Advances in Optoelectronic Materials-Based Sensors and Devices

A special issue of Chemosensors (ISSN 2227-9040). This special issue belongs to the section "Applied Chemical Sensors".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 1972

Special Issue Editors

School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
Interests: two-dimensional optoelectronic materials; graphene; nanoelectronics; optoelectronics; NIR photodetctors; chemical sensors

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Guest Editor
National Graphene Institute, University of Manchester, Manchester M13 9PL, UK
Interests: two-dimensional optoelectronic materials; photodetctors; chemical sensors; superconducting quantum interference devices; graphene

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Guest Editor
Institute for Materials Discovery, University College London, Torrington Place, London WC1E 7JE, UK
Interests: organic electronics; thin film solar cells; photoelectrochemical biosensors; quantum dots; wearable sensors

Special Issue Information

Dear Colleagues,

The field of optoelectronic materials has witnessed tremendous growth in recent years, driven by the increasing demand for high-performance sensors and devices in various applications such as optical communications, health care, environmental monitoring and smart energy systems, etc. This Special Issue aims to collect recent developments in novel optoelectronic materials-based sensors and devices. A broad range of topics related to the design, fabrication, calculation and characterization of optoelectronic materials-based sensors and devices are provided below:

  • Novel optoelectronic materials and their properties;
  • Design and fabrication of optoelectronic sensors and devices;
  • Characterization techniques for optoelectronic materials and devices;
  • Performance characterization and optimization of optoelectronic sensors and devices;
  • Applications of optoelectronic sensors and devices in health care, environmental monitoring, smart energy systems, photodetection and sensing, and beyond.

We invite authors to submit original research and review manuscripts that address any of these topics or related areas. The combination of nanotechnology, physics, and engineering in this Special Issue is expected to provide an opportunity to design reliable, low-cost and easy-to-use nanodevices with different mechanisms and broad applications.

Dr. Hao Xu
Dr. Xiao Li
Dr. Mingqing Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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. Chemosensors is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • optoelectronic materials
  • nanomaterials
  • graphene and 2D materials
  • transition metal dichalcogenides (TMDs)
  • chemical sensors
  • photodetectors
  • energy stroage nanodevices
  • flexible nanodevices
  • theoretical calculations

Published Papers (1 paper)

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Research

12 pages, 7584 KiB  
Article
Wavelength-Stable Metal Grating Distributed Feedback Quantum Cascade Laser Emitting at λ ~ 7.2 μm
by Kedi Ma, Zizhuo Liu, Fengmin Cheng, Pengchang Yang, Hongxiao Li, Shan Niu, Gaohui Ge, Hao Xu, Ning Zhuo, Hui Su and Jinchuan Zhang
Chemosensors 2024, 12(1), 2; https://doi.org/10.3390/chemosensors12010002 - 26 Dec 2023
Viewed by 1559
Abstract
In this research, we demonstrate a wavelength-stable continuous wave (CW) distributed feedback (DFB) quantum cascade laser (QCL) emitting at 7.2 μm using a surface metal grating approach without epitaxial regrowth. The deep metal grating provides an appropriate DFB coupling coefficient and enhanced thermal [...] Read more.
In this research, we demonstrate a wavelength-stable continuous wave (CW) distributed feedback (DFB) quantum cascade laser (QCL) emitting at 7.2 μm using a surface metal grating approach without epitaxial regrowth. The deep metal grating provides an appropriate DFB coupling coefficient and enhanced thermal extraction, resulting in improved lasing performance and the realization of impressive wavelength stability. Quantitatively, the temperature tuning coefficient of the single-mode emission is only 0.54 nm/°C from 20 °C to 70 °C, and the current tuning coefficient of the single-mode emission is 3.2 nm/A from 1.0 A to 1.6 A. A DFB-QCL with a 2 mm cavity length exhibits a low threshold current of 0.6 A and a power of 1.1 W with a slope efficiency of 1 W/A in the CW mode at 300 K. A single-mode operation with a side mode suppression ratio of 33 dB and a single-lobed far-field without beam steering is obtained in the working temperature range of 20–70 °C The improved wavelength stability using a deep surface metal grating approach promises simplified fabrication, which is meaningful for the commercial applications of QCLs. Full article
(This article belongs to the Special Issue Advances in Optoelectronic Materials-Based Sensors and Devices)
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