Article
Chemistry, Physical
Sang Ho Lee, Chun Huang, Patrick S. Grant
Summary: Through discrete layering and optimized electrochemical behavior, a multi-layered composite electrode was utilized to explore new capacity-power combinations, showing remarkable rate capability and energy density in both lithium ion batteries and capacitors.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Marcel Heidbuechel, Thorsten Schultz, Tobias Placke, Martin Winter, Norbert Koch, Richard Schmuch, Aurora Gomez-Martin
Summary: Aqueous processing of Ni-rich layered oxide cathode materials is a promising approach to reduce manufacturing costs and environmental impact. The addition of lithium sulfate (Li2SO4) can protect the electrode surface, leading to improved cycle life and electrochemical performance.
Article
Materials Science, Ceramics
Tahoura Kazemizadeh, Mehdi Pourabdoli
Summary: A porous silicon-carbon composite was synthesized using mechanical activation method, which promoted the decomposition reaction of raw materials and facilitated the formation of carbon structure. The electrical resistivity of the composite was reduced, indicating improved conductivity.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Zongyu Wang, Zhengguan Xu, Yapeng Yuan, Xinghe Teng, Zepeng Pu, Yangyang Wang, Aiping Fu, Yu-Guo Guo, Hongliang Li
Summary: The newly designed Si@TiO2@rGO pomegranate-shaped microspheres exhibit high strength and superior reversible capacity, showing excellent cycling stability under high current density conditions.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yu-Qing Cai, Yuan-Yuan Hu, Li-Feng Yao, Qian Rong, Fei-Xiang Cheng, Jian-Jun Liu, Lin-Bo Tang, Jun-Chao Zheng, Shu-Biao Xia
Summary: Nitrogen-containing organic compounds have great potential for energy storage, but their solubility and polarization in the electrolyte limit their performance. In this study, 1,2,4,5-tetracyanobenzene was used as an anode and precursor to improve the electrochemical performance. The cyano groups, -C=N groups, and π conjugation between benzene rings were identified as the active centers for Li+ storage. The conjugated porous polymer showed better cycling stability and rate capability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Environmental
Junfeng Li, Lu Han, Xinlu Zhang, Hengchao Sun, Xinjuan Liu, Ting Lu, Yefeng Yao, Likun Pan
Summary: A novel TiO2-coated MoS2 nanotube structure has been synthesized in this study, showing superior long-term cycling performance due to its ability to accommodate volume changes, alleviate shuttle effects, enhance electron transport, and improve lithium-ion diffusion; By leveraging the synergistic effects of TiO2 layer, carbon, and MoS2, the structure outperforms existing MoS2-TiO2 based anode materials after 1000 cycles, demonstrating its potential for efficient lithium storage.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Ming Huang, Niall Kirkaldy, Yan Zhao, Yatish Patel, Frederic Cegla, Bo Lan
Summary: This work presents a simple and powerful non-destructive characterization technique based on ultrasonic resonance formed by the repetitive layers within lithium-ion batteries (LIBs). By developing a physical model, the method provides important information about the inner structure of LIBs and enables quantitative tracking of internal cell properties.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Nanoscience & Nanotechnology
Ruhan He, Zhenhui Liu, Pan He, Wen Luo, Ruohan Yu, Xufeng Hong, Xuelei Pan, Qingqu Zhou, Liqiang Mai, Liang Zhou
Summary: This study successfully overcame the challenges faced by TiO2 under deep discharging/charging conditions by constructing three-dimensional macroporous TiO2 microspheres with interconnected pores and nanocrystalline thin walls through a scalable template-assisted spray drying method. The excellent discharge capacity and cyclic stability offer new possibilities for the application of lithium-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Lukas Ibing, Tobias Gallasch, Vinzenz Goeken, Philip Niehoff, Martin Winter, Markus Boerner
Summary: Enabling aqueous processing of positive active materials and replacing toxicologically critical N-methyl-2-pyrrolidone can reduce the environmental and economic impact of lithium-ion battery production. Optimizing the use of additives and surfactants improves the distribution and interconnection of active/inactive materials, leading to superior battery performance and long-term cycling capacity retention.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Xing-Wen Huang, Song-Yi Liao, Yue-Zhu Li, Cun-Sheng Liu, Wei-Xiang Cheng, Chen Zhao, Yi-Zhao Chen, Yi-Dong Liu, Yong-Gang Min
Summary: A new layered porous organic cathode was designed by using few-layered MXene as the matrix and porous polyimide as the coating, improving the electronic and ionic transporting performances and enhancing the pseudocapacitive effect.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Xing-Wen Huang, Song-Yi Liao, Yue-Zhu Li, Cun-Sheng Liu, Wei-Xiang Cheng, Chen Zhao, Yi-Zhao Chen, Yi-Dong Liu, Yong-Gang Min
Summary: In this study, a layered porous organic cathode was fabricated using MXene and porous polyimide, which showed improved electrochemical performance due to its thin layered porous structure and fast electronic and ionic transport channels.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Energy & Fuels
Susmi Anna Thomas
Summary: This article provides a review of the potential applications of black phosphorous (BP) in rechargeable batteries. It discusses the unique properties of BP compared to other 2D materials and explores various synthesis methods. The article also examines the application of BP in different types of rechargeable batteries and emphasizes the preparation of BP-based hybrid electrodes. The advantages of BP-based hybrid electrodes, such as high specific capacity and long cycle life, highlight their potential use in next-generation rechargeable batteries.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Chemistry, Physical
Zhaodong Li, Jingjie Su, Xudong Wang
Summary: Atomic layer deposition (ALD) is a thin film chemical vapor deposition process used in the semiconductor industry, showing potential in fabricating energy storage devices. Research on ALD applications in supercapacitors and lithium-ion batteries provides insights into future energy storage technologies.
Article
Chemistry, Physical
Arvinder Singh, Ozlem Sel, Hubert Perrot, Veronique Balland, Benoit Limoges, Christel Laberty-Robert
Summary: This study investigates the highly reversible proton-coupled MnIV and MnII conversion in mild aqueous buffered electrolyte using 3D free-standing electrospun CNF electrodes as conductive scaffolds. The experimental results show that the free-standing CNF electrodes can maintain high charge capacity and cycling efficiency even at high MnO2 loading. This combination could be a striking approach for developing high energy efficiency MnO2-based mild aqueous batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Nanoscience & Nanotechnology
Yuxin Jiang, Liyuan Chai, Dehe Zhang, Fangping Ouyang, Xiangyuan Zhou, Sikpaam Alhassan, Sailin Liu, Yingjie He, Lvji Yan, Haiying Wang, Wenchao Zhang
Summary: The LiMn2O4 material with highly exposed (111) facets prepared by a ball-milling method showed excellent desalination capacity and cycle stability as a capacitive deionization electrode.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Hochan Song, Jonghee Yang, Woo Hyeon Jeong, Jeongjae Lee, Tack Ho Lee, Jung Won Yoon, Hajin Lee, Alexandra J. Ramadan, Robert D. J. Oliver, Seong Chan Cho, Seul Gi Lim, Ji Won Jang, Zhongkai Yu, Jae Taek Oh, Eui Dae Jung, Myoung Hoon Song, Sung Heum Park, James R. Durrant, Henry J. Snaith, Sang Uck Lee, Bo Ram Lee, Hyosung Choi
Summary: This study explores a method to achieve high efficiency and stability in semiconducting lead halide perovskite nanocrystals (PNCs) through a single processing strategy by finding suitable surface ligands. The PNC ink prepared using this method can be used to fabricate both LED and PV devices, with peak electroluminescence external quantum efficiency of 17.00% and power conversion efficiency of 14.92%. It is found that a careful design of the aromatic rings in the ligands is crucial for achieving high performance, ease of processing, and improved phase stability. This research demonstrates the role of ligand design in PNC ink formulations for high-throughput production of optoelectronic devices and paves the way for dual-mode devices with both PV and LED functionalities.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shuaifeng Hu, Pei Zhao, Kyohei Nakano, Robert D. J. Oliver, Jorge Pascual, Joel A. A. Smith, Takumi Yamada, Minh Anh Truong, Richard Murdey, Nobutaka Shioya, Takeshi Hasegawa, Masahiro Ehara, Michael B. B. Johnston, Keisuke Tajima, Yoshihiko Kanemitsu, Henry J. J. Snaith, Atsushi Wakamiya
Summary: In this study, it is found that the surface treatment of mixed tin-lead halide perovskite films with piperazine promotes charge extraction, and combined treatment with CPTA reduces hysteresis and improves efficiency and stability of solar cells.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Peng Chen, Yun Xiao, Lei Li, Lichen Zhao, Maotao Yu, Shunde Li, Juntao Hu, Bin Liu, Yingguo Yang, Deying Luo, Cheng-Hung Hou, Xugang Guo, Jing-Jong Shyue, Zheng-Hong Lu, Qihuang Gong, Henry J. J. Snaith, Rui Zhu
Summary: An improved two-step sequential deposition technique is demonstrated for inverted-structure metal halide perovskite solar cells (PSCs), resulting in significantly enhanced performance. The bottom organic hole-selective layer is treated with a binary modulation system, leading to the refinement of up and buried interfaces for the perovskite films and improved charge transportation. The optimized PSCs achieve a high power conversion efficiency of 23.4% and demonstrate good operational and thermal stability.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Ruihuan Ge, Adam M. Boyce, Yige Sun, Paul R. Shearing, Patrick S. Grant, Denis J. Cumming, Rachel M. Smith
Summary: The complex microstructure of the electrode greatly affects the performance of lithium-ion batteries (LIBs). The microporosity of the carbon binder domain (CBD) has been studied for the first time, revealing its influence on battery performance. The battery's specific capacity improves as the microporosity of the CBD phase increases.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Emil G. Dyrvik, Jonathan H. Warby, Melissa M. McCarthy, Alexandra J. Ramadan, Karl-Augustin Zaininger, Andreas E. Lauritzen, Suhas Mahesh, Robert A. Taylor, Henry J. Snaith
Summary: In this study, a thin Al2O3 layer grown by atomic layer deposition was used to selectively cover regions of imperfect hole transport layer deposition and form an intermixed composite with the organic transport layer. This technique improved electroluminescent external quantum efficiency in PeLEDs by reducing nonradiative recombination and improving carrier selectivity. The results show great potential for scale-up and application in other fields.
Article
Engineering, Environmental
Felix Schmidt, Meret Amrein, Sebastian Hedwig, Manuel Kober-Czerny, Adriana Paracchino, Ville Holappa, Riikka Suhonen, Andreas Schaeffer, Edwin C. Constable, Henry J. Snaith, Markus Lenz
Summary: Perovskite solar cells, which rely on the use of lead, face potential environmental concerns. A recycling process using hot water was demonstrated to effectively extract lead from synthetic precursor mixes, plastic-based, and glass-based perovskites with high efficiency. The extracted lead can be precipitated in high purity, allowing for its recovery. This straightforward method mitigates the risk of lead leaching at the end-of-life of perovskite solar cells.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Shikang Feng, Zelong Jin, Wenjia Du, Insung Han, Andrew Lui, Xiaorong Zhou, Paul R. Shearing, Enzo Liotti, Patrick S. Grant
Summary: Fe-rich intermetallics have a significant impact on the mechanical properties and recyclability of aluminium alloys. This paper investigates the formation and growth mechanisms of primary Al13Fe4 on Al3Ti inoculants through various analytical techniques. The study reveals the crystallographic orientation relationships between Al13Fe4 and Al3Ti, as well as the correlation between the formation and growth dynamics of Al13Fe4 and a twinning-related pseudo-symmetry of Al13Fe4. A potential strategy to refine both intermetallics and a-Al in recycled alloys with elevated Fe concentration is proposed.
MATERIALS & DESIGN
(2023)
Article
Multidisciplinary Sciences
Ziyang Ning, Guanchen Li, Dominic L. R. Melvin, Yang Chen, Junfu Bu, Dominic Spencer-Jolly, Junliang Liu, Bingkun Hu, Xiangwen Gao, Johann Perera, Chen Gong, Shengda D. Pu, Shengming Zhang, Boyang Liu, Gareth O. Hartley, Andrew J. Bodey, Richard I. Todd, Patrick S. Grant, David E. J. Armstrong, T. James Marrow, Charles W. Monroe, Peter G. Bruce
Summary: All-solid-state batteries with a Li anode and ceramic electrolyte have the potential to significantly outperform current Li-ion batteries. However, the formation and penetration of Li dendrites during charging remain a major challenge. Previous models focused on a single process for dendrite initiation and propagation, but our study reveals that these processes are actually separate and independent.
Article
Chemistry, Physical
Elena J. J. Cassella, Emma L. K. Spooner, Joel A. A. Smith, Timothy Thornber, Mary E. E. O'Kane, Robert D. J. Oliver, Thomas E. E. Catley, Saqlain Choudhary, Christopher J. J. Wood, Deborah B. B. Hammond, Henry J. J. Snaith, David G. G. Lidzey
Summary: Solvent-engineered deposition of high crystalline perovskite thin-films at room temperature using gas-quenching method has been achieved, leading to the fabrication of annealing-free perovskite solar cells (PSCs) with stabilized power conversion efficiencies (PCEs) up to 18.0%. Self-assembled molecules have been used as the hole-transporting layer, further improving the stabilized PCEs of annealing-free devices to 17.1%. This study provides a new approach for large-scale production of annealing-free PSCs.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Dominic Spencer-Jolly, Varnika Agarwal, Christopher Doerrer, Bingkun Hu, Shengming Zhang, Dominic L. R. Melvin, Hui Gao, Xiangwen Gao, Paul Adamson, Oxana Magdysyuk, Patrick S. Grant, Robert A. House, Peter G. Bruce
Summary: Ag-carbon composite interlayers have been proven effective in enabling Li-free cycling of solid-state batteries. Li intercalates electrochemically into graphite on charge, subsequently reacting chemically with Ag to form Li-Ag alloys. Discharge does not reverse this process, instead passing through Li-deficient Li-Ag phases. At higher charging rates, Li intercalation outpaces chemical reactions with Ag, resulting in delayed Li-Ag phase formation and increased Li metal deposition at the current collector. Li dendrites are not suppressed at and above 2.5 mA•cm-2, and Ag nanoparticles are not more effective than a graphite interlayer. Instead, Ag in the carbon interlayer promotes more uniform Li and Li-Ag formation during charge.
Review
Electrochemistry
Shengyi Hu, Chun Huang
Summary: Solid-state lithium batteries have received significant research attention for their potential advantages over conventional liquid electrolyte lithium batteries. The discovery of lithium solid-state electrolytes (SSEs) is still ongoing to address remaining challenges, and machine learning (ML) approaches could greatly expedite this process.
Review
Electrochemistry
Anupriya K. Haridas, Chun Huang
Summary: This review discusses the polysulfide inhibition strategies employed in room-temperature sodium-sulfur batteries (RT-NaSBs) through electrode and interfacial engineering, including sulfur immobilization and polysulfide trapping. The benefits of engineering the highly reactive Na anode interface in improving the stability of RT-NaSBs are also elucidated. Lastly, the future perspectives on designing high-performance RT-NaSBs for practical applications are briefly outlined.
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Patrick S. Grant
Summary: Additive-free electrode architectures were fabricated using a layer-by-layer spray coating approach to enhance the capacity and reduce the cost of lithium-ion battery cells. By reducing the binder fraction and conductivity enhancers, all-additive-free full cell LIB configurations with high energy density and power performance were achieved.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Insung Han, Shikang Feng, Fabian Wilde, Patrick S. Grant, Enzo Liotti
Summary: Hot tears during alloy solidification can have catastrophic effects on cast tensile properties. While there are correlations between casting conditions and hot tear sensitivity, the influence of microstructure on tearing has not been fully understood. In this study, in situ X-ray radiography is used to quantify the formation and growth of hot tears in Al-5Cu and Al-5Cu-1Fe alloys, and an automated hot tear detection algorithm is developed to analyze the role of IMC particles in hot tear behavior.
Article
Chemistry, Physical
Sirinya Ukasi, Paritta Jutapukti, Chiranicha Ninthub, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Satana Pongampai, Naratip Vittayakorn, Thitirat Charoonsuk
Summary: This study explores the enhancement of electrical output of flexible hybrid piezoelectric-triboelectric nanogenerators by incorporating gamma-glycine into fully organic composites. The research demonstrates the importance of optimized concentrations of gamma-glycine and chitosan in achieving superior performance. The study identifies the critical content of gamma-glycine that leads to the highest output signal, and provides theoretical explanations for this observation.
Article
Chemistry, Physical
Yoonsang Ra, Yu-seop Kim, Seonmo Yang, Namgyu Kang, Gyuwon Oh, Chungyeon Cho, Sangmin Lee, Dongwhi Choi
Summary: In this study, a portable energy harvester (STEP) was proposed to drive various functional LEDs using biomechanical energy. The roles and functionalities of a triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) in the hybrid energy harvester were experimentally demonstrated, and the necessity of hybridization for LED-involved devices was described. The STEP showed promising potential as an effective energy supply strategy for various functional LEDs in related industries.
Article
Chemistry, Physical
Dae Sol Kong, Kyung Hoon Kim, Ying Chieh Hu, Jong Hun Kim, Inseo Kim, Jeongwan Lee, Joonhyuk Lee, Won Hyuk Shon, Hanjin Yoo, Chul-Un Ro, Seungsu Lee, Hyoungjeen Jeen, Minbaek Lee, Minseok Choi, Jong Hoon Jung
Summary: With the rapid development of the Internet of Things and artificial intelligence, smart home has emerged to fulfill the security, convenience, and energy-saving issues of modern life. A flexoelectric mica crystal is used to augment the finger touch-driven triboelectric output for operating a wireless and multichannel smart home controller. This work provides important ingredients for enhancing triboelectric output and realizing a convenient, multifunctional, cost-effective, and adaptable smart home control system without batteries.
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Chemistry, Physical
Wen Zhang, Fangyuan Cheng, Miao Chang, Yue Xu, Yuyu Li, Shixiong Sun, Liang Wang, Leimin Xu, Qing Li, Chun Fang, Meng Wang, Yuhao Lu, Jiantao Han, Yunhui Huang
Summary: This study successfully induced the formation of a uniform and robust CEI by constructing ZrO2 nano-rivets on the surface of LCO, stabilizing the surface of high-voltage LCO and facilitating lithium-ion diffusion.
Article
Chemistry, Physical
Karl P. Olson, Laurence D. Marks
Summary: This paper investigates the role of contacting shapes in triboelectricity and provides scaling rules for designing energy harvesting devices.
Article
Chemistry, Physical
Jong-An Choi, Jingu Jeong, Mingyu Kang, Hee-Jin Ko, Taehoon Kim, Keun Park, Jongbaeg Kim, Soonjae Pyo
Summary: Wind-driven triboelectric nanogenerators (WTENGs) are a promising emerging technology for sustainable wind energy harvesting, offering high output performance, lightweight design, and compact dimensions. This study introduces an innovative WTENG design that leverages a rolling-based mechanism to achieve efficient omnidirectional wind energy harvesting.
Article
Chemistry, Physical
Liwei Dong, Qian Tang, Chaoyang Zhao, Guobiao Hu, Shuai Qu, Zicheng Liu, Yaowen Yang
Summary: This paper proposes a novel hybrid scheme for flag-type nanogenerators (FNGs) that enhances their performance and broadens their operational wind speed ranges by harnessing the synergistic potential of two aerodynamic behaviors. The proposed flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) integrates flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). The FTPNG achieves significant power generation and a broad wind speed range, surpassing other FNGs, making it suitable for various self-powered systems and Internet of Things applications.
Review
Chemistry, Physical
Yunmeng Li, Xin Liu, Zewei Ren, Jianjun Luo, Chi Zhang, Changyong (Chase) Cao, Hua Yuan, Yaokun Pang
Summary: The demand for green and eco-friendly materials is growing due to increasing environmental concerns related to traditional petroleum-based products. Marine biomaterials have emerged as a promising alternative, thanks to their abundant availability, biocompatibility, biodegradability, and low toxicity. In this review, we discuss the development and applications of triboelectric nanogenerators (TENGs) based on marine biomaterials. The operational modes, foundational principles, intrinsic qualities, and advantages of marine biomaterials commonly used in TENG designs are highlighted. Approaches to enhance the efficacy of TENGs derived from marine biomaterials are also discussed, along with documented applications from existing literature. Furthermore, the existing challenges and future directions in marine biomaterial-inspired TENGs are explored.
Article
Chemistry, Physical
Matthew P. Wells, Adam J. Lovett, Yizhi Zhang, Zhongxia Shang, Kosova Kreka, Babak Bakhit, Haiyan Wang, Albert Tarancon, Judith L. MacManus-Driscoll
Summary: Reversible solid oxide cells (rSOCs) offer a promising solution to efficient energy conversion, but have been limited in portable power and electrolysis applications due to excessive polarisation resistance of the oxygen electrode at low temperatures. This study demonstrates the growth of symmetric and complete rSOC structures with reduced polarisation resistance by tuning oxygen vacancy through annealing, providing a promising route towards high-performance rSOC devices for portable power applications.
Article
Chemistry, Physical
Kangkang Bao, Minghui Wang, Yue Zheng, Panpan Wang, Liwen Yang, Yang Jin, Hui Wu, Bin Sun
Summary: This study utilizes ethanol as an electrolyte additive to modulate the migration of zinc ions and the surface structure of zinc anodes, resulting in improved capacity retention and cycle life of zinc-based aqueous batteries.
Article
Chemistry, Physical
Haichao Yang, Wensi Cai, Ming Wang, Saif M. H. Qaid, Zhiyuan Xu, Huaxin Wang
Summary: The introduction of sodium alginate (SA) into perovskite solar cells improves the carrier dynamics, stability, and performance by inhibiting nonradiative recombination and retarded charge dynamics.
Article
Chemistry, Physical
Cuirong Zhang, Mingyuan Wei, Zihan Chen, Wansheng Lin, Shifan Yu, Yijing Xu, Chao Wei, Jinwei Zhang, Ziquan Guo, Yuanjin Zheng, Qingliang Liao, Xinqin Liao, Zhong Chen
Summary: Artificial Intelligence of Things (AIoT) aims to establish smart and informative interactions between humans and devices. However, common pixelated sensing arrays in AIoT applications present problems such as hard and brittle devices, complex structures, and low precision. This article introduces an innovative solution called the all-in-one intelligent semitransparent interactive nerve patch (AISI nerve patch), which integrates sensing, recognition, and transmission functionalities into a thin and flexible patch. The AISI nerve patch is semitransparent, allowing for accurate identification without affecting aesthetics, and it can be attached to any curved surface for intelligent and interactive applications. With rapid response time and high precision recognition, it enables the integration of artificial intelligence and achieves high recognition accuracy for further development of AIoT.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
Article
Chemistry, Physical
Yao Xiao, Puxian Xiong, Yakun Le, Zhenjie Lun, Kang Chen, Zhiduo Wang, Peishan Shao, Zhicong Chen, Dongdan Chen, Zhongmin Yang
Summary: This study successfully synthesized a material with multi-stimulus-responsive luminescence and confirmed the internal relationship between luminescence and defects by regulating the distribution and depth of defects. The dynamic process of multi-stimulus-responsive luminescence was validated by experimental and calculation results.
