Article
Chemistry, Physical
Gholamreza Ghashami, Maryam Mahnama, Mahdi Moghimi Zand, S. Mehdi Vaez Allaei, Miquel Lopez-Suarez
Summary: This study proposes a method where hexagonal boron nitride nanoribbons and nanotubes are used to harvest energy and rectify the output voltage simultaneously, eliminating the need for an external rectifying circuit. The simulation results show that the buckling of the nano-mechanical structures can be engineered to rectify the generated voltage, paving the way for the design of more efficient and scalable energy harvesting devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Asia Matatyaho Ya'akobi, Cedric J. S. Ginestra, Lyndsey R. Scammell, Michael W. Smith, Matteo Pasquali, Yeshayahu Talmon
Summary: This study investigates boron nitride nanotubes (BNNTs) synthesized by the high temperature-pressure (HTP) method and compares their properties after different purification processes using advanced electron microscopy techniques. The results show that BNNTs of higher purity form small, ordered domains at lower concentrations and defects do not prevent their nematic alignment. Cryogenic electron microscopy provides direct-imaging evidence of the BNNT liquid crystalline phase, suggesting the potential for the fabrication of highly ordered BNNT-based macroscopic assemblies through liquid-phase processing.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
R. Takassa, O. Farkad, E. A. Ibnouelghazi, D. Abouelaoualim
Summary: The electronic and optical properties of ultra-small carbon and boron nitride nanotubes were investigated using three different density functional methods. The hybrid functional YS-PBE0 performed the best for calculating the band gap of boron nitride nanotubes, while the PBE and TB-mBJ functionals showed smaller errors for carbon nanotubes. The dielectric function was anisotropic for all nanotubes, with higher static refractive index in the carbon nanotubes and an inverse correlation with diameter.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Physical
Alfredo Segura, Ramon Cusco, Claudio Attaccalite, Takashi Taniguchi, Kenji Watanabe, Luis Artus
Summary: The study investigated the pressure dependence of bandgap transitions in hexagonal boron nitride using optical reflectance. It was found that with increasing pressure, both direct and indirect bandgap transitions shift downwards, with the direct transition exhibiting a faster decrease. After considering excitonic effects, it was observed that the pressure coefficient of the direct excitonic transition is much lower than that of the indirect excitonic transition.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Engineering, Environmental
A. Alrebh, M. Plunkett, L. Gaburici, M. Couillard, T. Lacelle, C. T. Kingston, K. S. Kim
Summary: This study presents a new method for the synthesis of boron nitride nanotubes (BNNTs) using ammonia borane (AB) as the raw material in hydrogen-assisted thermal plasma. The results show that AB can enhance the synthesis of BNNTs with reduced impurities and increased density of nucleating seeds.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Physics, Applied
Zhenxing Yang, Javeed Mahmood, Shifeng Niu, Hui Tian, Tingting Ji, Cailong Liu, Jong-Beom Baek, Bertil Sundqvist, Mingguang Yao, Bingbing Liu
Summary: The study reveals that under pressure, strong electrostatic repulsion between π electrons and in-plane sp(2) electrons in graphitic carbon nitride materials may distort intralayer phonon vibrations and affect the increase in resistivity. Moreover, the different pressure responses in resistance of C2N and C3N are attributed to their distinct π electron distributions.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Yanan Zhao, Shiqi Zhao, Hailian Huang, Zijie Liu, Xiaorong Cheng, Graham Dawson
Summary: In this study, composites between TiNT and BN were prepared by a new mixed hydrothermal/solvothermal method at different temperatures, and compared to physical mixing. The composites showed enhanced photocatalytic hydrogen production, with the composite prepared at 140 degrees C exhibiting Ti-O-B bond formation and the highest efficiency of 1600 mu molg-1hr-1. The structural and optical properties, as well as charge carrier lifetime, were investigated to understand the enhanced activity, and a band diagram was proposed to explain the results.
APPLIED SURFACE SCIENCE
(2023)
Review
Materials Science, Multidisciplinary
Adesewa O. Maselugbo, Haley B. Harrison, Jeffrey R. Alston
Summary: Boron nitride nanotubes (BNNTs) are considered to be one of the most important materials of the future due to their extraordinary physical properties, but face significant scientific challenges in terms of large-scale synthesis, purification, and study.
JOURNAL OF MATERIALS RESEARCH
(2022)
Article
Nanoscience & Nanotechnology
Ling Li, Ningqiang Shi, Xiangqian Jiang, Weiping Chen, Chuncheng Ban, Jiandong Hao
Summary: This study focuses on the synthesis of high-quality bismuth telluride (Bi2Te3) nanowires and boron nitride nanotubes (BNNTs), as well as the preparation of Bi2Te3-BNNTs and Bi2Te3-BCNNTs composite films. The obtained composite films exhibit high electrical conductivity, good flexibility, and thermal stability. They show great potential for application in thermoelectric conversion.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Mauricio F. C. Martins Quintela, Nuno M. R. Peres
Summary: This paper investigates the scattering phenomenon of excitons by free carriers in monolayer hexagonal boron nitride. The excitonic states are described using variational wave functions, and the distinction between elastic and inelastic scattering is made. The contribution of free carrier scattering to the excitonic linewidth is analyzed in terms of temperature and carrier density dependence.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Multidisciplinary
Aaditya Pendse, Semih Cetindag, Kun Wang, Donglin Li, Richard J. Castellano, Da-Chi Yang, Tongshuai Wang, Jerry W. Shan, Sangil Kim
Summary: This study presents a nanofluidic platform utilizing BNNTs as a model system to investigate ion transport. The results reveal the significant role of strong electrostatic interactions between highly charged BNNTs and ions in defining the ion transport mechanism. Furthermore, the study demonstrates the superior NaCl separation performance of BNNTs compared to commercial membranes.
Article
Energy & Fuels
Fatma Nur Tuzluca Yesilbag, Yasar Ozkan Yesilbag, Ahmad Huseyin, Ahmed Jalal Salih Salih, Mehmet Ertugrul
Summary: Optimizing interlayer spacing of 2D MXene is important for synthesizing 3D composite electrodes for energy storage. In this study, flexible and conductive MXene/BCN nanotube composite film electrodes were prepared, with a specific capacitance of 678 F g-1 and excellent cycle stability. The composite electrodes made of 2D MXene and 1D BCN nanotubes open up a new avenue for energy storage materials.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Shan-Wen Cheng, Ding Xu, Haowen Su, James M. Baxter, Luke N. Holtzman, Kenji Watanabe, Takashi Taniguchi, James C. Hone, Katayun Barmak, Milan Delor
Summary: In this study, we use excitons in two-dimensional materials as sensors to achieve visible-light imaging of phonon polariton propagation in hexagonal boron nitride, and observe the phenomenon of co-propagation of excitons and phonon polaritons. This research provides a new method for high-precision imaging of polar excitations and a new mechanism for realizing ballistic exciton transport at room temperature.
Article
Chemistry, Multidisciplinary
Tomohiro Shiraki, Rioe Saito, Hayato Saeki, Naoki Tanaka, Koji Harano, Tsuyohiko. Fujigaya
Summary: Chemical functionalization of boron nitride nanotubes (BNNTs) through reductive alkylation reaction introduces luminescent defects. Attachment of hexyl groups on the BNNT wall results in the formation of sp3 boron atom defects in the BN network, leading to defect photoluminescence in the UV-vis region. This chemistry-based defect doping technique offers an attractive tool for bandgap engineering of BNNTs.
Article
Polymer Science
Xiangqian Jiang, Chuncheng Ban, Ling Li, Jiandong Hao, Ningqiang Shi, Weiping Chen, Peng Gao
Summary: In this study, composite nanofiber films based on boron carbon nitrogen were prepared by electrospinning, and it was found that the diameter of nanofibers changed with electrospinning voltage and precursor solution concentration. The thermoelectric properties of the films were closely related to the electrospinning quality, with significant improvements in thermoelectric characteristics observed in multilayer nanocomposite fiber films.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Sicheng Lu, Fang Yin, Yujia Wang, Nianpeng Lu, Lei Gao, Huining Peng, Yingjie Lyu, Youwen Long, Jia Li, Pu Yu
Summary: This study explores the structural phase transition of brownmillerite SrCoO2.5 and its influencing factors. It is found that using aqueous alkali as the electrolyte can trigger a rapid transition, while the acid solution with rich protons can also induce an unexpected phase transition in a faster manner. Theoretical calculations reveal that this transition is caused by a proton-assist ionic disproportionation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Dongsheng Xia, Xuan Tang, Sheng Dai, Rile Ge, Alexander Rykov, Junhu Wang, Tzu-Hsi Huang, Kuan-Wen Wang, Yinping Wei, Kai Zhang, Jia Li, Lin Gan, Feiyu Kang
Summary: By conducting high-temperature synthetic chemistry between 1100 and 1200 degrees C, the catalytic and storage stability of Fe-N-C materials have been greatly improved. The optimized catalyst shows excellent stability in proton exchange membrane fuel cells, with over 80% performance retention after 30 hours under H-2/O-2 condition and no activity loss after 35 days of storage, while maintaining competitive oxygen reduction reaction activity and fuel cell performance.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhiming Xu, Wenhui Duan, Yong Xu
Summary: In this study, we constructed a first-principles database for quantum anomalous Hall (QAH) materials and explored the microscopic mechanisms that determine their properties. We found that the Coulomb exchange, which is usually neglected, plays a strong role in a large class of QAH materials and is key to resolving experimental puzzles. Additionally, we identified simple indicators for property evaluation and suggested material design strategies to control QAH chirality and gap. This work is valuable for future research in magnetic topological physics and materials.
Article
Multidisciplinary Sciences
Shaohua Zhou, Changhua Bao, Benshu Fan, Hui Zhou, Qixuan Gao, Haoyuan Zhong, Tianyun Lin, Hang Liu, Pu Yu, Peizhe Tang, Sheng Meng, Wenhui Duan, Shuyun Zhou
Summary: Time-periodic light field has been used to manipulate quantum states in solid-state materials, cold atoms, and photonic systems. This is achieved through interaction with photon-dressed Floquet states in the strong-coupling limit, known as Floquet engineering. In this study, experimental evidence of momentum-resolved Floquet band engineering in a model semiconductor, black phosphorus, is reported using time and angle-resolved photoemission spectroscopy measurements. Strong band renormalization and light-induced dynamical gap opening are observed near the band edges under near-resonance pumping, along with the emergence of Floquet sidebands. The band renormalization shows a selection rule favoring pump polarization along the armchair direction, indicating pseudospin selectivity for Floquet band engineering enforced by lattice symmetry. This work demonstrates pseudospin-selective Floquet band engineering in black phosphorus and provides important guiding principles for Floquet engineering of semiconductors.
Article
Nanoscience & Nanotechnology
Hanqing Liu, Feng Zhou, Xiaoyu Shi, Keyan Sun, Yan Kou, Pratteek Das, Yangeng Li, Xinyu Zhang, Srikanth Mateti, Ying Chen, Zhong-Shuai Wu, Quan Shi
Summary: We report a versatile strategy for designing high-enthalpy flexible phase change nonwovens (GB-PCN) by wet-spinning hybrid graphene-boron nitride fiber and impregnating paraffins. GB-PCN exhibits unprecedented enthalpy value, excellent thermal reliability, anti-leakage capacity, thermal cycling ability, and high water vapor permeability. The wearable thermal management systems based on GB-PCN demonstrate great potential for maintaining human body at a comfortable temperature range for a long time.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Yuchi Wan, Zhijie Wang, Muyun Zheng, Jia Li, Ruitao Lv
Summary: This study successfully achieved efficient electrochemical NRR by constructing Bi-MoOx@RGO electrocatalysts with crystalline-amorphous interfaces. The optimized design of the catalyst and the utilization of gas diffusion electrode in the flow cell further improved the NH3 yield.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Xiongwei Zhong, Yangfan Shao, Biao Chen, Chuang Li, Jinzhi Sheng, Xiao Xiao, Baomin Xu, Jia Li, Hui-Ming Cheng, Guangmin Zhou
Summary: A three-electrode rechargeable zinc-air battery (T-RZAB) with decoupled cathodes and a zinc-free anode is developed to solve the problems of opposing requirements for oxygen reduction/evolution reactions and zinc corrosion. The T-RZAB exhibits a high discharge capacity per cycle, low voltage gap, and ultralong cycle life. A large T-RZAB with no significant degradation after cycling for 1000 hours is also achieved. Moreover, a T-RZAB pack with high energy density and low cost is assembled.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Yinping Wei, Zhichao Zhang, Chao Mei, Junyang Tan, Ziqiang Wang, Jia Li, Lin Gan
Summary: Transition-metal spinel oxides have shown great potential as high-performance electrodes for electrochemical energy storage and conversion. The irreversible or reversible spinel-rocksalt phase transformation at the oxide surface plays a crucial role in determining their performance. In this study, using Co3O4 nanoparticles as an example, the in situ atomic-scale imaging technique was employed to investigate the spinel-rocksalt transformation. It was found that the transformation is not only influenced by the oxygen vacancy formation energy but also strongly dependent on the surface polarity, with faster transformation observed at the (001) surface compared to the (111) surface.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xin Hu, Yimin Chen, Wei Xu, Yi Zhu, Donggun Kim, Ye Fan, Baozhi Yu, Ying Chen
Summary: A series of thermoplastic polyurethane (TPU)-based 3D-printed electrodes for flexible and customizable high-performance lithium-ion batteries were developed via fused deposition modeling. The TPU-based electrodes exhibited high dimensional accuracy, flexibility, and mechanical stability. This study provides a new avenue to achieve customizable and flexible batteries and offers a promising way to erase the performance gap between 3D-printed and conventional lithium-ion batteries.
Article
Materials Science, Multidisciplinary
Haoyuan Zhong, Hongyun Zhang, Haoxiong Zhang, Ting Bao, Kenan Zhang, Shengnan Xu, Laipeng Luo, Awabaikeli Rousuli, Wei Yao, Jonathan D. Denlinger, Yaobo Huang, Yang Wu, Yong Xu, Wenhui Duan, Shuyun Zhou
Summary: We report the superconducting and electronic structure properties of a natural van der Waals superlattice (PbSe)(1.14)NbSe2. Anisotropic superconductivity with a higher transition temperature than monolayer NbSe2 is revealed by transport measurements. ARPES measurements reveal the two-dimensional electronic structure and charge transfer characteristics. Our study suggests that natural van der Waals superlattices can achieve intriguing properties distinct from bulk and monolayer samples.
PHYSICAL REVIEW MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Teng- Yang, Yuen Yung Hui, Jen-Iu Lo, Yu-Wen Huang, Yin-Yu Lee, Bing-Ming Cheng, Huan-Cheng Chang
Summary: This study demonstrates the use of fluorescent nanodiamonds (FNDs) with nitrogen-vacancy (NV) centers as scintillators for imaging and characterizing extreme ultraviolet (EUV) radiation. The FNDs form a stable thin film and can emit bright red fluorescence when excited by EUV light. An FND-based imaging device has been developed for beam diagnostics of synchrotron radiations.
Review
Materials Science, Multidisciplinary
Lulu An, Yuanlie Yu, Qiran Cai, Srikanth Mateti, Lu Hua Li, Ying Ian Chen
Summary: The urgent need for ultrahigh thermally conductive materials in the electronics industry has led to the exploration of hexagonal boron nitride nano-sheets (BNNSs) as an ideal choice. This article provides a comprehensive review of various fabrication methods for BNNSs, discusses the impact of BNNS properties on their thermally conductive properties, and explores the use of BNNSs as fillers in polymer-based materials. The aim of this review is to inspire new fabrication methods and improvements for BNNS/polymer composites and promote their practical application as thermal transport/dissipation materials.
PROGRESS IN MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Zhiyuan Zhang, Yuting Luo, Kun Wang, Qiangmin Yu, Xin Kang, Yingqi Liu, Ke Xie, Zhengxing Lv, Zhibo Liu, Fengning Yang, Heming Liu, Ke Liu, Jiong Li, Guangmin Zhou, Wencai Ren, Hui-Ming Cheng, Jia Li, Shuo Zhang, Bilu Liu
Summary: Rational design of pre-catalysts is crucial for efficient catalysis, especially during surface reconstruction. This study presents a surface engineering strategy to form highly active surfaces on Ni-based catalysts (NiMo) under oxygen evolution reaction (OER) conditions. In situ X-ray absorption spectroscopy and theoretical calculations demonstrate that the Fe-O-5 species anchored on Ni oxyhydroxide are easily oxidized under OER conditions, enhancing the reducibility of Ni active sites. This catalyst shows a remarkable increase in intrinsic activity and a decrease in full cell voltage compared to the NiMo and IrO2 catalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Xi Wu, Fawei Zheng, Feiyu Kang, Jia Li
Summary: By using density functional theory calculations, we have identified the stable intercalated structure and the evolution of band structures in the intercalation process of Li into bilayer graphene. Our work shows that the Dirac cone of bilayer graphene can be modulated by using the generalized N/ N/ Kekule order, which opens a gap or splits the electron and hole pocket, contributed by the Kekule-O and Kekule-Y distortion respectively. This study provides valuable insights for the investigation of Li-intercalated bilayer graphene in experiments.
Article
Chemistry, Physical
Donggun Kim, Ye Fan, Srikanth Mateti, Yimin Chen, Xin Hu, Qiran Cai, Baozhi Yu, Ying (Ian) Chen
Summary: Researchers developed a void-free design using inorganic-gel hybrid electrolyte and in-situ polymeric interlayers to improve the performance of solid-state lithium batteries.
Correction
Chemistry, Physical
Chen Luo, Yan Shao, Hua Yu, Hong-zhi Ma, Yu-hao Zhang, Long Gu, Bo Yin, Ming-bo Yang
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Stefano Borocci, Armando Camerlingo, Felice Grandinetti, Maria Rutigliano, Nico Sanna
Summary: The complexes of He, Ne, Ar, Kr, and Xe with B3N3H6 were investigated using MP2, CCSD(T), and SAPT ab initio methods. The complexes can be described as mono-, di-, and tri-coordinated to the N atoms, with stability following the order N-mono < N-di < N-tri. The interactions are dominated by dispersion and the binding energies are within the range of 1 or 2 kcal mol(-1). The results were compared with a recent DFT study on larger BN sheets complexes [Phys. Chem. Chem. Phys. 24 (2022) 2554-2566.].
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
V. Nagarajan, R. Bhuvaneswari, R. Chandiramouli
Summary: In this study, stable phosphoborane was used as a sensor to detect isobutane and n-propane in Liquefied Petroleum Gas (LPG). Phosphoborane demonstrated structural stability and semiconducting nature, and exhibited promising adsorption properties for the LPG molecules.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xiaoxi Xu, Zijiang Yang, Bayaer Buren, Maodu Chen
Summary: In this study, the time-dependent wave packet method was used to investigate the reaction channels and mechanisms of Ca+ + HD. The results show that the CaH+ + D reaction channel plays a primary role, which is consistent with experimental results. Complex forming and direct-abstraction reaction mechanisms exist in this reaction process.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Keshab Pandey, Hae Kyung Jeong
Summary: A free-standing silicon-carbon nanofiber composite film was synthesized and investigated for supercapacitor applications. It exhibited high specific capacitance, energy density, and power density. After 5000 cycles, the film showed excellent specific capacitance retention and Coulombic efficiency.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Xinyu Zhang, Haosong Li, Xiaoyu Cao, Jing Gao, Yong Wei, Jianzhuo Zhu
Summary: The evaporation behavior of nanosized water aggregations on two-dimensional electroneutral solid surfaces with different surface polar unit densities was investigated. The results showed that the evaporation rate changes non-monotonically with the surface polar unit density, and the minimum evaporation rate is obtained when the surface has a modest surface polar unit ratio of 66.7%.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Yanyan Xu, Rui Dai, Xiaojie Wang, Zhijun Qiao, Haowei Wen, Dianbo Ruan, Yuzuo Wang
Summary: This article presents an innovative solvothermal sodium insertion method for synthesizing Triphylite-NaFePO4, which demonstrates optimal electrochemical performance in sodium-ion batteries.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Meiyi Jiang, Kun Yang, Yancheng Liu, Li Yao
Summary: The geometric structure and electronic properties of transition metal M (M = Cu, Fe, Mn)-TiO2 (101) surface adsorbed by NO2 and N2O were calculated by density functional theory (DFT) and DFT + U theory. The results showed that the adsorption of NO2 and N2O on Mn and Fe atoms is more stable, and a large number of active electrons are formed around these atoms, facilitating the catalytic reactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Sergey A. Vyrko, Yulia G. Polynskaya, Nikita A. Matsokin, Andrey M. Popov, Andrey A. Knizhnik, Nikolai A. Poklonski, Yurii E. Lozovik
Summary: In this study, carbon nanobracelets, which are cyclic molecules composed of alternating polycyclic regions and double carbon chains, were investigated using spin-polarized density functional theory. The results show that carbon nanobracelets with odd number of monomers exhibit distinct electronic energy levels, band gaps, and carbon chain deformation compared to those with even number of monomers.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Chanchan Wang, Quan Yang, Yanzhi Ding, Xiaoyong Lu, Dong Tian
Summary: It has been found that the introduction of buffer layers improves the electrical performance of solid oxide fuel cells (SSOFCs). In this study, varying ratios of Gd-doped CeO2 were used as buffer layers in YSZ-based SSOFCs. The results demonstrate that the performance of SSOFCs is enhanced when a buffer layer is added, with the highest performance achieved using Ce0.8Gd0.2O2-delta (GDC20) as the buffer layer. This suggests that the use of GDC series buffer layers is an attractive strategy to optimize performance loss due to electrolyte-electrode interactions.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Wang Li, Yi-Fan Zhang, Jia-Bin Huang, Chang-Yang Wang, Feng Zhang, Jiu-Zhong Yang, Long Zhao
Summary: The gas-phase reaction of propargyl with vinylacetylene was investigated using synchrotron photoionization and molecular-beam mass spectrometry methodologies. The formation mechanisms of the resulting cyclic structures were examined using quantum computations. Two previously unidentified isomers were detected and identified for the first time.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Avijit Pramanik, Sanchita Kundu, Olorunsola Praise Kolawole, Kaelin Gates, Paresh Chandra Ray
Summary: This study investigates the influence of aspect ratio and quantum confinement on the single-photon and two-photon absorption cross-section of perovskite CsPbI3 nanorods. Experimental data shows that CsPbI3 nanorods have an extremely high two-photon absorption cross-section, significantly surpassing organic chromophores and other CsPbBr3 nanocrystals. Moreover, adjusting the aspect ratio can significantly enhance the absorption ability. Additionally, the study also reveals a moderate quantum confinement effect on the single-photon and two-photon absorption cross-section of the nanorods.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Hyon-Tae Pak, Jin-A Choe, Kyong-Sik Ju, Yong -Son Rim
Summary: Drug-loaded cellulose diacetate (CDA) membranes were prepared using different compositions of mixed solvent. The microstructure and performance of the membranes were investigated, and a method to predict drug release properties was proposed. The results showed that the composition of the mixed solvent significantly affected the overall performance of CDA membranes, and the release rates of drugs were related to Δdelta and the intrinsic viscosity of CDA.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Gabriella E. Ravin, E. Curotto
Summary: We have developed a systematic approach to optimize the training set sizes for neural networks in fitting ab initio potential energy surfaces. Using this approach, we have constructed several spectroscopic quality potential energy surfaces for [Li(H2)n]+, n = 1 - 9. The ground state properties have been computed for all the systems and selected states.
CHEMICAL PHYSICS LETTERS
(2024)
Article
Chemistry, Physical
Guohua Xu, Lei Xu, Feng Zhang, Chunling Yu, Yu Song
Summary: NiS1.03@Ni7S6/carbon composite was successfully prepared using corn stalk as a carbon source via a simple adsorption-sulphurization process. The composite exhibited a specific capacitance of 1554.6 F/g at 1 A/g as a supercapacitor electrode, with a capacitance retention rate of 80.4% after 5000 cycles. Furthermore, the NiS1.03@Ni7S6/carbon//AC asymmetric supercapacitor showed a high energy density of 41.2 Wh kg-1 at a power density of 750 W kg-1, and excellent cycling stability with 86.8% capacitance retention after 10,000 cycles.
CHEMICAL PHYSICS LETTERS
(2024)
