Article
Chemistry, Multidisciplinary
Sarah M. Thompson, Cuneyt Sahin, Shengsong Yang, Michael E. Flatte, Christopher B. Murray, Lee C. Bassett, Cherie R. Kagan
Summary: Copper-doped zinc sulfide (ZnS:Cu) is a versatile phosphor material that exhibits down-conversion luminescence in various regions of the electromagnetic spectrum. Colloidal nanocrystals (NCs) of ZnS:Cu are of particular interest for quantum information science due to their precise control over size, composition, and surface chemistry. The researchers propose a method for synthesizing ZnS:Cu NCs that primarily emit red light, and they explore the thermodynamic stability and electronic structure of the CuZn-VS complex. The understanding of the emission dynamics and controlled synthesis of CuZn-VS in ZnS NCs will contribute to the development of quantum point defects in this material.
Article
Materials Science, Multidisciplinary
Kaimin Cui, Yuqing Wen, Xiaoyu Han, Zhenbang Hao, Jihong Zhang, Jun Xie
Summary: Suitable incorporation of Zn2+ ions into CsPbBr3 quantum dots enhances luminescence efficiency and chemical stability, as well as modifies the emission bands. This study successfully introduced high content Zn2+ ions into CsPbBr3 quantum dots, resulting in a new intense blue emission and green emission, depending on the ZnBr2/PbBr2 precursor ratio. The analysis confirmed the formation of CsZnxPb1-xBr3 alloyed quantum dots with different Zn alloy compositions.
Review
Chemistry, Physical
Riccardo Marin, Daniel Jaque, Antonio Benayas
Summary: Lanthanide-doped nanoparticles (LNPs) are rapidly advancing in various research fields, but their limited light absorption capabilities due to the Laporte rule present a fundamental obstacle. To address this challenge, promising physicochemical approaches such as plasmonic enhancement, organic-dye sensitization, and coupling with semiconductors have emerged in the past two decades to enhance LNP absorption.
NANOSCALE HORIZONS
(2021)
Article
Physics, Applied
Zahra Sabzevari, Reza Sahraei, Nawzad Nadhim Jawhar, Ahmet Faruk Yazici, Evren Mutlugun, Ehsan Soheyli
Summary: Quaternary Zn-Ag-In-S (ZAIS) quantum dots (QDs) with efficient, tunable, and stable photoluminescence (PL) emission were successfully prepared using a simple, effective, and low-cost synthesis method. Structural analysis showed the significant impact of the quantum confinement effect. By varying the feeding ratio of precursors, tunable emission from green to red was achieved.
JOURNAL OF APPLIED PHYSICS
(2021)
Review
Chemistry, Physical
Joanna Dehnel, Adi Harchol, Yahel Barak, Itay Meir, Faris Horani, Arthur Shapiro, Rotem Strassberg, Celso de Mello Donega, Hilmi Volkan Demir, Daniel R. Gamelin, Kusha Sharma, Efrat Lifshitz
Summary: Incorporating magnetic ions into semiconductor nanocrystals is a promising research field for manipulating spin-related properties. Various host materials and magnetic ions have been studied, and the impact of nanostructure engineering and ion selection in carrier-magnetic ion interactions is emphasized. The use of optically detected magnetic resonance spectroscopy provides valuable insights into the spin dynamics and physical parameters of the carrier-magnetic ion interactions.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Sourov Chandra, Alice Sciortino, Shruti Shandilya, Lincan Fang, Xi Chen, Nonappa, Hua Jiang, Leena-Sisko Johansson, Marco Cannas, Janne Ruokolainen, Robin H. A. Ras, Fabrizio Messina, Bo Peng, Olli Ikkala
Summary: This study presents a new strategy for in situ site-selective Ag-doping at the central core of AuNCs using sulphated colloidal surfaces as templates. This approach greatly improves the photoluminescence quantum efficiency of AuNCs by eliminating nonradiative losses.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ze Yuan, Lanlan Yang, Dongni Han, Guorong Sun, Chenyu Zhu, Yao Wang, Qiao Wang, Mikhail Artemyev, Jianguo Tang
Summary: High-efficiency photoluminescence quaternary hexagon Zn-Cu-In-S (ZCIS) nanoplatelets (NPIs) were successfully synthesized via a two-step cation exchange method, with In2S3 NPIs serving as templates. The reaction temperature of In2S3 and the temperature of Cu addition were found to be crucial for tuning the properties of NPIs. Introducing Zn2+ enhanced the stability and optical properties of the resulting NPIs, demonstrating a new approach to synthesize high-efficiency and nontoxic ZCIS NPIs with no byproducts.
Article
Optics
Shilin Jin, Renfu Li, Hai Huang, Naizhong Jiang, Jidong Lin, Shaoxiong Wang, Yuanhui Zheng, Xueyuan Chen, Daqin Chen
Summary: Impurity doping has been used effectively to enhance the optoelectronic performance of lead-free double perovskite semiconductors, with multidoping of lanthanide ions leading to broadening of the emission spectrum and improved photoluminescence quantum yield. The use of a heterogeneous structure helped avoid adverse energy interactions and achieve high luminescence efficiency and long-term stability, making it promising for nondestructive spectroscopic analyses and multifunctional lighting applications.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Chemistry, Physical
Indy du Fosse, Snigdha Lal, Aydin Najl Hossaini, Ivan Infante, Arjan J. Houtepen
Summary: Using density functional theory, research shows that directly binding ligands to the Cd sites most prone to reduction greatly enhances the stability of electron charged QDs. Furthermore, increasing solvent polarity also improves the stability of QDs charged with electrons.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Engineering, Electrical & Electronic
Minh Hoa Nguyen, Thanh Binh Dinh, Anh Thi Le, Duy Manh Le, Thanh Dam Pham, T. Anh Thu Do, Manh Ha Hoang, Minh Tan Man
Summary: The colloidal CdSexS1-x ternary nanoalloys were synthesized using phosphine-free solvents. By adjusting the chemical composition, the bandgaps of the nanoalloys could be tuned. The influence of lattice strain on the carrier dynamics of the CdSexS1-x nanoalloys was investigated.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Yu Min, Xin Ding, Bing Yu, Youqing Shen, Hailin Cong
Summary: This paper focuses on the application of sodium lanthanide fluoride (NaLnF4) nanoparticles and their derivatives in various biological fields, including the key criteria such as electronic structure, lattice environment, doping strategy, surface functionalization, and basic design principles for biological applications. It also discusses the obstacles encountered in the development process and the research directions and challenges of future new applications.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
S. K. Gupta, B. Modak, P. Modak, Y. Mao
Summary: This research investigates defect emission in undoped and doped Lu2Hf2O7 nanocrystals and demonstrates their potential for radioactive waste immobilization and radiation stability.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Optics
Jiamin Xiong, Sheng Cao, Ke Xing, Mingyan Chen, Ruosheng Zeng, Bingsuo Zou, Jialong Zhao
Summary: This study presents an effective strategy to enhance the photoluminescence quantum yield (PLQY) and stability of blue and violet perovskite nanocrystals (NCs) by incorporating Nd3+ ions. The results show that Nd3+ doping reduces defect states and improves the water stability of the NCs. Further post-treatment with anion exchange reaction leads to an extended emission range and significantly increased maximum PLQY.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Multidisciplinary
Chang Wu, Yan Li, Zhengyao Xia, Cheng Ji, Yuqian Tang, Jinlei Zhang, Chunlan Ma, Ju Gao
Summary: The doping of Fe2+ into CsPb(ClxBr1-x)(3) nanocrystals is found to result in the redshift of absorption edge and photoluminescence (PL). The FWHMs are decreased, PL quantum yields (QYs) are improved, and PL lifetimes are extended, indicating the reduction of defect density by Fe2+ doping. Furthermore, the photostability is significantly improved after the Fe2+ doping. Thus, Fe2+ doping is a very promising approach to modulate the optical properties of mixed halide perovskite NCs.
Article
Chemistry, Physical
Yingjie Zhao, Gongxun Bai, Youqiang Huang, Yuan Liu, Dengfeng Peng, Liang Chen, Shiqing Xu
Summary: This study presents a piezophotonic material with multimode emission capabilities, including mechanoluminescence, optical stress sensing, and resistance to ambient light interference. The material, doped with lanthanide ions, shows potential for advanced optical sensing and anti-counterfeiting applications.
Article
Materials Science, Multidisciplinary
Wojciech M. Piotrowski, Riccardo Marin, Maja Szymczak, Emma Martin Rodriguez, Dirk H. Ortgies, Paloma Rodriguez-Sevilla, Miroslav D. Dramicanin, Daniel Jaque, Lukasz Marciniak
Summary: Lifetime-based luminescence thermometry enables accurate deep-tissue monitoring of temperature changes, but short lifetimes and poor brightness limit its performance. A solution to these limitations is the design and optimization of luminescent nanothermometers co-doped with transition metal and lanthanide ions, which exhibit strong near-infrared emission and long temperature-dependent photoluminescence lifetime. These nanothermometers, combined with a custom-made instrument, allow for obtaining 2D thermal maps for deep-tissue thermal mapping. This study provides foundations for the deployment of lifetime-based thermometry for accurate deep-tissue temperature monitoring.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tamara Munoz-Ortiz, Idoia Alayeto, Jose Lifante, Dirk H. Ortgies, Riccardo Marin, Emma Martin Rodriguez, Maria del Carmen Iglesias de la Cruz, Gines Lifante-Pedrola, Jorge Rubio-Retama, Daniel Jaque
Summary: Nanothermometry utilizes nanoparticles as thermal probes, enabling remote and minimally invasive sensing. It has emerged as a powerful tool in biomedicine. However, the lack of 3D thermal imaging capability and readily available tools in clinic hinders its translation to the bedside.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Khouloud Hamraoui, Vivian Andrea Torres-Vera, Irene Zabala Gutierrez, Alejandro Casillas-Rubio, Mohammed Alqudwa Fattouh, Antonio Benayas, Riccardo Marin, Marta Maria Natile, Miguel Manso Silvan, Juan Rubio-Zuazo, Daniel Jaque, Sonia Melle, Oscar G. Calderoin, Jorge Rubio-Retama
Summary: Rare-earth doped nanoparticles (RENPs) have attracted increasing interest in materials science due to their optical, magnetic, and chemical properties. RENPs can emit and absorb radiation in the second biological window (NIR-II, 1000-1400 nm), making them ideal optical probes for in vivo imaging. The optimization of thermal sensitivity in RENPs depends on the core chemical composition and size, active-shell, and outer-inert-shell thicknesses.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Liyan Ming, Irene Zabala-Gutierrez, Paloma Rodriguez-Sevilla, Jorge Rubio Retama, Daniel Jaque, Riccardo Marin, Erving Ximendes
Summary: This article introduces a luminescence lifetime estimation method based on U-NET to improve the estimation accuracy under extremely low signal-to-noise ratio conditions. The effectiveness of U-NET is demonstrated in luminescence lifetime thermometry and its sensing performance improvement is verified through two experiments under extreme measurement conditions.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Carlos D. S. Brites, Riccardo Marin, Markus Suta, Albano N. Carneiro Neto, Erving Ximendes, Daniel Jaque, Luis D. Carlos
Summary: Luminescence (nano)thermometry is a remote sensing technique that utilizes the temperature dependency of luminescence features to measure temperature. It has potential applications in various fields and requires the establishment of a theoretical background, standardized practices, and improved readouts through multiparametric analysis and artificial intelligence algorithms. Challenges in luminescence thermometry and the need for continuous innovation are also discussed.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Liyan Ming, Irene Zabala-Gutierrez, Oscar G. Calderon, Sonia Melle, Erving Ximendes, Jorge Rubio-Retama, Riccardo Marin
Summary: Silver chalcogenide semiconductor nanocrystals (Ag2E SNCs) play an important role in the biomedical field due to their near-infrared excitation and low cytotoxicity. However, their low photoluminescence quantum yield poses a challenge for bioimaging and biosensing applications. This article provides an overview of strategies to improve the brightness of Ag2E SNCs by addressing defects, metallic silver, and composition issues. Future research directions to further enhance the brightness and effectiveness of Ag2E SNCs in biomedical applications are also discussed.
Article
Chemistry, Multidisciplinary
Ana C. C. Soares, Tasso O. Sales, Erving C. Ximendes, Daniel Jaque, Carlos Jacinto
Summary: In recent years, there has been significant interest in infrared emitting luminescent nanothermometers due to their potential for new diagnosis and therapy procedures. However, concerns have been raised regarding their reliability, as tissues can induce spectral distortions even in the commonly used second biological window. In this study, the effectiveness of shifting the operation range of these nanothermometers to the third biological window is demonstrated, showing minimal distortion by tissue and opening the path to reliable luminescence thermometry. Advanced analysis of emission spectra allows for sub-degree thermal uncertainties.
NANOSCALE ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
W. M. Piotrowski, R. Marin, M. Szymczak, E. Martin Rodriguez, D. H. Ortgies, P. Rodriguez-Sevilla, P. Bolek, M. D. Dramicanin, D. Jaque, L. Marciniak
Summary: Near-infrared (NIR) luminescence thermometry is a reliable method for remote thermal sensing and imaging. Lanthanide (Ln(3+))-based nanophosphors are commonly used as NIR nanothermometers, but the combination of Ln(3+) with transition metal (TM) ions can enhance the sensitivity of the thermometric approach. However, there are few examples of luminescence nanothermometers combining both TM and Ln(3+), leaving room for further exploration of these systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Wojciech M. Piotrowski, Maja Szymczak, Emma Martin Rodriguez, Riccardo Marin, Marta Henklewska, Blazej Pozniak, Miroslav Dramicanin, Lukasz Marciniak
Summary: The increasing popularity of luminescent nanothermometry in recent years is due to its potential application in biomedicine. This study introduces a biocompatible bimodal luminescent thermometer that operates in ratiometric and luminescence lifetime modes, offering high sensitivity and low cytotoxicity, making it suitable for bioapplications.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Walaa Mohammad, K. David Wegner, Clothilde Comby-Zerbino, Vanessa Trouillet, Marina Paris Ogayar, Jean-luc Coll, Riccardo Marin, Daniel Jaque Garcia, Ute Resch-Genger, Rodolphe Antoine, Xavier Le Guevel
Summary: In this study, ultra-small gold nanoparticles stabilized by co-ligands were synthesized, and their physicochemical properties were controlled by the amount of reducing agent used. The absorption cross-section was significantly increased by precisely controlling the reducing agent, which in turn influenced the photoluminescence quantum yield. The results suggest that the physicochemical properties of the ligand shell can be tuned to control the near-infrared absorption and photoluminescence of the gold nanoparticles.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Marina Paris Ogayar, Diego Mendez-Gonzalez, Irene Zabala Gutierrez, Alvaro Artiga, Jorge Rubio-Retama, Oscar G. Calderon, Sonia Melle, Aida Serrano, Ana Espinosa, Daniel Jaque, Riccardo Marin
Summary: Luminescence nanothermometry is a technique that uses luminescence signals from nanosized materials to remotely and minimally invasively measure temperature. However, in a biomedical context, the reliability of temperature measurement is compromised by bias caused by environmental conditions. This study reveals an unexpected source of bias induced by metal ions, which enhances the emission of Ag2S nanothermometers. These findings highlight the need for caution when using luminescence nanothermometry in complex biological environments.