Article
Chemistry, Multidisciplinary
Henning J. Meteling, Florian Bosse, Lisa Schlichter, Bonnie J. Tyler, Heinrich F. Arlinghaus, Bart Jan Ravoo
Summary: This article presents a method for imprint lithography using low molecular weight arylazoisoxazoles photoswitches, which can exhibit rapid and reversible solid-to-liquid phase transition at room temperature, making them suitable for reversible surface functionalization.
Article
Engineering, Geological
Langping Li, Hengxing Lan, Alexander Strom, Renato Macciotta
Summary: This paper proposes a new method for measuring path-dependent landslide geometry parameters and discusses the existing nomenclature. A case study demonstrates the effectiveness of the proposed method in measuring path-dependent parameters, which can differ significantly from path-independent parameters.
Article
Nanoscience & Nanotechnology
Amin Farhadi, Theresa Bartschmid, Gilles R. Bourret
Summary: In this study, thermal dewetting was used to structure gold-based catalytic etching masks for metal-assisted chemical etching (MACE). The approach involved low-temperature dewetting of metal films to generate metal holey meshes with tunable morphologies. Combined with MACE, dewetting-assisted patterning provided a simple route to synthesize Si nanotubes, Si nanowalls, and Si nanowires with defined dimensions and optical properties.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Polymer Science
Mingjun Qiu, Weiwei Du, Shangyu Zhou, Pengzhe Cai, Yingwu Luo, Xiaoxue Wang, Rong Yang, Junjie Zhao
Summary: This review summarizes the recent progress in non-photolithographic patterning methods, including soft lithography, nanoimprint lithography, direct writing, self-assembly of block copolymers, area-selective vapor phase deposition, and instability-induced patterning. These methods have been applied in various applications such as chromic devices, polymer light-emitting diodes, sensors, transistors, protein and cellular engineering, and more. The challenges and future research directions of non-photolithographic patterning approaches are highlighted, focusing on resolution, reliability, and scalability.
PROGRESS IN POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Laser Assisted, Savita Rani, A. K. Shukla
Summary: The fabrication of silicon nanowires by metal-assisted chemical etching and deposition of silver nanoparticles by the electroless method can be used for SERS detection of organic pollutants. Study shows that increasing the length of SiNWs decreases the enhancement of SERS, and SERS has potential in discriminating mixed dyes.
Article
Chemistry, Multidisciplinary
Foram M. Joshi, Gonzalo Alvarez Viar, Gaia Pigino, Hauke Drechsler, Stefan Diez
Summary: Gold nanowires have great potential for use in electronic, photonic, and optoelectronic devices. Current fabrication strategies have drawbacks such as high temperatures, toxic chemicals, or expensive compounds. This study presents a strategy for growing gold nanowires from seed nanoparticles within the lumen of microtubules, which is fast, simple, inexpensive, and does not require toxic chemicals or other harsh conditions.
Review
Chemistry, Multidisciplinary
Wendel A. Alves, Gavin M. King, Suchismita Guha
Summary: The solution processability of organic semiconductors and conjugated polymers, the use of nanomaterials as conducting inks, the potential of self-assembled peptides in printed technology, and the challenges of nanopatterning self-assembled peptides using ice lithography are addressed in this minireview.
Review
Physics, Applied
Meihua Shen, Thorsten Lill, John Hoang, Hao Chi, Aaron Routzahn, Jonathan Church, Pramod Subramonium, Ragesh Puthenkovilakam, Sirish Reddy, Sonal Bhadauriya, Sloan Roberts, Gowri Kamarthy
Summary: This report summarizes recent progress in patterning high aspect ratio (HAR) silicon nitride and silicon oxide (ONON) channel holes in 3D NAND flash. The focus is on discussing the mechanisms of HAR etching and reducing aspect ratio-dependent etching (ARDE) effects. The report presents highlights of a new low-temperature etch process and new simulation results from a Monte Carlo feature-scale model. The results show improvement in controlling the channel hole shape at HAR through deposition-etch co-optimization (DECO).
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Kui Zhang, Zhengwei Wang, Guodong Chen, Jinlun Zheng, Zhichang Mo, Yang Wang, Jingsong Wei
Summary: In this study, a new two-step development process was proposed to significantly improve the aspect ratio of micro/nanostructures in the AgInSbTe (AIST) heat-mode resist. This technique addresses key issues in heat-mode lithography for manufacturing functional nanostructures requiring high aspect ratios.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Savita Rani, Rangeeta Dhaka, A. K. Shukla
Summary: Metallic nanoparticles deposited on semiconductor nanowires, known as heterostructures, enhance optical and optoelectrical characteristics through the interaction between surface plasmons and nanowires. Silicon nanowires (SiNWs) were synthesized using metal-assisted chemical etching and then silver nanoparticles (AgNPs) were deposited on the SiNWs using electroless deposition. The flexibility of the nanowire structures allows for the incorporation of multiple metallic nanoparticles, making them useful for various applications in nanotechnology. The deposition of AgNPs on SiNWs results in improved light absorption, increased surface area, and enhanced charge carrier mobility, making this substrate important for next-generation photovoltaic cells.
Article
Materials Science, Multidisciplinary
Chia-Wen Tsao, Ping-Chin Shen
Summary: This paper introduces a droplet-based method for depositing metal nanoparticles and etching silicon surfaces to create silicon nanostructures. The method is simple and cost-effective, requiring only a pipette tip for coating and fabrication. The authors investigate the influence of various process parameters on the nanoparticle plating and use the droplet etching technique to selectively etch silicon. The capability of hand-writing patterning, pattern transfer, and mass production is demonstrated using a multi-channel pipette.
MATERIALS ADVANCES
(2023)
Article
Electrochemistry
Ayumu Matsumoto, Kyohei Furukawa, Shun Majima, Keishi Iwamoto, Shinji Yae
Summary: Metal-assisted etching is a low-cost and versatile microfabrication technique for semiconductors, producing composite structures including straight macropores and a mesoporous layer. Electrochemical studies revealed that increasing hydrogen peroxide concentration leads to greater macropore depth and mesoporous layer thickness, with a change in their ratio as well. The formation of the mesoporous layer is explained by hole consumption at the Si surface under positive potential, determined by mixed potential theory.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Engineering, Geological
Langping Li, Hengxing Lan, Alexander Strom, Renato Macciotta
Summary: Aspect ratio is insufficient in characterizing the geometry of landslides. This paper introduces the concept of landslide longitudinal shape as a complement to the aspect ratio. The longitudinal shape is determined by the relative width change and fluctuation, and can provide additional information about landslides.
Article
Nanoscience & Nanotechnology
Donghyo Hahm, Jaemin Lim, Hyeokjun Kim, Jin-Wook Shin, Sungkwon Hwang, Seunghyun Rhee, Jun Hyuk Chang, Jeehye Yang, Chang Hyeok Lim, Hyunwoo Jo, Beomgyu Choi, Nam Sung Cho, Young-Shin Park, Doh C. Lee, Euyheon Hwang, Seungjun Chung, Chan-Mo Kang, Moon Sung Kang, Wan Ki Bae
Summary: A dual-ligand passivation system enables quantum dots to be universally compatible with solution-based patterning techniques, allowing for the integration of luminescent quantum dot films into photonic devices. This approach offers high resolution, non-destructive patterning, and cost-effectiveness, and can be applied to various commercial photonics applications.
NATURE NANOTECHNOLOGY
(2022)
Article
Environmental Sciences
Wenkai Li, Tianlong Zheng, Yingqun Ma, Junxin Liu
Summary: High cost of sewer systems hinders sewage collection in rural areas, but using small diameter sewers can reduce costs. This study establishes cost models and hydraulic calculations to determine suitable sewer diameters for rural areas, finding that 200mm main sewers are suitable for villages with less than 1000 households.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)