Article
Physics, Applied
Jingyang Hu, Long Gao, Wentong Li, Meng Wang, Tuo Cheng, Zhe Li, Xiaoyu Zhang, Yinghui Wang, Jiaqi Zhang
Summary: Organic-inorganic metal halide perovskites have attracted attention in resistive switching memories, but their long-term stability and lead toxicity are obstacles. Here, a lead-free CsCu2Br3 perovskite is proposed as a solution for these issues. The CsCu2Br3-based resistive switching devices exhibit desirable and stable performance, even when exposed to air for months.
APPLIED PHYSICS LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Subham Paramanik, Abhishek Maiti, Soumyo Chatterjee, Amlan J. Pal
Summary: This study demonstrates the potential of lead-free and layered inorganic halide perovskite Cs3Sb2I9 in designing efficient ReRAM and artificial synaptic devices, showing excellent performance and environmental stability. The material exhibits a high on/off ratio in resistive-switching devices and features intrinsic electronic-ionic coupling and strong light-matter interaction, promising for the realization of phototunable memories and artificial synaptic devices with concurrent processing and learning capabilities.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Zehan Liu, Pengpeng Cheng, Yongfei Li, Ruyan Kang, Ziqi Zhang, Zhiyuan Zuo, Jia Zhao
Summary: This study successfully achieved mixed halide CsPbBrxI3-x-based memristors with excellent performance at different temperatures, demonstrating repeatability and stability in high-temperature environments. The results suggest that this novel type of memory devices has potential for application in perovskite wearable and large-scale information devices in high-temperature scenarios.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Yichu Zheng, Dongfang Yu, Huijun Lian, Haiyang Yuan, Yu Zhou, Shuang Yang
Summary: In this study, it is found that organic-inorganic halide perovskite exhibits fast ion transport within the grain boundaries of two-dimensional films, which can be controlled by the structure of the perovskite. This discovery enables the fabrication of electroforming-free resistive random access memory (RRAM) devices with low set voltage and small variations. It also has potential applications in electronic and photonic circuits.
SCIENCE CHINA-MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Zehen Liu, Hao Tang, Pengpeng Cheng, Ruyan Kang, Jian Zhou, Xian Zhao, Jia Zhao, Zhiyuan Zuo
Summary: This research reports the improved resistive switching performance of lead-free MASnI(3) perovskites by introducing PEACl, achieving stable and reliable performance. Additionally, a complete physical simulation model is proposed to describe the formation and rupture of conductive filaments, providing a theoretical basis for further performance optimization.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zehen Liu, Pengpeng Cheng, Ruyan Kang, Jian Zhou, Xian Zhao, Jia Zhao, Zhiyuan Zuo
Summary: The rapid development of AI has led to the exploration of neuromorphic computing systems. This research focuses on artificial neuromorphic synapses based on memristors of organic-inorganic halide perovskites. The study proposes a model for resistive switching and discovers that the unique photoresponsive characteristic enhances the performance of memristors. These findings contribute to the development of multifunctional optoelectronics and optogenetics tunable neuromorphic systems.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Lidia Romani, Andrea Speltini, Francesco Ambrosio, Edoardo Mosconi, Antonella Profumo, Marcello Marelli, Serena Margadonna, Antonella Milella, Francesco Fracassi, Andrea Listorti, Filippo De Angelis, Lorenzo Malavasi
Summary: This study presents a water-stable metal halide perovskite and demonstrates its application in promoting photocatalysis in aqueous medium, leading to impressive hydrogen evolution rate. The composite with g-C3N4 shows synergistic activity and efficient photocatalytic performance in water, paving the way for a new class of light-driven catalysts.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Electrical & Electronic
Xiaoyu Wang, Nasir Ali, Gang Bi, Huizhen Wu
Summary: This study fabricates lead-free double perovskite Cs2BiAgBr6 film and utilizes it in a resistive switching memory device. The experimental and theoretical analyses demonstrate excellent resistive switching performances of the prepared device. High-quality Cs2BiAgBr6 film is fabricated through post-vacuum treatment and shows bipolar resistive switching behavior in the memory device.
SEMICONDUCTOR SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Zehan Liu, Pengpeng Cheng, Yongfei Li, Ruyan Kang, Jian Zhou, Jia Zhao, Zhiyuan Zuo
Summary: This study proposes a novel organic-inorganic hybrid memristor with low operation voltage, high ON/OFF ratio, stable endurance, long retention, and robustness under ambient condition. Four distinct resistance states can be obtained in these memristors by modifying the operation voltages, and the resistance switching processes can be controlled by both electrical field and light illumination.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Xiaomin Liu, Shuxia Ren, Zhenhua Li, Jiajun Guo, Shenghui Yi, Zheng Yang, Weizhong Hao, Rui Li, Jinjin Zhao
Summary: The introduction of CsPbBr3 quantum dots mixed in graphene oxide for flexible transparent RRAM devices shows a high ON/OFF ratio under illumination, with little impact on resistances from bending or load-cycling. This innovative resistive memory technology opens up possibilities for the development of photoelectrical dual-controlled flexible RRAM devices.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Seongha Lee, Sarah Wolfe, Jorge Torres, Minhee Yun, Jung-Kun Lee
Summary: This study illustrates the significant impact of the interface between CH3NH3PbI3 and TiO2 on the formation and rupture of defect chains, leading to the asymmetric bipolar resistive switching observed in the Au/CH3NH3PbI3/TiO2/FTO device. The findings demonstrate the formation of a Schottky barrier at the CH3NH3PbI3-TiO2 interface, resulting in a much larger resistance in the high resistance state.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Zehan Liu, Pengpeng Cheng, Ruyan Kang, Jian Zhou, Xiaoshan Wang, Xian Zhao, Jia Zhao, Zhiyuan Zuo
Summary: This study demonstrates the use of lead-free Cs3Bi2X9 perovskite films in memristors, which show excellent resistive switching performance and can emulate various synaptic functions in artificial neural networks. The research provides insights into the potential applications of perovskites in ecofriendly and hardware-oriented neuromorphic computing architectures.
ACS APPLIED NANO MATERIALS
(2023)
Review
Chemistry, Physical
Tianhao Wu, Xiao Liu, Xinhui Luo, Xuesong Lin, Danyu Cui, Yanbo Wang, Hiroshi Segawa, Yiqiang Zhang, Liyuan Han
Summary: Efficient and stable development of lead-free perovskite solar cells (PSCs) using tin as a promising candidate for high-performance, eco-friendly photovoltaic technology has been reviewed. Approaches toward efficiency improvement and challenges in reaching higher PCE and scalable production for tin PSCs have been discussed in this paper with the goal of accelerating their commercialization.
Article
Chemistry, Multidisciplinary
Neha Tewari, Sunil B. Shivarudraiah, Jonathan E. Halpert
Summary: The study introduces a lead-free all-inorganic bismuth-based perovskite halide as a photoelectrode for energy harvesting in lithium-ion batteries without the need for external load. The performance of the battery using different current collectors demonstrates the electrode's various functions, and further exploration in anode structure and design shows potential for more efficient photobatteries.
Article
Engineering, Electrical & Electronic
Deepak Yadav, Suman Gora, Arun Kumar, Mandeep Jangra, Kanhaiya Lal Yadav, Arnab Datta, Monojit Bag
Summary: Hysteresis effects in halide perovskite-based devices can be used for memory devices and brain-like computing. The exact mechanism behind the switching between high and low resistance states in halide perovskite memristors is still under debate. This study aims to understand the switching mechanism and charge transport by analyzing the SET-RESET states through current-voltage characteristics and impedance spectroscopy of an ITO/MAPbBr(3)/Au device at different applied biases and light intensities.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hui Yang, Liang Chu
Summary: 2D MBenes with unique electronic structures and physicochemical properties have shown great promise in various applications. Recently, scientists successfully fabricated 2D monolayer Mo4/3B2-xTz with ordered metal vacancies, demonstrating the feasibility of a top-down approach for the synthesis of MBenes.
CHINESE CHEMICAL LETTERS
(2023)
Article
Materials Science, Ceramics
Weixi Xia, Hang Cheng, Qinan Mao, Yang Ding, Lang Pei, Yiwen Zhu, Meijiao Liu, Chunhua Wang, Jiasong Zhong
Summary: Mn4+ activated oxide phosphor is a popular research topic for plant growth LEDs due to its coincidence with photosensitive pigment Pfr. By conducting charge compensation with Li+ dopant, a phosphor with good thermal stability and high emission intensity is obtained. A PDMS-LED device fabricated with this phosphor shows promising potential in promoting plant growth based on its high luminescence intensity and working stability.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Xinyang Shi, Yu Xue, Qinan Mao, Lang Pei, Xinyue Li, Meijiao Liu, Qi Zhang, Jiasong Zhong
Summary: In this study, Eu3+ single-doped Ca2Sb2O7:Eu3+ phosphors with high relative sensitivity (Sr) were developed for dual-emitting-center luminescence thermometry. The anti-thermal quenching behavior of Eu3+ originating from the energy transfer (ET) of host->Eu3+ was found and proved. Adjustable color emission from blue to orange was achieved. The developed phosphors are expected to be prospective candidates in luminescence thermometers and LED devices in various conditions due to their excellent performance in optical thermometry, color-tunable properties, and outstanding acid and alkali resistance for PDMS films.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Xinyue Lu, Zhanfeng Ma, Qinan Mao, Meijiao Liu, Jiasong Zhong
Summary: Developing a new Eu2+-doped blue-green phosphor with tunable spectral in silicate materials is challenging but important for high-quality phosphor-converted white light-emitting diodes. In this study, a series of NaBaScxLu1-xSi2O7: Eu2+ phosphors with blue-green color-tunable luminescence were designed. By modulating the ratio of Sc/Lu, both the photoluminescence and thermal stability properties can be controlled. The introduction of Sc3+ significantly enhances the emission intensity, quantum efficiency, and thermal stability of the phosphors.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Xinyang Shi, Yuqi Chen, Guixian Li, Kangrui Qiang, Qinan Mao, Lang Pei, Meijiao Liu, Jiasong Zhong
Summary: In this study, a luminescence thermometer with high sensitivity was designed by taking advantage of the distinguished thermal response between Eu3+ and Mn4+. The thermometric performances were investigated using the fluorescence intensity ratio (FIR) of Eu3+(5D0 -> 7F2)/Mn4+(2Eg -> 4A2g) under dual-wavelength excitation, and the maximum relative sensitivities were determined to be 4.072% K-1 and 3.072% K-1. This research provides an effective strategy for designing high-sensitivity dual-wavelength excitation optical thermometers and has great potential in the field of luminescence thermometry.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
Zhiwei Zhou, Ruixin Zhang, Yanling Yang, Xing Li, Jiawei Ren
Summary: This study revealed the inhibitory mechanisms of natural organic matter (NOM) on the removal of organic micro-pollutants (OMPs) through adsorption/photocatalysis. The presence of terrestrial-derived, humic-like NOM fractions with high aromaticity hindered the adsorption and photocatalytic degradation of the model OMP sulfamerazine (SMZ). The inner filter effect, competition between NOM and SMZ, and radical scavenging were responsible for the reduced photocatalysis of SMZ.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Engineering, Environmental
Zhanfeng Ma, Xiao Liu, Xusheng Wang, Zhenggang Luo, Weirong Li, Yuhang Nie, Lang Pei, Qinan Mao, Xin Wen, Jiasong Zhong
Summary: This study presents a d-band center tuning strategy to enhance the photocatalytic activity for CO2 activation. By engineering Mn dopants and oxygen vacancies in Zn2GeO4 nanorods, a strong interaction between CO2 molecules and the catalysts was achieved, resulting in significantly accelerated CO2 photoreduction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Yu Xue, Yuqi Chen, Qinan Mao, Yang Ding, Gongxun Bai, Liang Chu, Meijiao Liu, Jiasong Zhong
Summary: This study demonstrates tunable emission colors and high sensitivity for fluorescence temperature sensing by co-doping Bi3+-Sm3+ in La3Ta0.8Sb0.2O7. The research also shows the thermochromic imaging effect of phosphor/PDMS films.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Lang Pei, Zhenggang Luo, Xusheng Wang, Zhanfeng Ma, Yuhang Nie, Jiasong Zhong, Ding Yang, Sateesh Bandaru, Bao-Lian Su
Summary: In this study, a novel S-scheme heterojunction photocatalyst was synthesized for efficient CO2-to-syngas conversion. The photocatalyst showed remarkable activity and selectivity in the conversion of CO2 to syngas, even without the use of sacrifice reagents or additional cocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Mathematics, Applied
Zhengxin Zhou
Summary: In this paper, the necessary and sufficient conditions for A-i) differential systems to have an analytic commutator are provided. These conditions are then used to determine whether the origin point of the A-i) differential systems is an isochronous center.
ELECTRONIC JOURNAL OF QUALITATIVE THEORY OF DIFFERENTIAL EQUATIONS
(2023)
Article
Materials Science, Multidisciplinary
Yuqi Chen, Yu Xue, Qinan Mao, Lang Pei, Yang Ding, Yiwen Zhu, Meijiao Liu, Jiasong Zhong
Summary: Rare-earth (RE) ion-doped luminescent materials have been widely used in scientific research and practical applications. Designing a single matrix with dual-emitting centers and color-tunable properties has become a trend in the development of luminescent materials. In this study, Eu3+/Sm3+ single-doped LuNbO4 (LNO) phosphors were developed, demonstrating multi-color emissions and anti-thermal quenching behavior due to energy transfer from the host to activators. Furthermore, these phosphors showed high temperature sensitivity and adjustable emissions, making them potential candidates for anti-counterfeiting and other applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Review
Chemistry, Inorganic & Nuclear
Yang Ding, Chunhua Wang, Lang Pei, Soumyajit Maitra, Qinan Mao, Runtian Zheng, Meijiao Liu, Yun Hau Ng, Jiasong Zhong, Li-Hua Chen, Bao-Lian Su
Summary: Photocatalysis is a highly promising technology for solving environmental problems. The g-C3N4 photocatalyst has drawn significant attention due to its stability, light response, low cost, and environmental-friendly properties. However, the pristine g-C3N4 suffers from recombination of charge carriers, lack of active sites, and limited visible light harvesting, resulting in unsatisfactory photocatalytic performance. Heterostructured C3N4 photocatalysts have emerged as a research focus in environmental fields, offering enhanced dissociation of electron-hole pairs, broader visible light response, and improved photoredox capability. The developments and strategies for constructing efficient C3N4-based heterostructures are critically reviewed, providing valuable insights for readers and inspiring new concepts in heterostructure engineering. Furthermore, the challenges and opportunities in fabricating large-scale and commercial heterostructured C3N4 photocatalysts are discussed for future directions in this field.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
Yuqi Chen, Guixian Li, Yang Ding, Qinan Mao, Meijiao Liu, Chunhua Wang, Runtian Zheng, Bao-Lian Su, Jiasong Zhong
Summary: A thermal-activated electron compensation Mn2+- and Tb3+-codoped Ca2LaTaO6 phosphor is developed for accurate high-temperature sensing. It exhibits antithermal quenching emission of Tb3+ due to the replenishment of attenuated emission caused by thermal quenching through the deep electron trap states induced by Mn2+ dopant. The luminescence intensity ratio (LIR) and lifetime-based thermometry are designed to improve the accuracy of temperature measurement. Evaluation: 8/10.
ADVANCED PHOTONICS RESEARCH
(2023)
Review
Optics
Zhican Zhou, Xiangpeng Ou, Yuetong Fang, Emad Alkhazraji, Renjing Xu, Yating Wan, John E. Bowers
Summary: Integrated silicon photonics has gained significant attention in academia and industry as a scalable, power-efficient, and eco-friendly solution. This paper provides an overview of the current state-of-the-art in application-driven on-chip silicon lasers, discussing both the device-level and system-wide perspectives. The paper highlights the potential applications of photonic integrated circuits with on-chip lasers in various fields, such as optical communications, LiDAR, sensors, integrated quantum technologies, and optical computing.
Article
Materials Science, Multidisciplinary
Kangrui Qiang, Yingqiang Yu, Yulong Ye, Liang Liang, Qinan Mao, Yang Ding, Yiwen Zhu, Meijiao Liu, Jiasong Zhong
Summary: This study developed a novel Sr2GdGa0.4Al0.6O5:Bi3+,Sm3+ phosphor with excellent luminescence performance for optical thermometry based on a cation-substitution strategy. By introducing various Al3+ ions, the emission peak of Bi3+ ions could be controlled and shifted, enabling effective signal differentiation for temperature detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
