Article
Multidisciplinary Sciences
Sangyeon Cho, Yi Yang, Marin Soljacic, Seok Hyun Yun
Summary: This study demonstrates submicrometer-sized plasmonic lasers using CsPbBr3 crystals on gold substrates, highlighting the importance of enhanced optical gain, spontaneous emission factor, and high group index for efficient plasmonic lasing.
Article
Nanoscience & Nanotechnology
Marco van der Laan, Chris de Weerd, Lucas Poirier, Oscar van de Water, Deepika Poonia, Leyre Gomez, Sachin Kinge, Laurens D. A. Siebbeles, A. Femius Koenderink, Tom Gregorkiewicz, Peter Schall
Summary: The study provides evidence of photon recycling in CsPbBr3 nanocrystal suspensions, showing red shifts, decreased PL quantum yield, and prolonged PL decay and rise times as indicators of repeated, energy-directed radiative transfer between nanocrystals. Industrial perovskite nanocrystals applications may benefit from a better understanding of photon recycling implications.
Review
Materials Science, Multidisciplinary
Anirban Dutta, Mukesh Kumar Vyas, Koushik Bhowmik, Jyotiranjan Ota, Samik Kumar Hait, Kannan Chandrasekaran, Deepak Saxena, S. S. Ramakumar
Summary: Perovskite nanocrystal materials have outstanding optoelectronic properties, but suffer from phase instability and high sensitivity to external parameters. Understanding the chemistry behind their transformation is crucial for synthesis, processing, and device fabrication.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Physical
Maarten L. S. van der Geest, Jeroen J. de Boer, Kevin Murzyn, Peter Juergens, Bruno Ehrler, Peter M. Kraus
Summary: In this study, time-resolved solid-state high-harmonic spectroscopy was used to investigate carrier dynamics in methylammonium lead bromide thin films. The comparison with transient absorption revealed the relationship between carrier dynamics and generated harmonics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Materials Science, Ceramics
Jiamian Wang, Qingrong Chen, Caixia Xu, Yuehan Cao, Tianwei Song, Ting Li, Xiaohui Xu, Ping Chen, Long Xu
Summary: In this study, low-threshold green and red random lasing actions were investigated in inorganic caesium lead bromide and caesium lead iodide perovskite microcrystals. The use of interferential patterned sapphire substrates and novel metal nanoparticles enhanced the lasing emission intensity and reduced the lasing emission thresholds. The multi-scattering of light and plasmonic enhancement were important in reducing the threshold and contributing to low threshold random lasing emission, as confirmed by experimental and simulation results using the FDTD method.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Marianna D'Amato, Lucien Belzane, Corentin Dabard, Mathieu Silly, Gilles Patriarche, Quentin Glorieux, Hanna Le Jeannic, Emmanuel Lhuillier, Alberto Bramati
Summary: In this study, we fabricated and characterized Zn-treated CsPbBr3 colloidal NCs through Zn2+ ion doping, demonstrating improved stability and high single-photon purity. This opens up interesting prospects for their use in quantum technology applications.
Article
Chemistry, Physical
Kernius Vilkevicius, Algirdas Selskis, Evaldas Stankevicius
Summary: This study investigates the formation of gold nanostructures (nanobumps, nanocones, and nanojets) on the surface of metal using laser direct writing technique with different laser wavelengths. Experimental results show that shorter wavelength lasers provide a more precise and efficient fabrication process for controlling the properties of the nanostructures, making them highly suitable for practical applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Quinten A. Akkerman, Tan P. T. Nguyen, Simon C. Boehme, Federico Montanarella, Dmitry N. Dirin, Philipp Wechsler, Finn Beiglbock, Gabriele Raino, Rolf Erni, Claudine Katan, Jacky Even, Maksym V. Kovalenko
Summary: In this study, the authors report a room-temperature synthesis method for monodisperse, isolable, spheroidal APbBr3 QDs. By controlling the equilibrium between the precursor and the solute, as well as the kinetics of nucleation and growth, size tunable QDs were obtained.
Review
Chemistry, Multidisciplinary
Yufeng Li, Changyu Yang, Weisi Guo, Tianwei Duan, Zhongmin Zhou, Yuanyuan Zhou
Summary: The superior tolerance of all-inorganic perovskites compared to their hybrid counterparts makes them promising candidates for solar cells. In recent years, significant improvements have been achieved in certified power conversion efficiencies of all-inorganic perovskite solar cells (PSCs), highlighting their potential for practical applications. Group IVA elements, including Pb, Sn, and Ge, have been extensively studied for perovskites, and their incorporation into all-inorganic perovskite structures provides opportunities for stabilizing the photoactive phase and tailoring the bandgap structure. This review analyzes the design principles, discusses the progress in PSCs with mixed group IVA cations, and provides perspectives on future research efforts for high-performance Pb-less and Pb-free all-inorganic PSCs.
Article
Chemistry, Physical
Yuetian Chen, Ning Wei, Yanfeng Miao, Haoran Chen, Meng Ren, Xiaomin Liu, Yixin Zhao
Summary: Bulk lead halide perovskite films with unique properties can be processed using low-cost methods. Solution-processed colloidal inorganic perovskite nanocrystals show potential for better stability and optoelectronic properties. In this study, CsPbBr3 nanocrystals are used to modify FAPbI(3) perovskite films, leading to improved stability and charge carrier dynamics.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Xian Wang, Dayujia Huo, Xin Wang, Minjie Li, Yong Wang, Yan Wan
Summary: The photophysical properties of surface passivated CsPbI3 perovskite were investigated using transient absorption spectroscopy. The results showed that surface passivation slowed down carrier trapping and accelerated bimolecular recombination, leading to improved carrier transport and longer hot carrier lifetime. Defect passivation was found beneficial for enhancing defect tolerance and slowing down hot carrier cooling in developing high-performance photovoltaics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Physical
Xin Lv, Gaoyu Chen, Xia Zhu, Jiakun An, Jianchun Bao, Xiangxing Xu
Summary: In this work, the ternary halide perovskite phase diagram is constructed by the strategy of halide anion exchange between perovskite NCs. A two-phase perovskite NC system showing stable dual photoluminescence (PL) peaks is achieved.
Article
Chemistry, Physical
Xin Lv, Gaoyu Chen, Xia Zhu, Jiakun An, Jianchun Bao, Xiangxing Xu
Summary: The ternary halide perovskite phase diagram is constructed by the strategy of halide anion exchange between perovskite NCs, providing a method for regulating the composition and proportion of CsPbClaBrbI3-a-b. A stable two-phase perovskite NC system showing dual photoluminescence peaks has been achieved.
Article
Chemistry, Physical
Shiyu Zhao, Jian Wu, Xiaochun Chi, Ning Sui, Zhihui Kang, Qiang Zhou, Han-zhuang Zhang, Bing Zhao, Yinghui Wang
Summary: The investigation of CsPbBr3 nanorods and cubic CsPbBr3 nanocrystals reveals the anisotropic properties of CsPbBr3 nanorods, with their photoluminescence intensity and radiative lifetime being sensitive to the polarization direction. Additionally, CsPbBr3 nanorods display two-photon fluorescence. These findings provide comprehensive insights into the optoelectronic properties of inorganic halide perovskite nanomaterials.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Energy & Fuels
Roser Fernandez-Climent, Andres F. Gualdron-Reyes, Miguel Garcia-Tecedor, Camilo A. Mesa, Drialys Cardenas-Morcoso, Laura Montanes, Eva M. Barea, Elena Mas-Marza, Beatriz Julian-Lopez, Ivan Mora-Sero, Sixto Gimenez
Summary: This study demonstrates the tailored photoelectrochemical behavior of CsPbBr3 NC films and their activation of benzyl alcohol oxidation and reduction reactions. The results highlight the potential of halide perovskite NCs for photoelectrocatalytic applications, emphasizing the need for stabilization strategies to advance technological developments.
Article
Materials Science, Multidisciplinary
Yanbin Wang, Xinyou Huang, Ziqiu Cheng, Penghui Chen, Yuyang Chen, Junhao Ye, Haohong Chen, Zhenzhen Zhou, Denis Yu Kosyanov, Jiang Li
Summary: Uniform Al2O3-Ce:LuAG composite phosphor ceramics (CPCs) with excellent luminescent properties and thermal stability have been successfully synthesized in this study, showing great potential for application in solid-state laser lighting.
Article
Materials Science, Multidisciplinary
Syed Muhammad Ali Zaidi, Mazhar Ali Kalyar, Zulfiqar Ali Raza, Aayesha Shoukat, Rubaila Waseem, Muhammad Aslam
Summary: Polyvinyl alcohol (PVA) nanocomposite strips embedded with graphene nanosheets and copper-ferrite nanoparticles were synthesized using solution casting technique. Laser pulse irradiations were then applied to modify the structural, optical, and electrical properties of the strips, showing potential for optoelectronic devices.
Article
Materials Science, Multidisciplinary
Yunru Chen, Jialing Wu, Jiajia Wang, Shihui Ma, Hongwei Yu
Summary: This paper investigates the angular non-critical phase-matching second-harmonic-generation properties of Ba3(ZnB5O10)PO4 crystal and explores its potential applications in the output spectral regions.
Article
Materials Science, Multidisciplinary
Qun Jing, Menglin Zhu, Lu Li, Xu Ji, Haiming Duan, Henglei Chen, Ming-Hsien Lee
Summary: The paper introduces two new nonlinear optical materials, MZnPO4 (M = Rb, Cs), synthesized by cation substitution. These materials exhibit a honeycomb-like structure and show mild SHG responses with short absorption edges. The thermal properties, IR spectra, and theoretical calculations of the materials are also discussed.
Article
Materials Science, Multidisciplinary
Camila Ianhez-Pereira, Akhil Kuriakose, Ariano De Giovanni Rodrigues, Ana Luiza Costa Silva, Ottavia Jedrkiewicz, Monica Bollani, Marcio Peron Franco de Godoy
Summary: This study aims to evaluate the crystalline changes induced by ultrafast laser micromachining on manganese oxide thin films using micro-Raman spectroscopy. The results show that laser-writing is effective in locally modifying low-crystallinity films and increasing crystallite sizes, highlighting an interesting approach to evaluate laser-induced structural modifications on metal oxide thin films.
Article
Materials Science, Multidisciplinary
Kamal Bansal, Neeraj Kumar Mishra, Ibrahim Abdullahi, Param Jeet Singh, Mohit Tyagi, Sukhpal Singh
Summary: A novel Sm3+ activated oxyfluoride glass was synthesized and its structure and properties were analyzed. The glass showed potential applications in lasers, optical temperature sensing, and high-energy scintillators.
Article
Materials Science, Multidisciplinary
Xingjian Wang, Zhixu Wu, Jiawei Zhu, Yubin Kang, Mengqiang Cai, Yong Xia, Hui Deng
Summary: Antimony sulfide (Sb2S3) has been investigated as a promising material for visible light photodetectors due to its non-toxicity, stability, and high absorption coefficient. In this study, we systematically explored the impact of key parameters on the performance of Sb2S3 devices using simulation and successfully fabricated self-powered photodetectors with high responsivity and specific detectivity. Furthermore, we demonstrated the application of the Sb2S3 detector in a scanning imaging system, showcasing its potential for developing new types of visible light detectors and imaging systems.
Article
Materials Science, Multidisciplinary
O. I. Sallam, R. M. Ahmed
Summary: The 20NaF-60P2O5-20Na2O fluorophosphate glass systems doped with 3 wt% of CoO and NiO were investigated for their optical parameters before and after gamma irradiation. The presence of defects within the glass network and the addition of transition metals were found to affect the properties of the composites. After irradiation, a red shift was observed in the dissipation factor spectrum. The energy lost at the surface of the composites was larger than the energy lost within the constituent materials. All investigated composites showed insulating behavior and exhibited increased nonlinear optical parameters after irradiation, with the CoO-doped composite showing the highest values.
Article
Materials Science, Multidisciplinary
Fahimeh Ahmadi, Zeinab Ebrahimpour, Asghar Asgari, Bao Van
Summary: In this study, Er3+-doped sulfophosphate glasses containing titanium nanoparticles (TiO2 NPs) and different concentrations of silver nanoparticles (AgNPs) were synthesized. The impact of AgNPs on the physical and structural characteristics, optical absorption and emission features, and photocatalytic activity of the glasses were investigated. The results showed that the addition of AgNPs enhanced the emission intensity of the glasses, with the system containing 0.04 mol% of AgNPs exhibiting optimal performance. Furthermore, the presence of AgNPs and TiO2 NPs in the glass matrix positively affected the photocatalytic performance.
Article
Materials Science, Multidisciplinary
Zhuang Li, Rongfei Huang, Wei Yuan, Shaoqiang Zheng, Wenlu Liao, Huiying Xu, Zhiping Cai
Summary: This study reports the first realization of an 868 nm Pr:YLF laser pumped by an InGaN blue laser diode. The laser achieved a maximum power of 641 mW with stable output and good beam quality. The experimental results were in agreement with theoretical simulations.
Article
Materials Science, Multidisciplinary
Bhishma Karki, Youssef Trabelsi, Amrindra Pal, Sofyan A. Taya, Ram Bharos Yadav
Summary: This study proposes an SF11 Prism- Ag- ZnO nanowires-CeO2-Sensing layer-based surface plasmon resonance sensor for measuring dopamine concentration in human blood. The sensor demonstrates high sensitivity and detection accuracy, and holds significant importance for early diagnosis of neurological diseases.
Article
Materials Science, Multidisciplinary
M. Taoufiq, A. Soussi, A. Elfanaoui, A. Ait Hssi, S. Baoubih, A. Ihlal, K. Bouabid
Summary: In this study, the effect of copper doping within ZnS on glass substrates was investigated through experimental and theoretical approaches. Pure ZnS and Cu-doped ZnS films with varying copper concentrations were deposited on glass substrates using the SILAR technique. The structural, morphological, and optical properties of the films were characterized, and the theoretical FP-LAPW method based on density functional theory was employed to study the properties of copper-doped ZnS.