Article
Chemistry, Multidisciplinary
Yuya Murai, Shaochun Zhang, Takato Hotta, Zheng Liu, Takahiko Endo, Hiroshi Shimizu, Yasumitsu Miyata, Toshifumi Irisawa, Yanlin Gao, Mina Maruyama, Susumu Okada, Hiroyuki Mogi, Tomohiro Sato, Shoji Yoshida, Hidemi Shigekawa, Takashi Taniguchi, Kenji Watanabe, Ruben Canton-Vitoria, Ryo Kitaura
Summary: A simple and direct method has been developed for controlled postdoping of 2D transition metal dichalcogenides using low-kinetic-energy dopant beams and high-flux chalcogen beams. The doped TMDs showed significant changes in electronic properties, with p-type action and a drastic increase in current. Position-selective doping was also demonstrated using a patterned mask on the surface, showing the versatility of this postdoping method for future 2D-based electronics.
Article
Nanoscience & Nanotechnology
Minglei Sun, Michele Re Fiorentin, Udo Schwingenschlogl, Maurizia Palummo
Summary: Semiconducting two-dimensional materials with the chemical formula MoSi2X4 (X = N, P, or As) were studied using atomistic simulations. It was found that MoSi2X4 has promising optical properties, such as the absence of lateral valleys, small exciton binding energies, and long radiative lifetimes, making it suitable for applications in optoelectronic devices.
NPJ 2D MATERIALS AND APPLICATIONS
(2022)
Review
Crystallography
Hui Chen, Jiwei Zhang, Dongxiao Kan, Jiabei He, Mengshan Song, Jianhua Pang, Songrui Wei, Kaiyun Chen
Summary: This review discusses the phase structures and phase transition properties of two-dimensional materials graphene and transition metal dichalcogenides (TMDs). It explores the various methods to trigger phase transitions and highlights the future opportunities and challenges in this field.
Article
Chemistry, Physical
Yingwei Wang, Li Zhou, Mianzeng Zhong, Yanping Liu, Si Xiao, Jun He
Summary: The emerging subclass of noble-transition-metal dichalcogenides (NMDs) has sparked an increase in research on two-dimensional (2D) materials, featuring unique structures and useful properties. These 2D NMDs are promising candidates for a wide range of applications in optics, with discussions on their research status, structures, properties, synthesis, and potential applications, as well as insights into expected future developments.
Review
Chemistry, Multidisciplinary
Carlo Bradac, Zai-Quan Xu, Igor Aharonovich
Summary: This article discusses the importance of van der Waals semiconductors in energy and charge transfer processes in donor-acceptor systems, as well as the role of two-dimensional materials in this field. It presents some significant experiments that deepen our understanding of transfer dynamics and looks into future challenges and opportunities.
Review
Crystallography
Mingyue Zhao, Yurui Hao, Chen Zhang, Rongli Zhai, Benqing Liu, Wencheng Liu, Cong Wang, Syed Hassan Mujtaba Jafri, Aamir Razaq, Raffaello Papadakis, Jiangwei Liu, Xiaoling Ye, Xiaoxiao Zheng, Hu Li
Summary: This review provides a comprehensive summary of the recent advances in 2D materials for optoelectronic approaches, including morphology and structure, optical properties, synthesis methods, and detailed applications. The challenges and perspectives in the current development of 2D materials are also discussed, providing a reference for further explorations and innovations of optoelectronic devices based on 2D materials.
Article
Multidisciplinary Sciences
Yunfan Guo, Yuxuan Lin, Kaichen Xie, Biao Yuan, Jiadi Zhu, Pin-Chun Shen, Ang-Yu Lu, Cong Su, Enzheng Shi, Kunyan Zhang, Changan HuangFu, Haowei Xu, Zhengyang Cai, Ji-Hoon Park, Qingqing Ji, Jiangtao Wang, Xiaochuan Dai, Xuezeng Tian, Shengxi Huang, Letian Dou, Liying Jiao, Ju Li, Yi Yu, Juan-Carlos Idrobo, Ting Cao, Tomas Palacios, Jing Kong
Summary: This research introduces a new method for atomic-layer substitution at room temperature, resulting in Janus monolayer transition metal dichalcogenides with vertical dipole. The method can also be used to create multiheterostructures with different crystal symmetry and electric polarization. Experimental results demonstrate high fidelity in the precise single atomic layer conversion achieved with this new approach.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Multidisciplinary
Hao-Yu Lan, Yu-Hung Hsieh, Zong-Yi Chiao, Deep Jariwala, Min-Hsiung Shih, Ta-Jen Yen, Ortwin Hess, Yu-Jung Lu
Summary: Monolayer transition metal dichalcogenides have low total absorption of photons, hindering the realization of high-performance optoelectronic functionalities. Gate-tunable plasmonic photoFETs show potential for enhancing photoresponsivity and photocurrent in monolayer MoS2, providing a systematic methodology for designing ultrathin plasmon-enhanced photodetectors for future compact optoelectronic devices.
Review
Chemistry, Physical
Senfeng Zeng, Zhaowu Tang, Chunsen Liu, Peng Zhou
Summary: This article discusses the use of 2D materials in the traditional semiconductor industry to maintain development through More Moore and More than Moore pathways, emphasizing the importance of these materials in achieving higher performance and functional diversity in electronic systems.
Review
Chemistry, Physical
Wenshuo Xu, Yuxuan Ke, Zhuo Wang, Wenjing Zhang, Andrew Thye Shen Wee
Summary: This article provides a comprehensive overview of metallic two-dimensional materials and the key factors that dictate their structures and properties. The phase transitions induced by structural or electronic modifications, as well as the influences of lattice defects, dopants, and intercalated species between adjacent layers, are examined using microscopic imaging, spectral characterization, and electrical measurements. The discussion on heterostructures involving highly conductive 2D components and potential new applications like radio-frequency antennas and electromagnetic interference shields offer insights into the future development of these materials.
SURFACE SCIENCE REPORTS
(2021)
Article
Multidisciplinary Sciences
Zhengyang Cai, Yongjue Lai, Shilong Zhao, Rongjie Zhang, Junyang Tan, Simin Feng, Jingyun Zou, Lei Tang, Junhao Lin, Bilu Liu, Hui-Ming Cheng
Summary: The study introduces a new 'dissolution-precipitation' (DP) growth method, which controls the supply of reactants by sealing metal sources in glass substrates, resulting in highly uniform and clean monolayer TMDCs through surface reactions.
NATIONAL SCIENCE REVIEW
(2021)
Review
Nanoscience & Nanotechnology
Ching-Hsueh Chiu, Yu-Ting Chen, Ji-Lin Shen
Summary: Zero-dimensional transition metal dichalcogenides (TMD) quantum dots (QDs) have attracted attention due to their fundamental properties and applications. This review highlights recent progress on synthesis, optical properties, and applications of TMD QDs, including synthesis methods, optical absorption, photoluminescence, and optoelectronic devices. The importance of TMD QDs in optoelectronic applications is emphasized.
Review
Chemistry, Multidisciplinary
Jiajing Wu, Jing Peng, Haofeng Sun, Yuqiao Guo, Hongfei Liu, Changzheng Wu, Yi Xie
Summary: Intercalation chemistry plays a crucial role in solid-state physics and chemistry, enabling the modulation of electronic structures and the construction of new materials with unique properties. It has gained popularity in recent years in the synthesis and regulation of 2D transition metal dichalcogenides (TMDs), which have extensive applications in electronics, optoelectronics, and energy-based devices. In this review, the authors provide a comprehensive overview of recent advances in intercalation exfoliation of 2D TMD materials, focusing on the interactions between the host, guest, and solvent. The effect of intercalation chemistry on the synthesis and modification of TMD nanosheets is discussed, considering lattice strain, interlayer distance, and carrier density. The review concludes with a prospectus on future research opportunities in the intercalation chemistry of 2D materials.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Scott Stonemeyer, Mehmet Dogan, Jeffrey D. Cain, Amin Azizi, Derek C. Popple, Austin Culp, Chengyu Song, Peter Ercius, Marvin L. Cohen, Alex Zettl
Summary: Fine control over material synthesis on the nanoscale has allowed for the selective creation of one-dimensional TaTe3 chains or two-dimensional TaTe2 nanoribbons using carbon nanotube reaction vessels. This control extends to the number of chains or the thickness and width of nanoribbons. Transmission electron microscopy and scanning transmission electron microscopy provide detailed atomic structure of the encapsulated materials, revealing complex superstructures such as multichain spiraling and multilayer moire patterns.
Article
Chemistry, Physical
Yuqing Li, Yuyan Zhao, Xiaoqian Wang, Wanli Liu, Jiazhen He, Xuemin Luo, Jinfeng Liu, Yong Liu
Summary: By regulating the growth conditions, we achieved the growth of large-size films of single atomic layers with thicknesses of only about 1 nm. Our method is effective for the growth of large-area films with universal applicability.
Article
Chemistry, Analytical
Yi Xu, Waqas Ahmad, Md Mehedi Hassan, Huanhuan Li, Qin Ouyang, Quansheng Chen
Summary: A novel g-C3N4 nanosheets-assisted upconversion fluorescent aptasensor was developed for Staphylococcus aureus detection using hybridization chain reaction (HCR). The presence of S. aureus activated the HCR system and resulted in a decrease in peroxidase-like activity of g-C3N4 nanosheets and fluorescence recovery proportional to the concentration of S. aureus. The method showed acceptable recoveries in real food samples and was validated by a traditional plate counting method.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Baoning Wang, Waqas Ahmad, Quansheng Chen, Qin Ouyang
Summary: A sensitive fluorescence nanosensor was developed for the detection of nitrite in pickled meat products, offering rapid detection and low detection limits.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Review
Chemistry, Multidisciplinary
Waqas Ahmad, Jiang Wu, Qiandong Zhuang, Arup Neogi, Zhiming Wang
Summary: This review presents the latest developments in fabricating broadband photodetectors based on conventional 2D transition metal dichalcogenides (TMDCs). It focuses on the recent progress in group-10 TMDCs in terms of lattice structure and synthesis techniques. The review also discusses the applications of group-10 TMDCs in nanoelectronics and optoelectronics, and provides perspectives for next-generation broadband photodetectors.
Article
Chemistry, Multidisciplinary
Usman Khan, Adeela Nairan, Karim Khan, Sean Li, Bilu Liu, Junkuo Gao
Summary: A low-temperature salt-assisted chemical vapor deposition method was used to grow single-domain Bi2O2Se on a millimeter scale with multilayer to monolayer thickness. The layer-dependent Raman spectroscopy of Bi2O2Se was systematically investigated, showing a redshift of the A(1g) mode at 162.4 cm(-1). The environmental stability of approximately 2.4 nm thick Bi2O2Se was confirmed after exposure to air for 1.5 years. The backgated field effect transistor based on a few-layered Bi2O2Se exhibited decent carrier mobility (approximately 287 cm(2) V(-1)s(-1)) and an ON/OFF ratio of up to 10(7), indicating a technique for growing large-domain thickness controlled Bi2O2Se single crystals for electronics.
Article
Energy & Fuels
Shammas Mushtaq, Sofia Tahir, Arslan Ashfaq, Ruy Sebastian Bonilla, Muhammad Haneef, Rabia Saeed, Waqas Ahmad, Nasir Amin
Summary: This study reports a modeling-guided device optimization process to design highly efficient lead-free n-i-p methyl ammonium tin bromide (MASnBr3) perovskite solar cells. The influence of different parameters on the performance of MASnBr3 devices is thoroughly investigated using numerical simulations. An optimized device structure is proposed, showing the potential of MASnBr3 as a nontoxic perovskite for renewable energy.
Review
Chemistry, Physical
Linghua Jin, Yabin Hao, Ayesha Khan Tareen, Karim Khan, Swelm Wageh, Omar A. Al-Hartomy, Abdullah G. Al-Sehemi, Han Zhang, Ye Zhang
Summary: As the heaviest chalcogen atom, tellurium (Te) has high thermoelectric properties and has been extensively studied as an ideal thermoelectric element. However, the instability and mechanical endurance of Te thermoelectric modules in flexible electronic devices are a concern. A recent strategy of combining nanostructured Te with flexible polymers has been developed to address these issues, providing a promising approach for constructing stable and efficient thermoelectric generators.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Engineering, Environmental
Waqar Ahmad, Muhammad Zubair, Mahmood Ahmed, Muhammad Ahmad, Shoomaila Latif, Abdul Hameed, Qudsia Kanwal, Dure Najaf Iqbal
Summary: The generation of solid waste is increasing due to rapid urbanization and industrialization, and the leachate leakages from landfills pose a threat to human health. This study analyzed the composition of metals and metalloid in soil samples using inductively coupled plasma-optical emission spectrometric studies. The results showed that the levels of metals in the soil were within the permissible limits set by international standards. However, soil contamination with mercury and cadmium posed an ecological risk. Children were found to have the highest exposure to metals through soil, and the cancer risk for chromium was observed to be at the lower edge.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Chemistry, Applied
Xiaodan Ding, Waqas Ahmad, Jizhong Wu, Yawen Rong, Qin Ouyang, Quansheng Chen
Summary: An ultrasensitive detection strategy for ciprofloxacin (CIP) has been developed using copper ions-induced charge transfer in poly acrylic acid (PAA) functionalized upconversion nanoparticles (UCNPs)/2,2-bipyridine (bipy) system. Copper ions adhere to the surface of PAA-UCNPs, deactivating fluorescence, while bipy controls aggregation. CIP coordinates with the bipy-Cu complex, causing the release of trapped fluorescence. The method shows a good calibration plot (0.05-1000 ng/mL) and a detection limit of 0.13 ng/mL.
Article
Chemistry, Applied
W. Ahmad, E. H. Aljuhani, H. Alwael, E. A. Assirey, H. M. Nassef, M. S. El-Shahawi
Summary: The electrochemical behavior and adsorption properties of food colorant erythrosine b (E127) were investigated and a sensitive analysis method was developed. The energy levels, absorption, and redox potentials of E127 were determined using computational methods. Experimental results validated the proposed redox mechanism and allowed for the detection of E127 in various samples.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Review
Oncology
Muhammad Asif Ali, Noohela Khan, Nabeeha Kaleem, Waqas Ahmad, Salem Hussain Alharethi, Bandar Alharbi, Hassan H. Alhassan, Maher M. Al-Enazi, Ahmad Faizal Abdull Razis, Babagana Modu, Daniela Calina, Javad Sharifi-Rad
Summary: Sulforaphane is an isothiocyanate with diverse biomedical applications. It can be extracted from plants, with broccoli sprouts being the richest source. This review paper aims to summarize the mechanisms behind sulforaphane's anticancer potential, concluding that it alters epigenetic and non-epigenetic pathways for cancer protection. Further research is needed for standard dosing.
FRONTIERS IN ONCOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Usman Khan, Adeela Nairan, Shafaq Naz, Xusheng Wang, Karim Khan, Ayesha Khan Tareen, Dang Wu, Junkuo Gao
Summary: This study demonstrates the significant impact of manganese (Mn) doping on the magnetic and optical properties of cobalt ferrite. The hydrothermal approach was used to synthesize CoMnxFe2_xO4 nanostructures. The crystal structure analysis confirmed a typical cubic structure. The magnetic and optical properties of the nanostructures were characterized through various techniques.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Yao Zhu, Yingying Liu, Karim Khan, Gulzira Arkin, Ayesha Khan Tareen, Zhongjian Xie, Tianzhen He, Lili Su, Fengjuan Guo, XiaoShu Lai, Jinfeng Xu, Jianglin Zhang
Summary: Ultrasound is a safe external stimulation method that is non-invasive, non-toxic, and free from radiation pollution, making it ideal for various biomedical applications. Its ability to penetrate deep tissues makes it increasingly attractive for cancer therapy. The development of nanomaterials and the study of emerging cancer therapeutic modalities triggered by ultrasound, such as high intensity-focused ultrasound therapy, sonodynamic therapy, and US-mediated drug delivery, are also on the rise.
MATERIALS TODAY ADVANCES
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Hasnain, Zaka Ullah, Nazmina Imrose Sonil, Waqas Ahmad, Adnan Khalil, Syed Mansoor Ali, Ghulam M. Mustafa, Muhammad Faizan Nazar, Syed Awais Rouf, Namra Shamain, Karim Khan
Summary: This paper reports the fabrication of a strain sensor based on the graphite-on-paper strategy. The graphene coating on a cellulose paper is achieved by direct drawing method and its structural and optical features are investigated. The fabricated sensor demonstrates a high sensitivity and a linear response to bending strain. The sensor shows potential applications in advanced security systems. Evaluation: 8 points.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Engineering, Environmental
Waqas Ahmad, Sajid Ullah, Imtiaz Ahmad, Taj Muhammad, Yu Shuang Ren, Muhammad Ilyas
Summary: This article describes the synthesis of graphene oxide (GO) from fish scales and its application for removing organic contaminants from refinery wastewater. Characterization using XRD, FTIR, SEM, and EDX analysis showed that the synthesized GO had a consistent structure. The GO exhibited a rough, porous, and layered morphology similar to two-dimensional sheets of GO. The adsorption process of the adsorbent followed a pseudo-2nd order kinetic model and maintained high efficiency over multiple cycles.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2023)
Review
Chemistry, Physical
Karim Khan, Ayesha Khan Tareen, Muhammad Iqbal, Iftikhar Hussain, Asif Mahmood, Usman Khan, Muhammad Farooq Khan, Han Zhang, Zhongjian Xie
Summary: This article presents the synthesis, properties, and applications of two-dimensional MXene materials. The diverse surface terminations of MXenes enable their wide range of applications in energy storage, catalysis, electronics, and biomedical fields. Researchers have evaluated these materials and proposed future research objectives.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
