaraki 3058577 and Xu, Z., E-mail: xuzhi@iphy.ac.cn, E-mail: golberg.dmitri@nims.go.jp and Kvashnin, D. G. and Tang, D. -M. and Xue, Y. M. and Bando, Y. and Sorokin, P. B. and Moscow Institute of Physics and Technology, Institutsky Lane 9, Dolgoprudny 141700},
abstractNote = {Photocurrent spectroscopy of individual free-standing ZnO nanowires inside a high-resolution transmission electron microscope (TEM) is reported. By using specially designed optical in situ TEM system capable of scanning tunneling microscopy probing paired with light illumination, opto-mechano-electrical tripling phenomenon in ZnO nanowires is demonstrated. Splitting of photocurrent spectra at around 3.3 eV under in situ TEM bending of ZnO nanowires directly corresponds to nanowire deformation and appearance of expanded and compressed nanowire sides. Theoretical simulation of a bent ZnO nanowire has an excellent agreement with the experimental data. The splitting effect could be explained by a change in the valence band structure of ZnO nanowires due to a lattice strain. The strain-induced splitting provides important clues for future flexible piezo-phototronics.},
doi = {10.1063/1.4929812},
url = {https://www.osti.gov/biblio/22489182}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 9,
volume = 107,
place = {United States},
year = {Mon Aug 31 00:00:00 EDT 2015},
month = {Mon Aug 31 00:00:00 EDT 2015}
}