Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.2
3.0
Journals
Micromachines
Special Issues
Emerging Nanomaterials and Novel Structures for Photodetectors and Their Applications
share announcement

Emerging Nanomaterials and Novel Structures for Photodetectors and Their Applications

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "D：Materials and Processing".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 700

Special Issue Editor

Dr. Zhanfeng Huang

E-Mail Website
Guest Editor
School of Microelectronics Science and Technology, Sun Yat-sen University Zhuhai Campus, Zhuhai 519082, China
Interests: optoelectronic devices; nanomaterials; photodetectors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Photodetectors have the ability to detect and transform light signals with diverse wavelengths, intensities, and polarization into electrical signals, which play an irreplaceable role in collecting information. In the era of “the Internet of Things”, the demand for photodetectors is escalating for some new application scenarios such as high-speed communication, advanced imaging technology, and high-precision sensing. To meet the growing demand for higher figure-of-merit parameters, much effort has been spent to improve the performance of photodetectors by developing new materials, designing novel device structures, applying new device physics, and exploring innovative applications. Accordingly, this Special Issue seeks to showcase research papers, short communications, and review articles that focus on the following:

(1) Emerging Optoelectronic Materials: including but not limited to the methodology of synthesizing and characterizing novel materials, such as perovskites, polymers, novel two-dimensional materials, and quantum dots.

(2) Novel Device Structure and Physics: including but not limit to designing novel structures, revealing novel operating principles, and applying new physics to improve the figure-of-merit parameters of photodetectors.

(3) Innovative Application: including but not limit to the demonstration of burgeoning applications of photodetectors in the field of fundamental science, communication, and imaging.

We are especially interested in manuscripts that present innovative uses of photodetectors for the monitoring of human health or marine environment.

We look forward to receiving your submissions!

Dr. Zhanfeng Huang
Guest Editor

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. Micromachines 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 2100 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

  • photodetectors
  • optoelectronic sensors
  • optoelectronic materials
  • photodetector design and integration
  • perovskite photodetector
  • organic photodetector, imaging technology
  • human health monitoring
  • marine environmental monitoring

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

20 pages, 6264 KiB  
Article
A Study on the Impact of Vanadium Doping on the Structural, Optical, and Optoelectrical Properties of ZnS Thin Films for Optoelectronic Applications
by H. Y. S. Al-Zahrani, I. M. El Radaf and A. Lahmar
Micromachines 2025, 16(3), 337; https://doi.org/10.3390/mi16030337 - 14 Mar 2025
Viewed by 472
Abstract
This study details the manufacture of vanadium-doped ZnS thin films via a cost-effective spray pyrolysis technique at varying concentrations of vanadium (4, 8, and 12 wt.%). The XRD data demonstrate the hexagonal structure of the vanadium-doped ZnS layers. The analysis of their structural [...] Read more.
This study details the manufacture of vanadium-doped ZnS thin films via a cost-effective spray pyrolysis technique at varying concentrations of vanadium (4, 8, and 12 wt.%). The XRD data demonstrate the hexagonal structure of the vanadium-doped ZnS layers. The analysis of their structural properties indicates that the crystallite size (D) of the vanadium-doped ZnS films decreased as the vanadium concentration rose. The strain and dislocation density of the analyzed films were enhanced by increasing the vanadium content from 4 to 12 wt.%. The linear optical results of the vanadium-doped ZnS films revealed that the refractive index values were improved from 2.31 to 3.49 by increasing the vanadium concentration in the analyzed samples. Further, the rise in vanadium content enhanced the absorption coefficient. The energy gap (Eg) study indicates that the vanadium-doped ZnS films exhibited direct optical transitions, with the Eg values diminishing from 3.74 to 3.15 eV as the vanadium concentration increased. The optoelectrical analysis shows that the rise in vanadium concentration increases the dispersion energy from 9.48 to 12.76 eV and reduces the oscillator energy from 3.69 to 2.17 eV. The optical carrier concentration of these layers was improved from 1.49 × 1053 to 2.15 × 1053, while the plasma frequency was decreased from 4.34 × 1013 to 3.67 × 1013 by boosting the vanadium concentration from 4 to 12 wt.%. Simultaneously, the increase in vanadium content improves the nonlinear optical parameters of the vanadium-doped ZnS films. The hot probe method identifies these samples as n-type semiconductors. The findings suggest that these samples serve as an innovative window layer. Full article
(This article belongs to the Special Issue Emerging Nanomaterials and Novel Structures for Photodetectors and Their Applications)
►▼ Show Figures

Figure 1

Review

Jump to: Research

28 pages, 1518 KiB  
Review
Hybrid Energy Harvesting Applications of ZnO Nanorods for Future Implantable and Wearable Devices
by Kathalingam Adaikalam and Hyun-Seok Kim
Micromachines 2025, 16(6), 605; https://doi.org/10.3390/mi16060605 - 22 May 2025
Abstract
The currently used electrical energy devices for portable applications are in limited life and need of frequent recharging, it is a big bottleneck for wireless and transportation systems. The scientific community is motivated to find innovative and efficient devices to convert environmental energy [...] Read more.
The currently used electrical energy devices for portable applications are in limited life and need of frequent recharging, it is a big bottleneck for wireless and transportation systems. The scientific community is motivated to find innovative and efficient devices to convert environmental energy into useful forms. Nanogenerator can mitigate this issue by harvesting ambient energy of different forms into useful electrical energy. Particularly flexible nanogenerators can efficiently convert ambient mechanical energy into electrical energy which can be fruitfully used for self-powered sensors and electronic appliances. Zinc oxide is an interesting photosensitive and piezoelectric material that is expected to play a vital role in the synergetic harvesting of environmental thermal, sound, mechanical, and solar energies. As ZnO can be synthesized using easy methods and materials at low cost, the conversion efficiencies of solar and other energy forms can increase considerably. ZnO is a versatile material with interesting semiconducting, optical, and piezoelectric properties; it can be used advantageously to harvest more than one type of ambient energy. The coupled semiconducting and piezoelectric properties of ZnO are attractive for fabricating nanogenerators capable of harvesting both ambient optical and mechanical energies simultaneously. These nanolevel conversion devices are much required to power remote and implantable devices without the need for additional power sources. The present review briefly discusses the principles and mechanisms of different energy harvesting abilities of ZnO nanorods and their composites by consolidating available literature. In addition, the developments taking place in nanogenerators of different kinds—such as photovoltaic, piezoelectric, pyroelectric, and triboelectrics for self-powered technology—and their progress in hybrid energy harvesting application is reviewed. Full article
(This article belongs to the Special Issue Emerging Nanomaterials and Novel Structures for Photodetectors and Their Applications)
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop