Article
Chemistry, Multidisciplinary
Avto Tavkhelidze, Amiran Bibilashvili, Larissa Jangidze, Nima E. Gorji
Summary: Recent study observed geometry-induced quantum effects in periodic nanostructures, particularly in Silicon NG layers. The Fermi-level tuning of G-doped layers by changing NG depth was investigated, showing a significant increase in the Fermi level at 10 nm depth, with decreasing effects in p- and n-type substrates. The results were explained using the G-doping theory and G-doped layer formation mechanism introduced in previous works.
Article
Chemistry, Inorganic & Nuclear
Di Kang, Yao Yao, Zhongmin Su, Hong-Liang Xu
Summary: In this paper, a novel structure of Na+·Cl-@C50N5H5 was designed to explore the chemical bonding and interaction between the open-cage fullerene system C50N5H5 and NaCl salt. The directional migration of Na+ was achieved by applying an external electric field, and interesting changes were observed in the structure under the effect of the electric field. This work provides a new strategy for the design of innovative materials for molecular electronics.
INORGANIC CHEMISTRY
(2022)
Article
Biotechnology & Applied Microbiology
Stefania Sandoval, Gerard Tobias
Summary: Fullerenes are employed as versatile agents to cork the open tips of MWCNTs and to promote the release of inorganic material filled within the nanotubes. Two different strategies using annealing and wet procedure are proposed to trigger the release of the filler.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Engineering, Biomedical
Yang He, Chenyan Hu, Zhijia Li, Chuan Wu, Yuanyuan Zeng, Cheng Peng
Summary: Early diagnosis of infectious diseases and tumors is crucial for global public health. Carbon nanomaterials have been widely studied and proven to improve the accuracy of diagnosis in various scientific fields. This review focuses on their applications in diagnosing infectious diseases and tumors over the past five years. Recent advances in biosensing, bioimaging, and nucleic acid amplification technologies using carbon nanomaterials are discussed, highlighting their unique properties and the challenges and opportunities for future clinical applications.
MATERIALS TODAY BIO
(2022)
Article
Biochemistry & Molecular Biology
Jin-Myung Choi, Hiroki Suko, Kyusun Kim, Jiye Han, Sangsu Lee, Yutaka Matsuo, Shigeo Maruyama, Il Jeon, Hirofumi Daiguji
Summary: This study improved the moisture and oxygen barrier ability as well as heat releasing capability in the passivation of perovskite solar cells (PSCs) by adding multi-walled carbon nanotubes to the epoxy resin used for encapsulation. The PSCs encapsulated with carbon nanotube-added resin exhibited more stable operation and only experienced a ca. 30% efficiency decrease over one week compared to the ca. 63% decrease in the reference devices.
Review
Energy & Fuels
Krina Patel, Daniel Prochowicz, Seckin Akin, Abul Kalam, Mohammad Mahdi Tavakoli, Pankaj Yadav
Summary: Organic-inorganic hybrid perovskite solar cells (PSCs) have gained attention due to their high power conversion efficiency and low-cost manufacturing. However, issues such as improper charge transfer, perovskite degradation, and poor stability hinder their commercialization. This review explores the use of carbon-based materials, with their cost-effectiveness, high conductivity, and hydrophobic nature, to enhance the performance and stability of PSCs.
Article
Chemistry, Applied
Fang Li, Penglong Jia, Qian Zhang, Yongjun Liu, Vladimir A. Vinokurov, Wei Huang
Summary: Metal doping is crucial for the electronic modulation of semiconductors, affecting the Fermi level and thus the surface chemisorption and catalytic properties. In this study, ZnO doped with 4 mol% Cu was synthesized using four preparation routes, revealing the significant impact of Cu states and Fermi level on the catalytic performance. Lower Fermi level in the electronically modified ZnO catalysts facilitated higher alcohols synthesis, while higher Fermi level favored methanol selectivity. Copper was incorporated into the ZnO lattice as isolated Cu2+ ions, adjusting the electronic structure and promoting the catalysts' electron acquisition. This work provides a new perspective on promoting catalytic performance through electronic modification of ZnO.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yuxuan Sun, Zhen Jiao, Harold J. W. Zandvliet, Pantelis Bampoulis
Summary: In this study, conductive atomic force microscopy was used to investigate charge carrier injection in metal-GeS nanocontacts. Three dominant injection mechanisms were identified: thermionic emission, direct tunneling, and Fowler-Nordheim tunneling. The Schottky barrier was found to be independent of the metallic tip's work function, indicating strong Fermi-level pinning.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Engineering, Electrical & Electronic
Theresia Knobloch, Burkay Uzlu, Yury Yu Illarionov, Zhenxing Wang, Martin Otto, Lado Filipovic, Michael Waltl, Daniel Neumaier, Max C. Lemme, Tibor Grasser
Summary: Device stability in graphene-based field-effect transistors with amorphous gate oxides can be improved by Fermi-level tuning.
NATURE ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Oscar Jover, Alberto Martin-Jimenez, Hannah M. Franklin, Ryan M. Koenig, Jose I. Martinez, Nazario Martin, Koen Lauwaet, Rodolfo Miranda, Jose M. Gallego, Steven Stevenson, Roberto Otero
Summary: This study characterizes the adsorption, self-assembly, and electronic structure of [5,5]-C-90 fullertube molecules on different noble metal surfaces using scanning tunneling microscopy and spectroscopy. The results show that the shape of the molecular orbitals of the adsorbed fullertubes matches the theoretical calculations, and some of the molecular orbitals are influenced by the quantum confinement imposed by the hemifullerene caps. These findings provide a conceptual framework for the design and understanding of custom fullertube molecules.
Article
Chemistry, Multidisciplinary
Anand Kumar Singh, Arun Kumar Singh, Sita Ram Prasad Sinha
Summary: Modulating the Fermi level of graphene through doping with nanoparticles to macromolecules induces a p-type doping effect and downward shift of the Fermi level, which is crucial for the development of high-performance flexible electronic devices.
Article
Biochemistry & Molecular Biology
Andrzej Hudecki, Dorota Lyko-Morawska, Anna Kasprzycka, Alicja Kazek-Kesik, Wirginia Likus, Jolanta Hybiak, Kornelia Jankowska, Aleksandra Kolano-Burian, Patryk Wlodarczyk, Weronika Wolany, Jaroslaw Markowski, Wojciech Maziarz, Iwona Niedzielska, Wojciech Pakiela, Mariusz Nowak, Marek J. Los
Summary: This study developed a new composite biomaterial based on hydroxyapatite with different dopants, which showed good mechanical properties and bacteriostatic effects against Gram-positive bacteria.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Jiye Han, Kyusun Kim, Mohammad Tavakkoli, Jongmin Lee, Dawoon Kim, In Chung, Aram Lee, Keonwoo Park, Yongping Liao, Jin-Wook Lee, Seoung-Ki Lee, Jin-Woo Oh, Hyokyung Sung, Esko Kauppinen, Il Jeon
Summary: An effective method for obtaining metal nanoparticles encapsulated by carbon layers from carbon nanotubes is demonstrated. The nanoparticles are selectively extracted from the synthesized carbon samples, and their aggregation behavior is controlled to maximize the light scattering in perovskite solar cells. The application of these nanoparticles increases the power conversion efficiency of the devices.
Article
Chemistry, Physical
Arianna Dalla Colletta, Marco Pelin, Silvio Sosa, Laura Fusco, Maurizio Prato, Aurelia Tubaro
Summary: Carbon-based nanomaterials (CBNs) have been extensively studied for various applications due to their excellent physicochemical properties. However, there is a lack of toxicological data on their potential adverse effects at the skin level. Therefore, more research is needed to evaluate the safety of CBNs for skin applications.
Article
Chemistry, Multidisciplinary
Kyle Stevens, Ngamta Thamwattana, Thien Tran-Duc
Summary: Methane capture and storage are crucial for mitigating the impacts of climate change and global warming. This study presents a new continuum approach that includes functional Lennard-Jones parameters to better understand the interaction energies between methane and carbon nanostructures, such as fullerenes, nanotube bundles, and nanocones.
