Symmetry/Asymmetry in Advanced Nanotechnologies

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Chemistry: Symmetry/Asymmetry".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 2613

Special Issue Editors

School of Industrial Engineering, Purdue University, West Lafayette, IN 47906, USA
Interests: functional nanomaterials; energy harvesting and conversion; wearable electronics
Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
Interests: exotic physical properties of low-dimensional materials; nonvolatile memory devices; novel techniques/setups for material characterization
Zhejiang Lab, Hangzhou 311121, China
Interests: field-effect transistors; two-dimensional materials; lasing

Special Issue Information

Dear Colleagues,

Nature gives us a wonderful world with symmetric and asymmetric structures, which present different functions in our life. People always utilize the gifts of nature (symmetric or asymmetric) to realize the facilitation of our work in various fields. Symmetry and asymmetry play an important role in designing advanced nanodevices, opening a vast and highly interdisciplinary area that includes physics, chemistry, electrical engineering, etc. The study of the symmetric features of nanocrystals is essential for helping to obtain fundamental knowledge in nanoscience. In addition, symmetry breaking has enabled breakthroughs with unprecedented properties and performance. The exploration of intrinsic and artificial symmetries inspires new strategies in designing advanced nanotechnologies and provides a platform for the further development of state-of-the-art nanotechnologies. This Special Issue invites researchers to submit original research papers and review articles on symmetry- or asymmetry-related phenomena, the characterization of symmetries in nanosystems, and the design and preparation of symmetric and asymmetric structures in nanotechnologies.

Dr. Ruoxing Wang
Dr. Xuegang Chen
Dr. Yixiu Wang
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • nanotechnology
  • symmetry/asymmetry
  • crystal design and growth
  • chirality
  • time/spatial symmetry

Published Papers (1 paper)

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Research

8 pages, 1876 KiB  
Article
Enhancing Hot Electron Injection in Plasmonic Photodetectors through Roughened Interfaces
by Long Xiao, Shancheng Yan, Tianhong Chen, Junzhuan Wang and Yi Shi
Symmetry 2022, 14(8), 1628; https://0-doi-org.brum.beds.ac.uk/10.3390/sym14081628 - 07 Aug 2022
Cited by 2 | Viewed by 1025
Abstract
Ongoing efforts have been made to improve the photoresponsivity of plasmonic photodetectors. In this work, the photodetectors based on transparent conductive oxide (TCO)/Semiconductor/Metal configuration especially with a roughened interface were investigated numerically, and the effect of the roughness on the injection efficiency of [...] Read more.
Ongoing efforts have been made to improve the photoresponsivity of plasmonic photodetectors. In this work, the photodetectors based on transparent conductive oxide (TCO)/Semiconductor/Metal configuration especially with a roughened interface were investigated numerically, and the effect of the roughness on the injection efficiency of hot electrons was analyzed. The simulated results indicate that a roughened structure alleviates effectively the momentum mismatch of hot electrons at the metal/semiconductor interface due to asymmetry factor, and greatly improves the injection efficiency as well as photoresponsivity. At the incidence wavelength of 1550 nm, the photoresponsivity increased by about 8 times. Meanwhile, the influence on the resonant wavelength shift is negligible where the roughness is nano-scale. Our work provides a valuable guidance for the theoretical and experimental research of plasmonic photodetectors. Full article
(This article belongs to the Special Issue Symmetry/Asymmetry in Advanced Nanotechnologies)
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