Research Progress of Optoelectronic Devices Based on Nanotechnology

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 527

Special Issue Editor


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Guest Editor
1. Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610065, China
2. Faculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
Interests: quantum dots; solar cell; carrier dynamics; perovskite solar cell; photodetector; LED
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Special Issue Information

Dear Colleagues,

Optoelectronic devices, including solar cells, light-emitting diodes (LEDs), and photodetectors, are fundamental components of modern technology, enabling applications ranging from renewable energy harvesting and energy-efficient lighting to advanced sensing and imaging. While significant progress has been made, challenges related to efficiency, stability, and cost-effective fabrication remain. Nanomaterials, with their unique dimension-dependent physical and optoelectronic properties, offer transformative opportunities to overcome these bottlenecks. They enable tunable bandgaps, enhanced light-matter interaction, and efficient charge carrier manipulation, paving the way for next-generation high-performance devices.

This Special Issue aims to provide a comprehensive overview of the recent progress in optoelectronic devices based on nanomaterials. It covers a wide range of nanomaterials, such as quantum dots, perovskites, metal nanoparticles, nanowires, 2D materials (e.g., graphene and TMDCs), and organic nanostructures. The scope encompasses various device applications, including, but not limited to, photovoltaics (including silicon, thin-film, perovskite, and organic photovoltaics), LEDs (QLEDs and PeLEDs), and photodetectors. We are particularly interested in topics concerning material synthesis, film fabrication, device architecture engineering, carrier dynamics, interface optimization, and stability improvement.

For this Special Issue, we welcome original research articles, review articles, and perspective articles that report the latest advances in the field of nanomaterial-based optoelectronics. We encourage interdisciplinary research that bridges materials science, physics, chemistry, and engineering to inspire new ideas and innovations in developing efficient, stable, and scalable optoelectronic devices.

Dr. Chao Ding
Guest Editor

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Keywords

  • nanomaterials
  • nanostructure
  • optoelectronics
  • solar cells
  • light-emitting diodes (LEDs)
  • photodetectors
  • carrier dynamics
  • electroluminescence
  • light harvesting
  • interface engineering

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Published Papers (1 paper)

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Research

19 pages, 2402 KB  
Article
Electrical, Optical, and Anti-Microbial Behavior of Copper Nitrates-Doped Chitosan
by Ahmed A. Bhran, Abdelrahman G. Gadallah, Emad M. Ahmed, Azhar M. Elwan, Mohammed A. Farag and Mohamed M. M. Elnasharty
Nanomaterials 2026, 16(10), 601; https://doi.org/10.3390/nano16100601 - 14 May 2026
Viewed by 328
Abstract
Chitosan-based copper composites have attracted considerable interest for biomedical and antimicrobial uses due to their biocompatibility, adjustable dielectric characteristics, and ion-mediated antimicrobial effectiveness. In this study, chitosan films doped with Cu(NO3)2, containing 3, 6, and 9 wt% of copper [...] Read more.
Chitosan-based copper composites have attracted considerable interest for biomedical and antimicrobial uses due to their biocompatibility, adjustable dielectric characteristics, and ion-mediated antimicrobial effectiveness. In this study, chitosan films doped with Cu(NO3)2, containing 3, 6, and 9 wt% of copper nitrate were produced using a solution-casting method at room temperature. This was done to explore the relationship between structural interactions, dielectric relaxation, optical properties, and antimicrobial efficacy. The resulting composite has been investigated physically using FTIR, XRD, optical analysis, and dielectric spectroscopy, and biologically for its antimicrobial activity. FTIR revealed the molecular structure of Cs-Cu(NO3)2 and changes resulting from new bond(s) formation and/or decomposition. XRD indicated that there are no peaks assigned for CuO, which weakens the composite antimicrobial activity. Optical analysis showed an increase in the band gap with copper (II) nitrate concentration over 3%. Additionally, the electrical impedance of the resulting composite increased by approximately one decade. A detailed electrical analysis of the charge-carrier types is provided. Moreover, the antimicrobial activity of chitosan is slightly enhanced by the additive copper (II) nitrate in a dose-dependent manner. The current research offers a mechanistic understanding of the structure–property relationships that govern the behavior of Cu(NO3)2–chitosan composites, emphasizing the significant influence of processing conditions on adapting of their dielectric and biological properties. Full article
(This article belongs to the Special Issue Research Progress of Optoelectronic Devices Based on Nanotechnology)
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