Review
Chemistry, Multidisciplinary
Jiahui Ma, Hefei Liu, Ning Yang, Jingyi Zou, Sen Lin, Yuhao Zhang, Xu Zhang, Jing Guo, Han Wang
Summary: Memory technologies and applications using emerging 2D materials have gained increasing attention in recent years. This article provides an overview of progress in 2D-material-based memory technologies and applications at the circuit level. It discusses the growth and fabrication methods, reviews integrated memory circuits, compares experimental implementations with theoretical estimations, summarizes in-memory computing applications, and identifies challenges and possible approaches for more reliable system-level fabrication.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Lei Zhang, Zhe-Ji Wang, Bo Ma, Xiang-Yang Li, Yu-Chi Dai, Guowen Hu, Yong Peng, Qiang Wang, Hao-Li Zhang
Summary: This study reports a covalent modification method for liquid-phase exfoliated BP nanosheets based on a rational analysis of the BP structure. The modification is achieved using carbene as the modifying agent, improving the solubility and stability of BP nanosheets. Detailed characterization and theoretical calculations reveal the reaction mechanism and chemical properties of the modified BP.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Multidisciplinary
J. S. Shaikh, N. S. Shaikh, S. Sabale, N. Parveen, S. P. Patil, Y. K. Mishra, P. Kanjanaboos, S. Praserthdam, C. D. Lokhande
Summary: This review discusses the potential of phosphorus as an advanced material for commercial realization of advanced supercapacitors, highlighting its excellent physical and electrochemical properties. Phosphorus-based electrodes are widely studied and applied due to their good electrical conductivity and abundance in nature.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Chemistry, Analytical
Maria A. Tapia, Rui Gusmao, Clara Perez-Rafols, Xavier Subirats, Nuria Serrano, Zdenek Sofer, Jose Manuel Diaz-Cruz
Summary: This study demonstrates that exposing BP-based working electrodes to normal ambient conditions can enhance the performance of voltammetric sensing applications, with oxidized BP-SPCE showing improved analytical performance. The results highlight the potential of preparing and using BP-based sensors in normal ambient settings, with promising applications under physiological conditions.
Article
Chemistry, Physical
Abdulaziz S. R. Bati, Purevlkham Myagmarsereejid, Marco Fronzi, Kaicai Fan, Porun Liu, Yu Lin Zhong, Paul L. Burn, Ian R. Gentle, Paul E. Shaw, Munkhbayar Batmunkh
Summary: This article reports a simple solution-based method for the preparation of single-atom nickel-doped BP nanosheets and their application in perovskite solar cells, which leads to improved performance. Perovskite films prepared with the Ni-BP passivation layer have reduced defect densities and improved charge-transfer properties.
Review
Chemistry, Physical
Junchuan Liang, Yi Hu, Kaiqiang Zhang, Yaoda Wang, Xinmei Song, Anyang Tao, Yuzhu Liu, Zhong Jin
Summary: Alloying black phosphorus with arsenic to create black arsenic-phosphorus materials yields outstanding optical, electrical, and photoelectric properties, with potential applications in infrared photodetectors and high-performance FETs.
Review
Chemistry, Inorganic & Nuclear
M. B. Tahir, Nisar Fatima, Urooj Fatima, M. Sagir
Summary: Research in the field of semiconductor photocatalysis plays a crucial role in addressing the global energy crisis. The recent discovery of 2D BP, or phosphorene, offers new hope for solving energy issues, while studies on the material's morphology and eco-friendly energy production through density functional theory provide a better understanding.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Fei Xue, Chenhui Zhang, Yinchang Ma, Yan Wen, Xin He, Bin Yu, Xixiang Zhang
Summary: With the advancement of Internet of Things and big data, there is a growing need for high-performance memory hardware. 2D materials, with their excellent electronic properties, offer a promising solution for developing advanced memory device arrays. In recent years, there has been rapid development in 2D-material-based memory devices, which can be used for brain-inspired computing and sensing. This article provides a comprehensive overview of the latest research and discusses future research directions.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Lei Yin, Ruiqing Cheng, Yao Wen, Chuansheng Liu, Jun He
Summary: The paper reviews the recent progress of 2D memory devices for in-memory computing, describing their operation mechanisms, memory characteristics, and weighing their pros and cons. It also presents their versatile applications in in-memory computing technology, and discusses the current challenges and potential strategies for future 2D in-memory computing systems.
ADVANCED MATERIALS
(2021)
Review
Materials Science, Multidisciplinary
Yajuan Liu, Muqing Chen, Shangfeng Yang
Summary: Black phosphorus (BP) as an emerging two-dimensional material has wide applications in various fields, but its ambient stability needs to be enhanced due to oxidation. Chemical functionalization is an effective method for improving the stability of few-layer BP, with covalent and noncovalent functionalization being key approaches. This review provides a comprehensive overview of the chemical functionalization of BP, highlighting the impact on electronic properties and ambient stability, and discussing future challenges and developments.
Article
Chemistry, Multidisciplinary
Xia Wang, Ramya Kormath Madam Raghupathy, Christine Joy Querebillo, Zhongquan Liao, Dongqi Li, Kui Lin, Martin Hantusch, Zdenek Sofer, Baohua Li, Ehrenfried Zschech, Inez M. Weidinger, Thomas D. Kuehne, Hossein Mirhosseini, Minghao Yu, Xinliang Feng
Summary: In this study, a high-efficiency metal-free electrocatalyst, BP-CN-c, was successfully created with the guidance of DFT calculations, featuring polarized P-N covalent bonds that can effectively regulate electron transfer and promote oxygen adsorption. BP-CN-c not only exhibits excellent oxygen electrocatalytic performance, but also represents the first bifunctional BP-based metal-free oxygen catalyst.
ADVANCED MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Mei Xian Low, Sherif Abdulkader Tawfik, Salvy P. Russo, Sharath Sriram, Madhu Bhaskaran, Sumeet Walia
Summary: This study demonstrates the use of a simple prestretch fabrication technique to create a functional multilayer black phosphorus-based device on a stretchable elastomeric platform, and shows that mechanical strain can effectively modulate the electronic and optical properties of black phosphorus.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Xin Wang, Ming Ma, Xuewen Zhao, Peng Jiang, Yan Wang, Jiahong Wang, Jinying Zhang, Fuxiang Zhang
Summary: A VP/BP heterostructure was constructed using a phase engineering strategy, creating a well-matched heterophase interface to improve charge separation efficiency and photocatalytic activity for hydrogen evolution. This study highlights the feasibility of phase engineering and provides an alternative strategy to enhance the performance of photocatalysts.
Review
Engineering, Environmental
Yaopeng Wu, Wei Yuan, Ming Xu, Shigen Bai, Yu Chen, Zhenghua Tang, Chun Wang, Yang Yang, Xiaoqing Zhang, Yuhang Yuan, Mingyue Chen, Xing Zhang, Bin Liu, Lelun Jiang
Summary: This article briefly reviews the structures, properties, and fabrication processes of flexible supercapacitors based on two-dimensional black phosphorus. It highlights the design strategies and future challenges of BP-based FSCs.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Multidisciplinary Sciences
Pooja Sindhu, K. S. Ananthram, Anil Jain, Kartick Tarafder, Nirmalya Ballav
Summary: An insulator-to-metal-like transition (IMLT) was demonstrated at 333K in thin films of a biological metal-organic framework (bio-MOF), without significant changes in the structure, by extended coordination of the cystine ligand with cupric ion. This discovery opens up new possibilities for bio-MOFs to be used as robust materials with thin film device functionalities.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Xiangyang Guo, Chung Kim Nguyen, Aishani Mazumder, Yichao Wang, Nitu Syed, Enrico Della Gaspera, Torben Daeneke, Sumeet Walia, Samuel J. Ippolito, Ylias Sabri, Yongxiang Li, Ali Zavabeti
Summary: Various non-stratified two-dimensional (2D) materials can be obtained from liquid metal surfaces that are not naturally accessible. These materials have high-quality oxide layers that can be transferred onto desired substrates. The liquid metal-derived 2D oxides have versatile applications, but their gas-sensing properties remain underexplored.
Article
Materials Science, Multidisciplinary
Ganganath S. Perera, Md. Ataur Rahman, April Blazevski, Alasdair Wood, Sumeet Walia, Madhu Bhaskaran, Sharath Sriram
Summary: In this study, a conductometric biosensor incorporating molecularly imprinted polymer nanoparticles (nanoMIPs) was developed for the highly accurate, rapid, and selective detection of SARS-CoV-2 proteins and variants. The biosensor showed real-time detection and on-screen rapid results, which can help curve the outbreak by alerting users to infections through smartphones.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Taimur Ahmed, Azmira Jannat, Vaishnavi Krishnamurthi, Thiha Aung, Aishani Mazumder, Ali Zavabeti, Nitu Syed, Torben Daeneke, Jian Zhen Ou, Akram AI-Hourani, Sumeet Walia
Summary: This study reports the use of atomically thin nanosheets of beta-In2S3 to mimic the dynamics of biological synapses for optoelectronic devices. The persistent photoconductivity (PPC) effect exhibited by these nanosheets enables them to function as synaptic devices. These atomically thin nanosheets have the potential for applications in multispectral imaging and neuromorphic computation.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Qianqian Shi, Dashen Dong, Gediminas Gervinskas, Han Lin, Debabrata Sikdar, Baohua Jia, Sumeet Walia, Sharath Sriram, Madhu Bhaskaran, Lim Wei Yap, Wenlong Cheng
Summary: This work presents a method for fabricating 3D helical plasmonic nanostructures from 2D plasmene nanosheets. By using a micro-spatula-based strategy inspired by the chocolate curls-making process, the plasmene nanosheets can be selectively scraped to free space, resulting in the spontaneous folding of the nanosheets into various complex helical nanostructures with controlled dimensions. This versatile fabrication route combines both bottom-up and top-down approaches and has potential applications in next-generation flexible nanophotonic devices.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Ajay Kumar Verma, Kishor Kumar Johari, Paritosh Dubey, Christophe Candolfi, Bertrand Lenoir, Sumeet Walia, S. R. Dhakate, Bhasker Gahtori
Summary: The thermoelectric performance of p-type TiCoSb-based compounds can be enhanced by a combined approach of tuning the electronic properties and defect engineering. Alloying with Fe and Zr leads to an overall increase in the peak ZT value, while further adjusting the hole concentration with Sn doping leads to an additional increase in ZT.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Suraj Loomba, Muhammad Waqas Khan, Muhammad Haris, Seyed Mahdi Mousavi, Ali Zavabeti, Kai Xu, Anton Tadich, Lars Thomsen, Christopher F. F. McConville, Yongxiang Li, Sumeet Walia, Nasir Mahmood
Summary: Hydrogen is an emerging clean fuel alternative, but its dependence on freshwater poses a threat to sustainability. Seawater, an abundant source, can be used as an alternative, but its high salt content causes corrosion and hinders its use. To overcome this, a unique catalyst composed of nitrogen-doped NiMo3P sheets with large homogenous pores is designed. The introduction of N and Ni optimizes surface energies, creates new active sites, and enhances stability, resulting in remarkable performance for hydrogen evolution and water splitting in seawater.
Article
Chemistry, Multidisciplinary
Chung Kim Nguyen, Aishani Mazumder, Edwin L. H. Mayes, Vaishnavi Krishnamurthi, Ali Zavabeti, Billy J. Murdoch, Xiangyang Guo, Patjaree Aukarasereenont, Aditya Dubey, Azmira Jannat, Xiaotian Wei, Vi Khanh Truong, Lei Bao, Ann Roberts, Chris F. McConville, Sumeet Walia, Nitu Syed, Torben Daeneke
Summary: In this report, a simple and cost-effective method is proposed to fabricate 2-nm-thick indium oxide nanosheets from liquid metal surfaces. The resulting materials exhibit high transparency and excellent electron mobility, surpassing other reported 2D semiconductors. The UV-detectors based on the fabricated indium oxide nanosheets also show improved performance compared to the original ones. The improvement is attributed to the nanostructural changes within the oxide layers during the annealing process, as demonstrated by transmission electron microscopy.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Engineering, Electrical & Electronic
Pargam Vashishtha, Pukhraj Prajapat, Anuj Sharma, Preetam Singh, Sumeet Walia, Govind Gupta
Summary: This study introduces a unique coco palm-like MoS2/GaN heterojunction-based self-powered photodetector that operates in the broadband spectral range and exhibits high responsivity at both room temperature and high operating temperatures. The device also has low-light detection abilities and opens up possibilities for monitoring optical radiations in various industrial processes.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Physics, Applied
Peter Francis Mathew Elango, Shanmuga Sundar Dhanabalan, Md Rokunuzzaman Robel, Sherly Pushpam Elango, Sumeet Walia, Sharath Sriram, Madhu Bhaskaran
Summary: Wearable electronic devices, especially for health monitoring, have made rapid advancements in recent years. This study focuses on the design and material of electrode in wearable electrocardiogram (ECG) sensors, and proposes a compact, lightweight, portable, gel-free wearable ECG patch. The results show that the ECG patch with a hexagonal labyrinth configuration has the best performance.
APPLIED PHYSICS REVIEWS
(2023)
Review
Physics, Applied
Dashen Dong, Shanmuga Sundar Dhanabalan, Peter Francis Mathew Elango, Mingjie Yang, Sumeet Walia, Sharath Sriram, Madhu Bhaskaran
Summary: This review provides an overview of the design principles, fabrication techniques, and various multifunctional and emerging applications of metal-oxide thin films in flexible and stretchable devices. The current challenges and future outlook are also discussed.
APPLIED PHYSICS REVIEWS
(2023)
Article
Chemistry, Physical
Pargam Vashishtha, Pukhraj Prajapat, Kapil Kumar, Mahesh Kumar, Sumeet Walia, Govind Gupta
Summary: The Sb2Se3/GaN heterostructure photodetector demonstrates excellent photoresponsivity and thermal stability, enabling it to detect optical radiation across a broad spectrum.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Sidra Farooq, Vaishnavi Krishnamurthi, Sumeet Walia, Gabriel Aygur, Enrico Della Gaspera, Joel Van Embden
Summary: A simple solution-based process is developed to generate pinhole-free BiI3 thin films with large crystal grains. By doping 2-methoxyethanol with small amounts of N-methyl-2-pyrrolidone, the crystallization kinetics can be carefully regulated to achieve high-quality thin films. The optimized BiI3 films show fast response times, high responsivities, and excellent sensitivity, making them suitable for optoelectronic devices.
ACS APPLIED NANO MATERIALS
(2023)
Article
Automation & Control Systems
Thiha Aung, Taimur Ahmed, Aishani Mazumder, Aaron Elbourne, Abhishek Ranjan, Nitu Syed, Torben Daeneke, Chung Kim Nguyen, Akram AI-Hourani, Sumeet Walia
Summary: Optoelectronic devices based on optically responsive materials have attracted attention for their low cross talk and reduced power consumption. However, a major drawback is the rapid decay of conductance states after light stimulus removal. To address this issue, a platform neural network scheme is proposed to restore the memory effect and enhance performance without additional energy-intensive techniques. Experimental validation using optoelectronic devices fabricated with different materials demonstrates the restoration of memory retention ability and its implications for practical applications.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Article
Automation & Control Systems
Taimur Ahmed, Vaishnavi Krishnamurthi, Arnan Mitchell, Sumeet Walia
Summary: The alluring properties of low-dimensional materials have greatly advanced brain-inspired electronics, leading to the development of highly efficient neuromorphic devices. This review critically examines the mechanisms in state-of-the-art low-dimensional neuromorphic devices and discusses the factors that influence their working paradigm under different stimuli. Furthermore, it provides a forward-looking outlook on the challenges and perspectives in analyzing these mechanisms to drive next-generation neuromorphic computing.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Article
Optics
Pargam Vashishtha, Ajit Dash, Kapil Kumar, Pukhraj Prajapat, Mahesh Kumar, Sumeet Walia, Govind Gupta
Summary: This study presents a high-performance photodetector based on antimony selenide, which exhibits fast and high response as well as thermal stability across a wide range of wavelengths. The findings provide insights for designing high thermal stability detectors and promoting the use of such materials in photodetector applications.
OPTICS AND LASER TECHNOLOGY
(2024)
