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Nanomaterials
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Luminescent Nanomaterials: Functional Design, Advantages, and Applications
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Luminescent Nanomaterials: Functional Design, Advantages, and Applications

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanofabrication and Nanomanufacturing".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 9946

Special Issue Editors

Dr. Shihui Wen

E-Mail Website
Guest Editor
Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, Australia
Interests: upconversion nanoparticles; nanophotonics; hybrid nanosystems; biomedical applications; single particle imaging; biodetections; point-of-care diagnostics
Special Issues, Collections and Topics in MDPI journals
Dr. Jiayan Liao

E-Mail Website
Guest Editor
Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
Interests: biophotonics; upconverting nanomaterials; polymer property; surface engineering; single nanoparticle spectroscopy; analytical chemistry
Prof. Dr. Deming Liu

E-Mail Website
Guest Editor
State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences, Changchun, China
Interests: hybrid nanomaterials; upconversion nanoparticles; nanocrystal engineering; nanodevice

Special Issue Information

Dear Colleagues,

With relatively large surface areas and tunable composition and morphology, luminescent nanomaterials possess unexpected optical properties compared with their bulk counterparts. Their unique and advantageous optical properties have advanced a broad range of applications, including fluorescent microscopy, super-resolution nanoscopy imaging, single-particle tracking, nanoscale thermometry, multimodal bioimaging, photodynamic therapy, optogenetics, security labelling, photovoltaic converters, data storage, and 3D displays. Rational design, controlled synthesis, nano-surface engineering, and fine-tuning of their composition, morphology, and surface properties are the fundamental cornerstones in nanoscience and nanotechnology towards the optimized overall performance of a variety of nanoprobes discovered today. The emerging use of newly developed wet-chemical and hybrid approaches provides opportunities to unlock new optical properties as well as emerging applications enabled by these nanomaterials.

This Special Issue will present comprehensive research outlining progress on the functional design, controlled synthesis, and novel applications of luminescence nanomaterials. We invite authors to contribute original research articles and review articles covering the current progress on the recent advances and applications of luminescent nanomaterials. Potential topics include, but are not limited to:

  1. Synthesis, advantages and applications of the colloidal quantum dots.
  2. Novel design and applications of upconversion nanoparticles.
  3. Synthesis and potential of carbon dots.
  4. Advances and applications of luminescent polymer dots.
  5. Functional design and applications of luminescent hybrid nanomaterials.

Dr. Shihui Wen
Dr. Jiayan Liao
Prof. Dr. Deming Liu
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. Nanomaterials is an international peer-reviewed open access semimonthly 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 2900 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

  • controlled synthesis
  • surface engineering
  • quantum dots
  • upconversion nanoparticles
  • carbon dots
  • polymer dots
  • hybrid nanomaterials
  • nanomedicine

Published Papers (7 papers)

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Research

14 pages, 4577 KiB  
Article
Luminescence in Anion-Deficient Hafnia Nanotubes
by Artem O. Shilov, Robert V. Kamalov, Maxim S. Karabanalov, Andrey V. Chukin, Alexander S. Vokhmintsev, Georgy B. Mikhalevsky, Dmitry A. Zamyatin, Ahmed M. A. Henaish and Ilya A. Weinstein
Nanomaterials 2023, 13(24), 3109; https://doi.org/10.3390/nano13243109 - 10 Dec 2023
Viewed by 926
Abstract
Hafnia-based nanostructures and other high-k dielectrics are promising wide-gap materials for developing new opto- and nanoelectronic devices. They possess a unique combination of physical and chemical properties, such as insensitivity to electrical and optical degradation, radiation damage stability, a high specific surface area, [...] Read more.
Hafnia-based nanostructures and other high-k dielectrics are promising wide-gap materials for developing new opto- and nanoelectronic devices. They possess a unique combination of physical and chemical properties, such as insensitivity to electrical and optical degradation, radiation damage stability, a high specific surface area, and an increased concentration of the appropriate active electron-hole centers. The present paper aims to investigate the structural, optical, and luminescent properties of anodized non-stoichiometric HfO2 nanotubes. As-grown amorphous hafnia nanotubes and nanotubes annealed at 700 °C with a monoclinic crystal lattice served as samples. It has been shown that the bandgap Eg for direct allowed transitions amounts to 5.65 ± 0.05 eV for amorphous and 5.51 ± 0.05 eV for monoclinic nanotubes. For the first time, we have studied the features of intrinsic cathodoluminescence and photoluminescence in the obtained nanotubular HfO2 structures with an atomic deficiency in the anion sublattice at temperatures of 10 and 300 K. A broad emission band with a maximum of 2.3–2.4 eV has been revealed. We have also conducted an analysis of the kinetic dependencies of the observed photoluminescence for synthesized HfO2 samples in the millisecond range at room temperature. It showed that there are several types of optically active capture and emission centers based on vacancy states in the O3f and O4f positions with different coordination numbers and a varied number of localized charge carriers (V0, V−, and V2−). The uncovered regularities can be used to optimize the functional characteristics of developed-surface luminescent media based on nanotubular and nanoporous modifications of hafnia. Full article
(This article belongs to the Special Issue Luminescent Nanomaterials: Functional Design, Advantages, and Applications)
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12 pages, 6713 KiB  
Article
Emission Enhancement of Ge/Si Quantum Dots in Hybrid Structures with Subwavelength Lattice of Al Nanodisks
by Vladimir A. Zinovyev, Zhanna V. Smagina, Aigul F. Zinovieva, Aleksei A. Bloshkin, Anatoly V. Dvurechenskii, Ekaterina E. Rodyakina, Margarita V. Stepikhova, Artem V. Peretokin and Alexey V. Novikov
Nanomaterials 2023, 13(17), 2422; https://doi.org/10.3390/nano13172422 - 25 Aug 2023
Cited by 1 | Viewed by 726
Abstract
The effects of resonance interaction of plasmonic and photonic modes in hybrid metal-dielectric structures with square Al nanodisk lattices coupled with a Si waveguide layer were investigated using micro-photoluminescence (micro-PL) spectroscopy. As radiation sources, GeSi quantum dots were embedded in the waveguide. A [...] Read more.
The effects of resonance interaction of plasmonic and photonic modes in hybrid metal-dielectric structures with square Al nanodisk lattices coupled with a Si waveguide layer were investigated using micro-photoluminescence (micro-PL) spectroscopy. As radiation sources, GeSi quantum dots were embedded in the waveguide. A set of narrow PL peaks superimposed on the broad bands were observed in the range of quantum dot emissions. At optimal parameters of Al nanodisks lattices, almost one order increasing of PL intensity was obtained. The experimental PL spectra are in good agreement with results of theoretical calculations. The realization of high-quality bound states in the continuum was confirmed by a comparative analysis of the experimental spectra and theoretical dispersion dependences. The results demonstrated the perspectives of these type structures for a flat band realization and supporting the slow light. Full article
(This article belongs to the Special Issue Luminescent Nanomaterials: Functional Design, Advantages, and Applications)
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11 pages, 4641 KiB  
Article
Boosting the Self-Trapped Exciton Emission in Cs4SnBr6 Zero-Dimensional Perovskite via Rapid Heat Treatment
by Haixia Wu, Zhenxu Lin, Jie Song, Yi Zhang, Yanqing Guo, Wenxing Zhang and Rui Huang
Nanomaterials 2023, 13(15), 2259; https://doi.org/10.3390/nano13152259 - 06 Aug 2023
Cited by 2 | Viewed by 1106
Abstract
Zero-dimensional (0D) tin halide perovskites feature extraordinary properties, such as broadband emission, high photoluminescence quantum yield, and self-absorption-free characteristics. The innovation of synthesis approaches for high-quality 0D tin halide perovskites has facilitated the flourishing development of perovskite-based optoelectronic devices in recent years. However, [...] Read more.
Zero-dimensional (0D) tin halide perovskites feature extraordinary properties, such as broadband emission, high photoluminescence quantum yield, and self-absorption-free characteristics. The innovation of synthesis approaches for high-quality 0D tin halide perovskites has facilitated the flourishing development of perovskite-based optoelectronic devices in recent years. However, discovering an effective strategy to further enhance their emission efficiency remains a considerable challenge. Herein, we report a unique strategy employing rapid heat treatment to attain efficient self-trapped exciton (STE) emission in Cs4SnBr6 zero-dimensional perovskite. Compared to the pristine Cs4SnBr6, rapid thermal treatment (RTT) at 200 °C for a duration of 120 s results in an augmented STE emission with the photoluminescence (PL) quantum yield rising from an initial 50.1% to a substantial 64.7%. Temperature-dependent PL spectra analysis, Raman spectra, and PL decay traces reveal that the PL improvement is attributed to the appropriate electron–phonon coupling as well as the increased binding energies of STEs induced by the RTT. Our findings open up a new avenue for efficient luminescent 0D tin-halide perovskites toward the development of efficient optoelectronic devices based on 0D perovskites. Full article
(This article belongs to the Special Issue Luminescent Nanomaterials: Functional Design, Advantages, and Applications)
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14 pages, 4522 KiB  
Article
Upconversion Nanoparticle-Based Fluorescent Film for Distributed Temperature Monitoring of Mobile Phones’ Integrated Chips
by Hanyang Li, Miao Yu, Jichun Dai, Gaoqian Zhou and Jiapeng Sun
Nanomaterials 2023, 13(11), 1704; https://doi.org/10.3390/nano13111704 - 23 May 2023
Cited by 1 | Viewed by 1352
Abstract
As one of the most critical parameters to evaluate the quality and performance of mobile phones, real-time temperature monitoring of mobile phones’ integrated chips is vital in the electronics industry. Although several different strategies for the measurement of chips’ surface temperature have been [...] Read more.
As one of the most critical parameters to evaluate the quality and performance of mobile phones, real-time temperature monitoring of mobile phones’ integrated chips is vital in the electronics industry. Although several different strategies for the measurement of chips’ surface temperature have been proposed in recent years, distributed temperature monitoring with high spatial resolution is still a hot issue with an urgent need to be solved. In this work, a fluorescent film material with photothermal properties containing thermosensitive upconversion nanoparticles (UCNPs) and polydimethylsiloxane (PDMS) is fabricated for the monitoring of the chips’ surface temperature. The presented fluorescent films have thicknesses ranging from 23 to 90 μm and are both flexible and elastic. Using the fluorescence intensity ratio (FIR) technique, the temperature-sensing properties of these fluorescent films are investigated. The maximum sensitivity of the fluorescent film was measured to be 1.43% K−1 at 299 K. By testing the temperature at different positions of the optical film, distributed temperature monitoring with a high spatial resolution down to 10 μm on the chip surface was successfully achieved. It is worth mentioning that the film maintained stable performance even under pull stretching up to 100%. The correctness of the method is verified by taking infrared images of the chip surface with an infrared camera. These results demonstrate that the as-prepared optical film is a promising anti-deformation material for monitoring temperature with high spatial resolution on-chip surfaces. Full article
(This article belongs to the Special Issue Luminescent Nanomaterials: Functional Design, Advantages, and Applications)
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11 pages, 3377 KiB  
Article
Suppressed Phase Separation of Mixed-Halide Perovskite Quantum Dots Confined in Mesoporous Metal Organic Frameworks
by Duanqi Ma, Yanlin Xu, Qiuying Chen, Huafeng Ding, Xiaoming Tan, Qinfeng Xu and Chuanlu Yang
Nanomaterials 2023, 13(10), 1655; https://doi.org/10.3390/nano13101655 - 16 May 2023
Viewed by 1598
Abstract
Mixed-halide perovskite quantum dots (PeQDs) are the most competitive candidates in designing solar cells and light-emitting devices (LEDs) due to their tunable bandgap and high-efficiency quantum yield. However, phase separation in mixed-halide perovskites under illumination can form rich iodine and bromine regions, which [...] Read more.
Mixed-halide perovskite quantum dots (PeQDs) are the most competitive candidates in designing solar cells and light-emitting devices (LEDs) due to their tunable bandgap and high-efficiency quantum yield. However, phase separation in mixed-halide perovskites under illumination can form rich iodine and bromine regions, which change its optical responses. Herein, we synthesize PeQDs combined with mesoporous zinc-based metal organic framework (MOF) crystals, which can greatly improve the stability of anti-anion exchange, including photo-, thermal, and long-term stabilities under illumination. This unique structure provides a solution for improving the performance of perovskite optoelectronic devices and stabilizing mixed-halide perovskite devices. Full article
(This article belongs to the Special Issue Luminescent Nanomaterials: Functional Design, Advantages, and Applications)
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11 pages, 7222 KiB  
Article
Efficient and Broadband Emission in Dy3+-Doped Glass-Ceramic Fibers for Tunable Yellow Fiber Laser
by Qianyi Chen, Minbo Wu, Puxian Xiong, Yajing Zhao, Shuhang Tian, Yao Xiao, Yongsheng Sun, Dongdan Chen, Shanhui Xu and Zhongmin Yang
Nanomaterials 2023, 13(9), 1558; https://doi.org/10.3390/nano13091558 - 05 May 2023
Cited by 2 | Viewed by 1532
Abstract
Yellow lasers are of great interest in biology, medicine and display technology. However, nonlinear emission of near-infrared lasers at yellow still presents particularly complex optical alignment to date. Here, to the best of our knowledge, we demonstrate the fabrication of a NaLa(WO4 [...] Read more.
Yellow lasers are of great interest in biology, medicine and display technology. However, nonlinear emission of near-infrared lasers at yellow still presents particularly complex optical alignment to date. Here, to the best of our knowledge, we demonstrate the fabrication of a NaLa(WO4)2: Dy3+ glass-ceramic fiber (GCF) for the first time. More importantly, the emission band of the GCF, which is around 575 nm, has a wide full-width half maximum (FWHM) of 18~22 nm, which is remarkably larger than that of the Dy3+-doped YAG crystal (<7 nm). The precursor fiber (PF) was drawn using the molten core drawing (MCD) method. In particular, benefiting from the in situ nanocrystals fabricated in the amorphous fiber core after thermal treatment, the resultant glass-ceramic fiber exhibits a five-times enhancement of luminescence intensity around 575 nm, compared with the precursor fiber, while retaining its broadband emission. Overall, this work is anticipated to offer a high potential GCF with prominent bandwidth for the direct access of a tunable yellow laser. Full article
(This article belongs to the Special Issue Luminescent Nanomaterials: Functional Design, Advantages, and Applications)
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11 pages, 4872 KiB  
Article
Cs(Pb,Mn)Br3 Quantum Dots Glasses with Superior Thermal Stability for Contactless Electroluminescence Green−Emitting LEDs
by Aochen Du, Wenxiao Zhao, Yu Peng, Xinzhi Qin, Zexi Lin, Yun Ye, Enguo Chen, Sheng Xu and Tailiang Guo
Nanomaterials 2023, 13(1), 17; https://doi.org/10.3390/nano13010017 - 20 Dec 2022
Cited by 6 | Viewed by 1523
Abstract
CsPbX3 (X = Cl, Br or I) perovskite quantum dots (PQDs) have gained increasing interest due to their superior performance in photoelectric applications. In our work, a series of Mn2+ doped CsPbBr3 PQDs were successfully prepared in glasses by melt [...] Read more.
CsPbX3 (X = Cl, Br or I) perovskite quantum dots (PQDs) have gained increasing interest due to their superior performance in photoelectric applications. In our work, a series of Mn2+ doped CsPbBr3 PQDs were successfully prepared in glasses by melt quenching and in situ crystallization technique. Due to the 4T1 (4G)→6A1 (6S) transition of Mn2+, a slight red shift from 510 nm to 516 nm was found, with the FWHM expansion from 18 nm to 26 nm. The PQDs@glasses showed excellent thermal stability, and the exciton binding energy reached a high level of 412 meV. The changes of the electronic structure after Mn doping CsPbBr3 can be demonstrated by first principles. Finally, a contactless electroluminescence device with the PQDs@glasses was designed based on the principle of electromagnetic induction, which is a potential application for detecting distance in sterile and dust−free environments. Full article
(This article belongs to the Special Issue Luminescent Nanomaterials: Functional Design, Advantages, and Applications)
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