Article
Chemistry, Multidisciplinary
Yang Huang, Xinnan Mao, Guotao Yuan, Duo Zhang, Binbin Pan, Jun Deng, Yunru Shi, Na Han, Chaoran Li, Liang Zhang, Lu Wang, Lin He, Youyong Li, Yanguang Li
Summary: The size modulation of catalyst particles can affect their selectivity and electrochemical performance; 5-nm and 15-nm In2O3 nanocrystals were prepared by controlling experimental parameters; The catalyst derived from 15-nm nanocubes showed higher selectivity and lower overpotential in CO2 reduction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Johanna C. van der Bok, P. Tim Prins, Federico Montanarella, D. Nicolette Maaskant, Floor A. Brzesowsky, Maaike M. van der Sluijs, Bastiaan B. Salzmann, Freddy T. Rabouw, Andrei Petukhov, Celso De Mello Donega, Daniel Vanmaekelbergh, Andries Meijerink
Summary: Researchers found through in situ studies that in the early stage of the CdSe nanoplatelet reaction, both isotropic nanocrystals and mini-nanoplatelets form in the absence of short-chain ligands, but most precursors are consumed in isotropic growth. The addition of acetate induces a dramatic shift towards nearly exclusive 2D growth of already existing mini-nanoplatelets. Therefore, mature nanoplatelets only grow through a subtle interplay between myristate and acetate, with the latter catalyzing fast lateral growth of the side facets of the mini-nanoplatelets.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Jindou Shi, Minqiang Wang, Zheyuan Da, Chen Zhang, Junnan Wang, Yusong Ding, Youlong Xu, Nikolai V. Gaponenko
Summary: The thermal stability of CsPbBr3 has been a bottleneck for its commercialization. This study systematically investigated the optical properties and thermal stability of CsPbBr3 with different dimensions and found that dimensional change directly influences its properties. 3D CsPbBr3 micron crystals showed relatively high thermal stability, which is promising for the commercialization of next-generation perovskite optoelectronic devices.
Review
Chemistry, Multidisciplinary
Miri Kazes, Thumu Udayabhaskararao, Swayandipta Dey, Dan Oron
Summary: The rediscovery of halide perovskite compounds, particularly organic and inorganic lead halide perovskite materials, has shown significant progress in various applications, with a focus on photovoltaics. However, chemical and thermal degradation issues hinder their commercialization, highlighting the critical role of interface control in maintaining their stability.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Baiyu Wang, Jette K. Mathiesen, Andrea Kirsch, Nicolas Schlegel, Andy S. Anker, Frederik L. Johansen, Emil T. S. Kjaer, Olivia Aalling-Frederiksen, Tobias M. Nielsen, Maria S. Thomsen, Rasmus K. Jakobsen, Matthias Arenz, Kirsten M. o. Jensen
Summary: Researchers studied the formation of bimetallic palladium indium nanoparticles using a colloidal synthesis method and found that synthesis parameters and additives have a significant impact on the atomic structure of the obtained product. The study highlights the importance of subtle changes in synthesis conditions on the product's atomic structure.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Saeed Yazdani, Ali Daneshkhah, Abolee Diwate, Hardi Patel, Joshua Smith, Olivia Reul, Ruihua Cheng, Afshin Izadian, Amir Reza Hajrasouliha
Summary: The synthesis of gold nanoparticles relies on the concentration of trisodium citrate dihydrate and the interaction time with tetrachloroauric acid, enabling the production of gold nanoparticles with diverse sizes and dispersity through control variables. The chemical reactions between trisodium citrate dihydrate and tetrachloroauric acid lead to a slight decrease in pH throughout the synthesis process. The nucleation of gold nanoparticles causes pH fluctuation over time, with a negative correlation between pH and reaction time demonstrated at different ratios of trisodium citrate dihydrate to tetrachloroauric acid.
Article
Chemistry, Applied
Siyu Lu, Haiyan Yang, Zixuan Zhou, Liangshu Zhong, Shenggang Li, Peng Gao, Yuhan Sun
Summary: In this study, In2O3 with varying particle sizes and SAPO-34 were used as bifunctional catalysts for CO2 hydrogenation, revealing that decreasing the average In2O3 crystallite size can enhance the CO2 conversion and selectivity of lower olefins. However, In2O3 particles smaller than 19 nm are more prone to sintering.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Saptarshi Chakraborty, Subhashri Mannar, Ranjani Viswanatha
Summary: Efficient photonic and plasmonic response within a single material without decay, particularly for applications like surface lattice resonance (SLR), remains a challenge. This study focuses on using semiconductor plasmonic structures and enhancing the quantum yield (QY) by intercalating suitable semiconductor plasmonic materials, providing a cost-effective alternative for SLR applications while maintaining the quality factor.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Materials Science, Ceramics
Ida Tyschenko, Matthias Voelskow, Alexander Cherkov
Summary: The diffusivity and interaction of As and In atoms co-implanted in thermally-grown SiO2 films were investigated, showing a strong dependency on the SiO2 surface conditions. The formation of different nanostructures was observed under different SiO2 film conditions, with reciprocal influence of In and As atoms on their diffusion.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Chemistry, Physical
Ting Liu, Zhucheng Jiang, Xiaoyu Zhai, Jiaxiang Liu
Summary: A novel strategy was proposed to prepare high-quality ITO targets using binary-size particles in different particle count proportions. By filling the internal gaps among large particles with small particles, a dense microstructure was formed, leading to high relative density and low resistivity under specific conditions.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Wanjia Zhang, Yue Lou, Hongliang Dong, Fanshi Wu, Janak Tiwari, Zhan Shi, Tianli Feng, Sokrates T. Pantelides, Biao Xu
Summary: Crystal-phase engineering is an effective method for modulating the properties and functions of semiconductor materials, but it has rarely been explored in thermoelectrics. In this study, nanostructured solids with unconventional cubic-phase are prepared through ligand retention using a combined colloidal synthesis and sintering route. The unconventional cubic-phase samples show optimized electrical and thermal properties through phase and entropy design.
Article
Chemistry, Physical
Takaaki Tomai, Liangyu Tang, Akira Yoko, Yuki Omura, Gimyeong Seong, Tadafumi Adschiri
Summary: The study introduces a method for regenerating degraded facet-controlled nanoparticle catalysts through the dissolution-reprecipitation process and surface crystalline structure reorientation using an organic modifier. The modifier stabilizes the (100) facet, accelerates the dissolution-reprecipitation process, and promotes facet modification and catalyst regeneration.
CHEMISTRY OF MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Guanyou Lin, Miqin Zhang
Summary: The potential of theranostic nanoparticles in tumor treatment is widely recognized due to their ability to integrate multifaceted functionalities into a single nanosystem. These nanoparticles typically consist of an inorganic core for imaging and therapeutic functions, bioinert coatings for improved biocompatibility, controlled drug-loading-release modules, and targeting ligands for specific cell uptake. The design and assembly of these functionalities require sophisticated molecular design and precise execution. Ligand chemistry plays a decisive role in translating theoretical designs into functionalized theranostic nanoparticles. This Account reviews the properties and utilities of capping ligands, drug-loading ligands, and targeting ligands in theranostic nanoparticles.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
Zhongxiang Yao, Gang Bi, Juxin Yin, Zeyu Chen, Chunfeng Cai
Summary: In this study, PbSe nanostructures with branched, I-shaped, and L-shaped nanorods were successfully synthesized and grown by modulating the reaction environment. The morphology and size of the nanorods were found to be affected by reaction time and temperature. Furthermore, it was discovered that the optical properties of PbSe nanorods can be tuned in the near-infrared range. This research expands the potential applications of PbSe nanostructures in fields such as tunable infrared lasers, bioimaging, and solar cells.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Martin Wortmann, Philipp Krieger, Natalie Frese, Elmar Moritzer, Bruno Huesgen
Summary: The study demonstrated the influence of isocyanate absorption on the mechanical properties of silicone elastomers for the first time. Results showed that the type of isocyanate had a greater impact on property changes in silicone than the type of silicone used. Hydrogenated MDI caused less deterioration of mechanical properties and achieved a longer mold service life, despite silicone absorbing significantly less methylene diphenyl diisocyanate (MDI).
Article
Chemistry, Multidisciplinary
Jie Fang, Kan Yao, Tianyi Zhang, Mingsong Wang, Taizhi Jiang, Suichu Huang, Brian A. Korgel, Mauricio Terrones, Andrea Alu, Yuebing Zheng
Summary: The study found that a 7.18 meV near-intrinsic linewidth can be observed at room temperature when monolayer WS2 is coupled with a moderate-refractive-index hydrogenated silicon nanosphere in water. By boosting the dynamic competition between exciton and trion decay channels in WS2 through the nanosphere-supported Mie resonances, the coherent linewidth can be tuned from 35 down to 7.18 meV. This modulation of exciton linewidth and its associated mechanism are robust even in the presence of defects, easing the sample quality requirement and providing new opportunities for TMD-based nanophotonics and optoelectronics.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Kevin M. Roccapriore, Shin-Hum Cho, Andrew R. Lupini, Delia J. Milliron, Sergei Kalinin
Summary: The spatial confinement of matter in functional nanostructures has positioned them at the forefront of nanoscience, serving as playgrounds for exotic physics and quantum phenomena as well as finding applications in various fields. Through modern synthesis processes and precise sculpting, the plasmonic response of nanoparticles can be effectively modified, offering a wide range of possibilities for nanophotonic design.
Article
Chemistry, Multidisciplinary
Brandon J. Furey, Benjamin J. Stacy, Tushti Shah, Rodrigo M. Barba-Barba, Ramon Carriles, Alan Bernal, Bernardo S. Mendoza, Brian A. Korgel, Michael C. Downer
Summary: Colloidal nanocrystalline silicon quantum dots (nc-SiQDs) excited by two-photon in the near-infrared (NIR) range have potential applications in deep biological imaging. The two-photon absorption (2PA) cross section of colloidal nc-SiQDs is measured, and it is found to be smaller for smaller diameter nanocrystals. The efficiencies of nc-SiQDs for bioimaging using two-photon excited photoluminescence (2PE-PL) are compared to other quantum dots and molecular fluorophores and found to be comparable or superior at greater depths.
Article
Chemistry, Physical
Michael K. Abney, Mokshin Suri, Tushti Shah, Francis Leonard Deepak, Brian A. Korgel
Summary: Light induces a slow, reversible enhancement in photoluminescence lifetime and intensity in films of perovskite-phase CsPbI3 nanocrystals. The enhancement can be further increased by placing the films under vacuum or nitrogen.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Nanoscience & Nanotechnology
Shin Hum Cho, Ikhyun Kim
Summary: We report that doped metal oxide nanocrystal cubes show robustness in their infrared plasmonic absorption optical property under exposure to repeated hypersonic shockwaves. This study demonstrates the potential application of doped infrared plasmonic metal oxides in high-performance infrared optical filters and sensor devices in surface exposed hypersonic aerospace vehicles.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Kihoon Kim, Jiwon Yu, Jungchul Noh, Lauren C. Reimnitz, Matthew Chang, Daniel R. Gamelin, Brian A. Korgel, Gyeong S. Hwang, Delia J. Milliron
Summary: The study demonstrates that adding metal salts can tune the concentration of intrinsic defects in metal oxide nanocrystals, introducing oxygen vacancies. This method is broadly applicable to metal oxide nanocrystals of various morphologies and compositions by generating intrinsic defects.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Yangning Zhang, Omar F. Aly, Anastacia De Gorostiza, Thana Shuga Aldeen, Allison J. Segapeli, Brian A. Korgel
Summary: Cesium methylammonium lead iodide (Cs(x)MA(1-x)PbI(3)) nanocrystals with a wide range of Cs-MA compositions were synthesized through post-synthetic cation exchange. The alloyed nanocrystals retained their perovskite phase and composition-tunable photoluminescence. Fast cation exchange was achieved by adding excess methylammonium oleate to the reaction mixture. The transformation and degradation kinetics of the nanocrystal films were slower than those of the parent nanocrystals.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Zachary M. Sherman, Kihoon Kim, Jiho Kang, Benjamin J. Roman, Hannah S. N. Crory, Diana L. Conrad, Stephanie A. Valenzuela, Emily Lin, Manuel N. Dominguez, Stephen L. Gibbs, Eric Anslyn, Delia J. Milliron, Thomas M. Truskett
Summary: The optical properties of nanoparticle assemblies are influenced by the unique characteristics of their building blocks and spatial organization, leading to emergent phenomena. A fast, materials agnostic method has been developed to simulate the optical response of large nanoparticle assemblies with structural and compositional complexity. This method overcomes the limitations of conventional electromagnetic simulations and achieves rapid and accurate convergence for complex configurations, enabling the design of complex and hierarchically structured assemblies with desired optical characteristics.
Article
Chemistry, Multidisciplinary
Chang-Min Yoon, Suk Jekal, Dong-Hyun Kim, Jungchul Noh, Jiwon Kim, Ha-Yeong Kim, Chan-Gyo Kim, Yeon-Ryong Chu, Won-Chun Oh
Summary: Unique 3D hierarchically structured carbon nanofiber/metal oxide/conducting polymer composite materials were synthesized through various experimental methods. The materials exhibited enhanced capacitance and were used as active materials for supercapacitor electrodes, achieving high specific capacitances. An asymmetric supercapacitor device with excellent specific capacitance and long-term cyclability was also assembled using these materials.
Article
Polymer Science
Dong-Hyun Kim, Suk Jekal, Chan-Gyo Kim, Yeon-Ryong Chu, Jungchul Noh, Min Sang Kim, Neunghi Lee, Woo-Jin Song, Chang-Min Yoon
Summary: A simple oxygen atmospheric plasma treatment is used to enhance the wettability and hydrophilicity of a polyvinyl alcohol (PVA) matrix. The optimal plasma treatment conditions are determined by varying the plasma power and treatment time. The plasma-treated PVA matrix shows increased specific capacitance and improved electrochemical performance in solid-state supercapacitors due to the formation of carbonyl functional groups.
Article
Chemistry, Multidisciplinary
Kihoon Kim, Zachary M. Sherman, Angela Cleri, Woo Je Chang, Jon-Paul Maria, Thomas M. Truskett, Delia J. Milliron
Summary: By continuously varying doping at two length scales, the atomic and nanocrystal scales, the frequency and bandwidth of the collective plasmon resonance in nanocrystal-based metasurfaces can be tuned, leading to the emergence of a broad infrared spectral region with near-zero permittivity. This multiscale doping strategy offers a powerful approach to designing metamaterials for optical applications.
Article
Chemistry, Multidisciplinary
Jie Fang, Kan Yao, Mingsong Wang, Zhuohang Yu, Tianyi Zhang, Taizhi Jiang, Suichu Huang, Brian A. Korgel, Mauricio Terrones, Andrea Alu, Yuebing Zheng
Summary: In this study, we achieved on-demand exciton-polariton emission from a wide range of TMDs at room temperature by hybridizing excitons with broadband Mie resonances. The system demonstrated stable polaritonic photoluminescence and multiple Rabi splittings.
Article
Chemistry, Physical
Ha-Yeong Kim, Suk Jekal, Chan-Gyo Kim, Jungchul Noh, Jiwon Kim, Yeon-Ryong Chu, Zambaga Otgonbayar, Won-Chun Oh, Sang Hun Lee, Chang-Min Yoon
Summary: In this study, Al paper and cellulose acetate filters from heated tobacco waste were converted into current collectors and active materials for a supercapacitor device, exhibiting stable electrochemical behavior. This is a pioneering study highlighting the potential of reusing biomass waste as essential components of energy storage devices.
Article
Polymer Science
Suk Jekal, Min-Sang Kim, Dong-Hyun Kim, Jungchul Noh, Ha-Yeong Kim, Jiwon Kim, Hyeonseok Yi, Won-Chun Oh, Chang-Min Yoon
Summary: A flexible all-solid-state asymmetric supercapacitor (FASC) device was fabricated using heated tobacco waste (HTW) through recycling. The carbonized HTW-C mixed with metal oxides (MnO2 and Fe3O4) to obtain active materials for supercapacitors. Poly(lactic acid) (PLA) filters were dissolved and mixed with the active materials, and flexible electrodes were created using drop-casting method. The FASC device exhibited excellent electrochemical performance and remarkable capacitance of 5.80 mF cm(-2) at 1 mA cm(-2).
Article
Polymer Science
Suk Jekal, Minki Sa, Yeon-Ryong Chu, Chan-Gyo Kim, Jungchul Noh, Jiwon Kim, Ha-Yeong Kim, Won-Chun Oh, Zambaga Otgonbayar, Chang-Min Yoon
Summary: This study demonstrates the use of plate-like materials to induce a percolation gel-like effect in electrorheological fluids. The high aspect ratio of these materials enhances their physical stability and leads to the formation of a gel-like state. In practical applications, electrorheological fluids based on synthetic mica showed the highest yield stress.
