Article
Chemistry, Physical
Ting Hu, Zhi Xing, Lu Huang, Dengxue Li, Xiangchuan Meng, Xiaotian Hu, Yiwang Chen
Summary: To address the limitations of two-dimensional perovskites in photovoltaic applications, a strategy for developing high-quality patterned 2D perovskites was proposed. The patterned films showed improved light absorption and interfacial contact, leading to enhanced efficiencies and stability of the solar cells.
CHEMISTRY OF MATERIALS
(2022)
Article
Multidisciplinary Sciences
Woo Young Kim, Bo Wook Seo, Sang Hoon Lee, Tae Gyung Lee, Sin Kwon, Won Seok Chang, Sang-Hoon Nam, Nicholas X. Fang, Seok Kim, Young Tae Cho
Summary: A challenge in making a flexible mold stamp using roll-to-roll nanoimprint lithography is to increase area while minimizing perceptible seams. A method that enables the fabrication of scalable, quasi-seamless functional surfaces without the use of alignment marks is proposed. This method is capable of fabricating scalable functional surfaces and imprint molds with quasi-seamless and alignment mark-free patterning.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Dongjing Li, Aixia Wu, Qing Wan, Zeping Li
Summary: This strategy demonstrates a controllable method to fabricate polymeric nanowires with high throughput and low cost using thermal nanoimprint lithography (NIL) technique and self-assembled anodic aluminum oxide (AAO) template. The length of polymeric nanowires can be adjusted by the duration of thermal NIL, and the fill mechanism of thermoplastic intermediate polymer stamp (IPS) into AAO nanopores is essential for the preparation of SERS-active substrates. The approach shows potential for expanding the use of thermal NIL technique and AAO template for fabricating various nanomaterials, especially flexible and transparent polymer-based nanomaterials.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Multidisciplinary
Alejandra Jacobo-Martin, Jaime J. Hernandez, Patricia Pedraz, Ivan Navarro-Baena, Miguel A. Monclus, Jon M. Molina-Aldareguia, Isabel Rodriguez
Summary: This study presents a fabrication method for bioinspired moth-eye antireflective films using PVDF and TiO2 nanoparticles, which improves the mechanical and thermal stability of the films. Various tests were conducted to evaluate the optical performance and durability of the films, aiming to expand their potential for use in solar devices.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Chemistry, Physical
Jie Li, Jingjie Niu, Yongjae Kim, Heeyeop Chae
Summary: The wettability of amorphous carbon films was adjusted by controlling plasma fluorination. The surface fluorination was characterized by measuring the F/C atomic ratio using X-ray photoelectron spectroscopy. The relationship between the contact angle and F/C atomic ratio was investigated.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Abhaysinh Gaikwad, Salil Desai
Summary: Understanding the deformation behavior during nanoimprint lithography is crucial for high resolution patterning. Molecular dynamics modeling was used to investigate how different mold profiles affect von Mises stress, lattice dislocations, and material deformation. Higher stress was observed for spherical molds compared to rectangular and cylindrical molds. During mold penetration stage, stress increased for all mold geometries but reduced during relaxation and mold retrieval stages. The findings can aid in mold design for various applications.
Article
Chemistry, Physical
Russell J. Clarke, Jason C. Hicks
Summary: Nonthermal plasma activation of light alkanes is a promising decarbonization strategy, but the growth of carbon on catalysts and electrodes is a limitation. This study provides visual evidence of nonuniform diamond-like carbon microstructures formed in a coaxial dielectric barrier discharge reactor. The spacing of the microstructures can be controlled by adjusting the applied voltage or burning voltage of the plasma.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Analytical
Najmeh Karimian, Davide Campagnol, Massimo Tormen, Angela Maria Stortini, Patrizia Canton, Paolo Ugo
Summary: This study presents the preparation and electrochemical application of perfectly ordered arrays of glassy carbon nanoelectrodes (GC-NEAs). The voltammetric behavior of some redox mediators commonly used in enzymatic electrochemical biosensors on GC-NEAs was examined. GC-NEAs were fabricated by using nanoimprint lithography. The voltammetric signals recorded indicate that the here prepared GC-NEAs operate under total overlap diffusion conditions, with an accessible potential window significantly wider than the one typical of arrays of gold nanoelectrodes. Interestingly, the electrochemical behavior of the GC-NEAs perfectly fits with what expected on the basis of the geometrical features of the array demonstrating the role of these parameters in ruling the contribution of capacitive and faradic currents of the array which reflect in improved detection capabilities.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Sumanta Kumar Sahoo, Ravi Bolagam, Kripasindhu Sardar, Satoru Kaneko, Shih-Chen Shi, Kao-Shuo Chang, Masahiro Yoshimura
Summary: A new soft solution process has been developed for patterning diamond-like carbon (DLC) onto silicon substrates in ambient conditions. In this technique, pure ethanol is locally activated and anodically patterned onto the substrate with the assistance of submerged plasma. The physical and chemical properties of the DLC patterns were analyzed, and the technique was found to be promising for carbon-based electrode fabrication processes.
Article
Materials Science, Multidisciplinary
Jiawei Yao, Fuyao Yan, Hongtao Chen, Baofeng Chen, Mufu Yan, Yanxiang Zhang
Summary: A gradient composite layer consisting of a hardened nitrided layer and a self-lubricating DLC structure was fabricated on M50 steel surface via plasma-assisted thermochemical treatment. The layer showed functionally graded hardness profile and excellent wear resistance.
MATERIALS & DESIGN
(2022)
Article
Engineering, Electrical & Electronic
Hiroshi Tani, Renguo Lu, Shinji Koganezawa, Norio Tagawa
Summary: The formation of head smears during heat-assisted magnetic recording is a significant problem that needs to be addressed for ensuring the reliability of the head-disk interface. The study analyzed the effects of diamond-like carbon (DLC) films on magnetic disks in generating head smears through simulated heating experiments. It was found that DLC films with high hydrogen concentrations produced more decomposition gases during heating, and degradation of the films led to the formation of hydrocarbon gases.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2021)
Article
Materials Science, Ceramics
Yifeng Yu, Xin Zhang, Shengwen Yin, Lichun Bai, Zishun Liu
Summary: The mechanical properties and deformation mechanisms of diamond-like carbon (DLC) films were studied through molecular dynamics simulation. It was found that sp(2)-sp(3) transition led to the compressive failure of the films. The strength and ductility of the films were influenced by temperature and compression strain rate.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Multidisciplinary
Takashi Yanagishita, Takchiu Sou, Hideki Masuda
Summary: Flexible molds with micro-nano hierarchical structures were made using anodic porous alumina. These molds were used to create superhydrophobic micro-nano hierarchical surfaces on substrates with different curvatures using photo-nanoimprinting. The surfaces exhibited water contact angles exceeding 150 degrees.
Article
Materials Science, Ceramics
Kai-Hung Yang, Parand Riley, Keith B. Rodenhausen, Shelby A. Skoog, Shane J. Stafslien, Lyndsi Vanderwal, Roger J. Narayan
Summary: The surface properties and antifungal performance of oxygen plasma-treated Si-DLC were investigated in this study, showing that the material exhibited good antifungal capability and hydrophilic properties, making it potentially useful for preventing nosocomial infections.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Chemistry, Physical
Brijmohan Paramanik, Debajyoti Das
Summary: In this study, diamond-like carbon (DLC) films with well distinguished nanocrystalline diamond (NCD) grains embedded in the matrix were grown on glass substrates without any pre-treatment using a specially-designed stainless-steel shadow-mask assembly. The composition of the precursor gas and gas pressure in the plasma significantly influenced the relative composition of different carbon phases in the films. The optimum NCD embedded DLC film exhibited a homogeneous microstructure with uniform distribution of NCD grains and high optical transmittance.
APPLIED SURFACE SCIENCE
(2022)
Article
Biochemical Research Methods
Andrey Nazarov, Boris Knyazer, Tova Lifshitz, Mark Schvartzman, Ibrahim Abdulhalim
JOURNAL OF BIOMEDICAL OPTICS
(2017)
Article
Nanoscience & Nanotechnology
Guillaume Le Saux, Avishay Edri, Yossi Keydar, Uzi Hadad, Angel Porgador, Mark Schvartzman
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Physical
Viraj Bhingardive, Liran Menahem, Mark Schvartzman
Article
Chemistry, Multidisciplinary
Yossi Keydar, Guillaume Le Saux, Ashish Pandey, Edri Avishay, Netanel Bar-Hanin, Toledo Esti, Viraj Bhingardive, Uzi Hadad, Angel Porgador, Mark Schvartzman
Article
Chemistry, Multidisciplinary
David Tsivion, Mark Schvartzman, Ronit Popovitz-Biro, Ernesto Joselevich
Article
Chemistry, Multidisciplinary
Lior Goren-Ruck, David Tsivion, Mark Schvartzman, Ronit Popovitz-Biro, Ernesto Joselevich
Article
Chemistry, Multidisciplinary
Avichai Marcovici, Guillaume Le Saux, Viraj Bhingardive, Pazit Rukenstein, Kobi Flomin, Karam Shreteh, Roxana Golan, Taleb Mokari, Mark Schvartzman
Article
Engineering, Electrical & Electronic
M. Schvartzman, K. Nguyen, M. Palma, J. Abramson, J. Sable, J. Hone, M. P. Sheetz, S. J. Wind
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2009)
Article
Chemistry, Multidisciplinary
Mark Schvartzman, Matteo Palma, Julia Sable, Justin Abramson, Xian Hu, Michael P. Sheetz, Shalom J. Wind
Article
Multidisciplinary Sciences
Mark Schvartzman, David Tsivion, Diana Mahalu, Olga Raslin, Ernesto Joselevich
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2013)
Article
Multidisciplinary Sciences
David Tsivion, Mark Schvartzman, Ronit Popovitz-Biro, Palle von Huth, Ernesto Joselevich
Article
Chemistry, Multidisciplinary
Guillaume Le Saux, Netanel Bar-Hanin, Avishay Edri, Uzi Hadad, Angel Porgador, Mark Schvartzman
ADVANCED MATERIALS
(2019)
Article
Engineering, Electrical & Electronic
Dor Yehuda, Eviatar Kassis, Shay Joseph, Mark Schvartzman
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2018)
Article
Engineering, Electrical & Electronic
Liran Menahem, Mark Schvartzman
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2017)
Proceedings Paper
Nanoscience & Nanotechnology
Liran Menachem, Mark Schvartzman
NANOPHOTONIC MATERIALS XIII
(2016)