Review
Chemistry, Physical
Yimin Lu, Guojun Huang, Sai Wang, Chaowei Mi, Shangfang Wei, Fangtao Tian, Wei Li, Haiyuan Cao, Yong Cheng
Summary: Pulsed laser deposition is an excellent technology for growing diamond-like carbon films, with high hardness, chemical inertness, low friction, and superior wear resistance. Various parameters and conditions influence the properties of the films, while new techniques like double laser beam deposition and hybrid pulsed laser deposition are under development. Applications in tribology, mechanics, medicine, and optics are driving further research and advancement in this field.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Lucas K. Nolasco, Flavio P. Almeida, Gustavo F. B. Almeida, Juliana M. P. Almeida, Valmor R. Mastelaro, Kelly T. Paula, Cleber R. Mendonca
Summary: This paper focuses on studying the incubation process and the threshold fluence dependence on the fs-laser microstructuring of DLC films. Raman spectroscopy analysis indicates a decrease in sp(3) fraction and a more ordered phase after fs-laser processing of DLC samples.
Article
Materials Science, Multidisciplinary
S. M. Pimenov, E. V. Zavedeev, N. R. Arutyunyan, B. Jaeggi, B. Neuenschwander
Summary: This study focuses on the formation of high and low spatial frequency laser-induced periodic surface structures (LIPSS) on DLN and Ti-DLN films using femtosecond laser ablation. The effects of different laser parameters and film properties on the LIPSS formation are investigated. The presence of plasmonic effects, such as the superposition of high and low frequency LIPSS and the emergence of sinusoid-like structures, are discussed.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Physical
Sergei M. Pimenov, Evgeny Zavedeev, Beat Jaeggi, Josef Zuercher, Beat Neuenschwander
Summary: In this paper, we studied the formation of laser-induced periodic surface structures (LIPSS) on nanocomposite films at low fluences during nanoscale ablation processing. The study focused on microscopic analysis of the nanostructured film surface at different stages of LIPSS formation and numerical modeling of surface plasmon polaritons. Important findings include sub-threshold fabrication of high and low spatial frequency LIPSS, transition of LIPSS from high to low spatial frequency within a narrow fluence range, visualization of equi-field lines in the valleys and ridges of a growing surface grating, and influence of a laser-excited layer on the period of surface plasmon polaritons.
Article
Optics
M. S. Komlenok, N. R. Arutyunyan, C. Freitag, E. Zavedeev, A. D. Barinov, M. L. Shupegin, S. M. Pimenov
Summary: The study investigates the influence of tungsten doping on DLN films under different laser irradiation, finding that the ablation threshold and rate are influenced by laser wavelength and pulse width. Ablation threshold is insensitive to tungsten doping under UV laser, while it decreases and ablation rate increases under IR laser.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Sukhyun Kang, HyukSu Han, Sungwook Mhin, Hui Ra Chae, Won Rae Kim, Kang Min Kim
Summary: Transition-metal-doped carbon-based electrocatalysts have been studied as alternatives to noble metal electrocatalysts for OER, and a simple technique using pulsed laser ablation for preparing Ni-doped multi-walled carbon nanotubes as OER catalysts was reported. The Ni-MWCNTs showed excellent OER catalytic performance, initial electrocatalytic activity, and good electrochemical durability.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Rajkumar Dey, Shamima Hussain, Arun Kumar Pal
Summary: Diamond-like carbon (DLC) films were deposited using pulsed laser deposition technique with a glassy carbon disc as the carbon source. Boron doping in DLC films was achieved by ablating a boron disc during the synthesis process. The study found that boron doping significantly affected the structure and electrical properties of DLC films.
Article
Chemistry, Physical
Bakhtiar Ali, Han Xu, Dashavir Chetty, Robert T. Sang, Igor Litvinyuk, Maksym Rybachuk
Summary: The degree of laser-induced graphitization in single crystal chemical vapor deposited diamond was studied. The sp(3) phase transitions to sp(2) aromatic crystalline graphitic fraction below a critical fluence, above which amorphous carbon is formed. The increase in fluence leads to a significant increase in the depth of graphitized areas and cleavage of C=O bonds.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Dong Yeong Kim, Thomas J. Smart, Jochen Mannhart, Wolfgang Braun
Summary: This study investigates the use of thermal laser epitaxy (TLE) for growing carbon films on sapphire substrates. The results show that the crystallinity of carbon films can be controlled by the substrate temperature during growth. The study also characterizes the dependence of the growth rate on the power of the source-evaporating laser beam.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Chemistry, Physical
Stoffel D. Janssens, David Vazquez-Cortes, Burhannudin Sutisna, Eliot Fried
Summary: This novel approach presents a method for creating durable nanochannels by using a femtosecond laser to directly write optically accessible nanochannels. The dimensions of these nanochannels can be tuned by adjusting the laser pulse energy. The mechanism of nanostrip formation and the patterning of the film through laser writing are also investigated. The applicability of the laser-written nanochannels is demonstrated by fabricating a nanofluidic device that fills with water via capillary action.
Article
Materials Science, Multidisciplinary
Vladimir A. Plotnikov, Boris F. Dem'yanov, Sergey Makarov
Summary: The structural state of thin diamond-like carbon films was studied using high-resolution transmission microscopy. The film consists of diamond clusters with tetragonal lattice, bonded by sp(3) and sp(2) bonds. The film properties are determined by the dominance of diamond clusters, making it a good dielectric material.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Optics
Yu Zhao, Huagang Liu, Tianbiao Yu, Minghui Hong
Summary: This paper explores the application of femtosecond laser-manufactured diamond tools in microtexture processing, achieving different micro-cutting effects by controlling laser ablation parameters. These microarray diamond tools demonstrate higher flexibility and efficiency in microtexture processing.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Yimin Lu, Guojun Huang, Sai Wang, Lin Xi, Guanghu Qin, Jing Tan, Chaoyong Tan
Summary: The amorphous SiC layers and SiC buffer layers play essential roles in improving adhesive properties and reducing internal stress in the pulsed laser depositiongrown multilayer DLC coating, leading to better performance of the coating.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Ni Chen, Runkai Wang, Balasubramanian Nagarajan, Bo Yan, Yang Wu, Ning He, Sylvie Castagne
Summary: The study proposes a strategy of metal-coating-assisted laser ablation to improve the machining quality of diamond, and establishes a model to evaluate surface roughness and ablation depth. Laser ablation with coatings significantly reduces surface roughness of diamond while having minimal impact on ablation depth.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Multidisciplinary
Andrey A. A. Khomich, Vitali Kononenko, Oleg Kudryavtsev, Evgeny Zavedeev, Alexander V. V. Khomich
Summary: The use of ultrafast pulses in laser processing, including on diamonds, is currently popular. The orientation of the irradiated crystal face has recently been found to be important for the diamond to graphite transition process. In this study, a Ti:sapphire laser was used to produce highly oriented graphite layers on the (111) surface of a diamond monocrystal, and the structure of the graphitized material was analyzed using confocal Raman spectroscopy. The results show a correlation between laser ablation regimes and sp(2) phase structure, and provide insight into the optimal laser fluence for producing perfect graphite spots on the diamond surface.
Article
Biotechnology & Applied Microbiology
Sanaz Behtaj, Fereshteh Karamali, Elahe Masaeli, Yuri G. Anissimov, Maksym Rybachuk
Summary: This study investigates the impact of different polyester-based biopolymer materials blended with PCL on the attachment and proliferation of RPCs, revealing that PGS/PCL scaffolds promote RPC attachment and proliferation more favorably compared to other blends, showing potential for future clinical therapy for retinal degenerative disorders.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Biomedical
Sanaz Behtaj, Fereshteh Karamali, Samaneh Najafian, Elahe Masaeli, Mohammad-Hossein Nasr Esfahani, Maksym Rybachuk
Summary: Stem cell-based retinal ganglion cells (RGCs) replacement therapy shows potential for restoring vision in glaucoma by replacing degenerated RGCs and facilitating axonal regeneration. However, generating clinically safe and functional RGCs that can integrate into hosts' retinas remains a challenge. The use of PGS/PCL scaffold in differentiation of hESCs into RGC-like cells promotes cell differentiation and neurite growth, contributing to potential future clinical therapy for glaucoma treatment.
ACTA BIOMATERIALIA
(2021)
Article
Engineering, Electrical & Electronic
Paige Mary Pamela Khouri, Michael Joseph Walsh, Christoph Brandl, Maksym Rybachuk
Summary: The automated electrical cable harness testing system presented is capable of testing diverse cable harness configurations, improving testing efficiency and reducing operator's learning time. It detects faults accurately and communicates them comprehensively, surpassing traditional testing and measurement systems.
MICROELECTRONICS RELIABILITY
(2021)
Review
Chemistry, Physical
Bakhtiar Ali, Igor V. Litvinyuk, Maksym Rybachuk
Summary: Ultra-fast femtosecond lasers offer a unique technological opportunity for precise and efficient micromachining, with minimal thermal damage. The application of fs-laser technology in micromachining diamond shows promising prospects but also faces challenges and opportunities for further development.
Article
Multidisciplinary Sciences
Maryam Zarghami Dehaghani, Farrokh Yousefi, Farzad Seidi, Babak Bagheri, Amin Hamed Mashhadzadeh, Ghasem Naderi, Amin Esmaeili, Otman Abida, Sajjad Habibzadeh, Mohammad Reza Saeb, Maksym Rybachuk
Summary: The study explores the use of single-walled carbon nanotubes as drug delivery cargo systems by modeling the encapsulation process of Isatin. It shows that Isatin can be stably encapsulated inside the carbon nanotubes, demonstrating its potential for drug delivery applications.
SCIENTIFIC REPORTS
(2021)
Review
Cell Biology
Sanaz Behtaj, James A. St John, Jenny A. K. Ekberg, Maksym Rybachuk
Summary: The peripheral nervous system is unable to regenerate effectively after severe injury. Recent research in neural tissue engineering offers promising solutions using fibrous tissue-engineered scaffolds to enhance tissue regeneration and functional recovery. However, the design and regulation of neuron-scaffold interactions in the extracellular matrix environment present challenges for successful implementation of scaffold-based therapeutic approaches.
NEURAL REGENERATION RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Jarred W. Fastier-Wooller, Trung-Hieu Vu, Hang Nguyen, Hong-Quan Nguyen, Maksym Rybachuk, Yong Zhu, Dzung Viet Dao, Van Thanh Dau
Summary: This paper presents a highly versatile, low-cost, and robust tactile sensor that utilizes a poly(vinylidene fluoride-co-trifluoroethylene) [P(VDF-TrFE)] micronanofiber element for measuring load under static and dynamic modes. The sensor exhibits reliable and consistent measurement performance and solves surface contact issues using an in situ electrospinning fabrication method.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Bakhtiar Ali, Han Xu, Dashavir Chetty, Robert T. Sang, Igor Litvinyuk, Maksym Rybachuk
Summary: The degree of laser-induced graphitization in single crystal chemical vapor deposited diamond was studied. The sp(3) phase transitions to sp(2) aromatic crystalline graphitic fraction below a critical fluence, above which amorphous carbon is formed. The increase in fluence leads to a significant increase in the depth of graphitized areas and cleavage of C=O bonds.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Shi Bai, Anming Hu, Youjin Hu, Ying Ma, Kotaro Obata, Koji Sugioka
Summary: Surface-enhanced Raman scattering (SERS) is a valuable technique for trace detection in biosensing and environmental monitoring. In this paper, a new technique based on laser near-field reduction is developed to fabricate a superstructure array with controlled localized surface plasmon resonance (LSPR) energy. The fabricated array offers flexible tuning of the LSPR and increased sensitivity for SERS sensing.
Review
Optics
Victor L. Lagunov, Maksym Rybachuk, Anut Itthagarun, Laurence J. Walsh, Roy George
Summary: This systematic review assessed the effectiveness and impact of femtosecond (fs) laser irradiation for surface processing of enamel and dentine. The results showed that fs laser pulses can accurately and precisely ablate dental enamel and dentin with minimal thermal effects. However, further optimization of laser parameters is needed for precise and minimally invasive restorative procedures.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Bakhtiar Ali, Han Xu, Robert T. Sang, Igor V. Litvinyuk, Maksym Rybachuk
Summary: The optimal conditions for converting the tetrahedral sp3 phase of diamond into an aromatic sp2 phase with high crystallinity were investigated using an ultra-short femto-second pulsed laser. The highest conversion efficiency was achieved at an energy density of 1.2 J/cm2 and 32,000 pulses. The results also showed the formation of carbyne and carbonyl bonds during the phase transition.
Article
Chemistry, Multidisciplinary
Pouyan Bagheri, Ivan Gratchev, Maksym Rybachuk
Summary: The application of sustainable engineering methodologies is becoming increasingly necessary due to the rising number of environmental hazards caused by global warming. Traditional cement, a common additive for soil improvement, has negative impacts on the environment, creating a need for alternative sustainable solutions. This study focuses on investigating the effectiveness of xanthan gum biopolymer as a sustainable solution for enhancing soil properties. The results demonstrate that the addition of xanthan gum improves soil strength and plasticity, with increased concentration and curing time leading to increased compressive strength. The biopolymer-treated soil also exhibits higher strength and cohesion compared to untreated soil, especially during wetting and drying cycles.
APPLIED SCIENCES-BASEL
(2023)
Article
Polymer Science
Pouyan Bagheri, Ivan Gratchev, Suwon Son, Maksym Rybachuk
Summary: In order to mitigate the environmental effects of conventional materials in soil improvement, the use of biopolymers, such as lignin, as an environmentally friendly alternative has been studied. The addition of lignin to soil improved its physical and strength characteristics, such as compressive strength and soil cohesion. The lignin-treated samples displayed higher erosion resistance and less strength loss during wetting and drying cycles, making it a useful solution for engineering applications.
Article
Chemistry, Multidisciplinary
Yongchao Yu, Pooran Joshi, Denzel Bridges, David Fieser, Anming Hu
Summary: This paper reports multileveled resistance states of tellurium (Te) nanotube based on the clean-room free femtosecond laser nano-joining method, providing a new approach for fabricating high-quality and stable memristors.
Review
Materials Science, Multidisciplinary
Denzel Bridges, David Fieser, Jannira J. J. Santiago, Anming Hu
Summary: It is believed that high-entropy alloys (HEAs) have great potential in cryogenic and aerospace applications. However, there is still much to be explored due to the vast design space available for HEAs. This review focuses on four less addressed areas of HEA applications, including joining technologies, HEA nanomaterial synthesis, catalysis, and marine applications. The performance of HEAs as filler metals and base metals in welding and brazing is discussed, along with various methods for synthesizing HEA nanomaterials and their applications in catalysis and energy storage. Furthermore, the corrosion resistance and antifouling properties of HEAs make them intriguing materials for marine applications.
Article
Materials Science, Multidisciplinary
Shuanghui Zeng, Xue Wang, Yunqian Zhang, Jiaojing Shao, Zhao Ding, Jie Zhao
Summary: A free-standing 3D core/shell composite material CNTs@Co9S8 on nickel mesh has been prepared using a simple two-step method. The composite material exhibits excellent conductivity and charge storage capability, making it a promising candidate for supercapacitor applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Marieta Belcheva, Georgi Georgiev, Boyko Tsyntsarski, Urszula Szeluga, Lyudmila Kabaivanova
Summary: This study successfully prepared new antibacterial materials by combining activated carbon with metal nanoparticles, taking advantage of the well-known antibacterial activity of metal nanoparticles. The obtained composites exhibited strong antibacterial effects against E. coli and S. aureus, with the antibacterial activity depending on the contact time, bacterial species, nature of the metal, and metal concentration. The findings provide novel materials with antibacterial properties for further development and potential application in hygiene devices.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
V. P. Madhurima, Kusum Kumari, P. K. Jain
Summary: In this study, carbon nanomaterials were synthesized using the arc discharge technique, with a focus on optimizing process parameters to improve yield and quality. The materials were characterized using various analytical tools, and their dye adsorption capabilities were evaluated. The results showed that carbon soot had better adsorption performance compared to carbon nanotubes, indicating the potential of these carbon nanomaterials for environmental remediation applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaolong Sun, Bo Cui, Pingping Liang, Qimeng Liu, Nan Gao, Hongdong Li
Summary: This study explores the potential of hafnium (Hf) terminated diamond surfaces in achieving negative electron affinity (NEA). By using swarm-intelligence structural search and first-principles calculations, the researchers found that Hf-terminated diamond surfaces exhibit stable NEA properties and high thermal stability, making them promising candidate materials for electron emission applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
N. Soltani, N. Tavakkoli, E. Eslami, L. S. Mirmohammadi
Summary: In this project, a carbon paste electrode modified with graphene and ZnFe2O4 spinel nanoparticles (Gr/ZnFe2O4/CPE) was used to measure naproxen, and various electrochemical methods were used to investigate its behavior. By optimizing the parameters, good measurement results were obtained.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xiwei Cui, Yue Qin, Xin Han, Huanyi Chen, Xinxin Ruan, Hui Zhang, Chengcheng Jiao, Rongqi Mao, Jinglin Hao, Sizhuang Zhao, Shuai Hou, Xiaoxuan Pian, Yandong Wang, Kazuhito Nishimura, Lifen Deng, Nan Jiang
Summary: This paper investigates the friction and wear behaviors of two types of polycrystalline diamonds against different materials. The results show that increasing surface roughness leads to an increase in coefficient of friction. The coefficient of friction and wear rate of ceramic Si3N4 balls are generally lower than those of steel GCr15 balls, except for one type of polycrystalline diamond. Transfer films of SiO2 and its hydrate are observed at the friction interface, which contribute to smoother friction and wear. Carbon-based transfer films are also identified, mainly catalyzed by residual cobalt in the polycrystalline diamonds, leading to a phase transformation.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Menglei Sun, Pengjun Li, Mao Wang, Yidan Liang, Xudong Yang, Shujie Pang
Summary: In this study, carbonized polymer dots were synthesized by a one-step hydrothermal method, and silver nanoclusters were synthesized by UV lamp irradiation. They were then self-assembled by electrostatic force to prepare a dual-emission fluorescent nanocomposite that responds to temperature changes. The nanocomposite showed two emission peaks and exhibited excellent linearity between 20°C and 80°C.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Mohamed J. Saadh, Durgesh Singh, Diego Mayorga, Anjan Kumar, Maria Albuja, Ahmad Ismael Saber, Mohammed Ahmed Mustafa, Yasser Elmasry, Noubu Sun
Summary: Based on density functional theory, it is found that the C3N monolayer has good adsorption capability for Hg0 and a short recovery time. This study suggests that the C3N monolayer is a promising adsorbent material for efficient control of gaseous mercury.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Rajendra Kumar Nare, Sivalingam Ramesh, Vijay Kakani, Yuvaraj Haldorai, Chandrasekaran Karthikeyan, Basivi Praveen Kumar, Nadavala Siva Kumar, Mohammad Asif, S. Naresh Kumar, D. Prakash Babu, K. Ramakrishna Reddy, Visweswara Rao Pasupuleti
Summary: This study examines the latest advancements in carbon nanotube (CNT) supercapacitors and related composites, aiming to identify strategies for enhancing their performance. The researchers used ultrasonication aided hydrothermal technique to synthesize a composite made of nitrogen doped carbon nanotubes and porous NiCo2O4 nanomaterial. The composite electrode exhibited excellent cycling stability and a rising specific capacitance, making it appealing for high-performance supercapacitor applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
D. Mary Deena, S. Arockia Anushya, A. Dhanusha, T. C. Sabari Girisun, A. Philominal
Summary: A single-beam Z-Scan experiment was conducted to investigate the nonlinear optical absorption and optical limiting properties of Bi2O3, rGO/Bi2O3, Bi2O3/WO3, and rGO/Bi2O3/WO3 nanostructures. The results showed that the synthesized nanostructures exhibited varying levels of nonlinear absorption, with bismuth-based nanostructures showing the lowest optical limiting threshold and a higher two-photon absorption coefficient. The presence of rGO contributed to the extended conjugation for charge transfer, while the strong UV-Visible absorption of Bi2O3 and WO3 led to a unique nonlinear optical response.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Weibing Guo, Yiren Hu, Tao Wang, Xiaoguang Chen
Summary: This study investigated the microstructure and forming mechanism of graphite/copper joints that were brazed using Ti-containing filler. The results showed that increasing the brazing temperature improved the heat transfer and tensile properties of the composites. Additionally, the composites exhibited high heat flux and faster heating rate compared to copper and aluminum.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ming Li, ZhiWen Wang, Yu Teng, Hongyu Zhao, Bowei Li, Yang Liu, Shengxue Wang, Zhenze Yang, Liangchao Chen, Hongan Ma, Xiaopeng Jia
Summary: In the experiment, different Ni-content catalysts were used to synthesize diamond crystals, and the properties of the synthesized diamonds were analyzed. The results revealed that the Ni content in the catalyst affects the crystallinity of diamond crystals and the nitrogen crystallinity. The photoluminescence spectroscopy also showed that the diamond synthesized by using Fe-containing catalyst has specific NV-color center structure.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ling-Feng Mao
Summary: This study proposes an LSTM model to predict the work function of adsorbed metal atoms on graphene, which can quickly screen surface structures with target work function, saving computing and time costs, and improving device performance.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Runzhou Xu, Yinshui Liu, Qian Cheng, Zhenyao Wang, Kai Ma, Peiling Ke, Yipan Deng
Summary: The wear resistance of 17-4PH stainless steel was significantly improved by depositing multi-layered Cr/CrC/DLC coating at wide temperature range. The coating exhibited excellent lubrication and protective properties, and the wear mechanism changed with increasing temperature. The tribochemical reaction during the wear process played a crucial role in the graphitization transformation and friction properties of the coating.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xilong Guo, Jiaxin Song, Shanling Wang, Li Lei, Omololu Odunmbaku, Ayoub Taallah, Yi He, Aiqun Gu, Filippo S. Boi
Summary: The recent observations of superconductive-ordering in carbon-based systems consisting of rhombohedral stacking-faults, trilayer graphene (ABC-stacks) or dislocation-rich interfaces (pyrolytic graphite) have attracted significant attention. In this study, an unusual nucleation of rhombohedral stacking-faults in low-dimensional systems comprising of multiwall carbon nanotube (CNT) buckypapers was reported. The presence of sulfur doping resulted in a broad-band at the Raman shift from 1800 to 2000 cm(-1), indicating contributions arising from disorder-rich regions with rhombohedral stacking-order (ABC-stacks). These observations were further supported by X-ray diffraction and Rietveld refinements.
DIAMOND AND RELATED MATERIALS
(2024)
