Article
Engineering, Biomedical
Xiaochan Li, Boon Chin Heng, Yunyang Bai, Qianqian Wang, Min Gao, Ying He, Xinwen Zhang, Xuliang Deng, Xuehui Zhang
Summary: The study confirms the dose-response effect of surface electrical charge on SHED neural differentiation and provides insights into the underlying molecular mechanisms and signaling pathways involved.
BIOACTIVE MATERIALS
(2023)
Article
Physics, Multidisciplinary
Zhi Tan, Hui Zhang, Xiaojun Wu, Jie Xing, Qiming Zhang, Jianguo Zhu
Summary: In this study, the potential for high piezoelectricity in the nonperovskite carbon-boron clathrate ScB3C3 is demonstrated using first-principles calculations. The highly symmetric B-C cage with mobilizable Sc atom constructs a flat potential valley, allowing for easy, continuous, and strong polarization rotation. By manipulating the cell parameter b, the potential energy surface can be flattened to produce an extra-high shear piezoelectric constant d15 of 9424 pC/N. The significance of large polarization and high symmetric polyhedron structure is shown, providing universal physical principles for the search of new high-performance piezoelectrics.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Shuguan Li, Fang Chen, Shengqi Chu, Zeyu Zhang, Jindi Huang, Shengyao Wang, Yibo Feng, Cong Wang, Hongwei Huang
Summary: This study develops a coupled strategy of ferroelectric poling and cationic vacancy to achieve high-performance CO2 photoreduction on ferroelectric Bi2MoO6, and discloses their interesting synergy-compensation relationship. The corona poling enhances the intrinsic electric field for charge separation, while the introduced Mo vacancy facilitates the adsorption and activation of CO2 by creating local electric field. Coupling poling and V-Mo not only integrates their advantages but also compensates for their shortcomings.
Article
Energy & Fuels
Juran Kim, Ha Kyung Park, Yunae Cho, Sammi Kim, Kee-Jeong Yang, Dae-Hwan Kim, Jin-Kyu Kang, William Jo
Summary: In this study, the optimization process of NaF layers in CZTSSe films deposition was investigated, and the effects of Na on the growth and carrier transport of kesterite were studied.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Chemistry, Physical
Huipeng Ma, Feng Lin, Shibo Cheng, Jin-Dou Huang
Summary: In this study, the electronic structures and conducting properties of BN-embedded perylene diimides (B2N2-PDIs) were systematically investigated. The substitution of C-C units with B-N units in the pi-electron core was found to significantly affect the reorganization energies, ionization potential, and electron affinity of the PDIs. It was also revealed that B2N2-PDIs have the potential to be developed as high-efficiency n-type organic semiconductor materials. Additionally, the three-dimensional angular resolution anisotropic mobility of 6-CH, 6-EH, and 6-DIPP was simulated for the first time, and their charge carrier-transport properties were characterized.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Environmental
Shuai Mao, Guoying Yao, Peng Liu, Chun Liu, Yi Wu, Zhoutian Ding, Chao Ding, Mingzhu Xia, Fengyun Wang
Summary: Transition metal oxide-mediated activation of peroxymonosulfate (PMS) for organic pollutant degradation has gained considerable attention. In this study, a composite PMS activator of S-doped g-C3N4/NiCo2O4 was developed, showing efficient degradation of tetracycline (TC) with a removal efficiency of 96.9% within 30 minutes. The introduction of sulfur doping widened the work function difference and enhanced the electric field intensity of the heterojunctions between g-C3N4 and NiCo2O4, promoting directional electron transfer and accelerating the redox cycle to generate reactive oxygen species (ROS). Experimental and theoretical analyses revealed that the main ROS involved in TC degradation were 1O2, generated through the conversion of SO4-, OH•, and O2•-. Additionally, high-valent cobalt-oxo species (CoIV = O) also contributed to TC degradation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Multidisciplinary Sciences
Haoying Sun, Jierong Wang, Yushu Wang, Changqing Guo, Jiahui Gu, Wei Mao, Jiangfeng Yang, Yuwei Liu, Tingting Zhang, Tianyi Gao, Hanyu Fu, Tingjun Zhang, Yufeng Hao, Zhengbin Gu, Peng Wang, Houbing Huang, Yuefeng Nie
Summary: By transferring freestanding BaTiO3 membranes onto silicon, a prototype of ferroelectric domain wall memory with distinct in-plane multidomain structures and high reading currents has been successfully demonstrated. This highlights the great potential of integrating perovskite oxides with silicon for ferroelectric domain wall memories.
NATURE COMMUNICATIONS
(2022)
Article
Engineering, Environmental
Jinwei Bai, Rui-Ting Gao, Xiaotian Guo, Jinlu He, Xianhu Liu, Xueyuan Zhang, Lei Wang
Summary: This study successfully improved the efficiency of photoelectrochemical water splitting by introducing gradient Ce-doped hematite nanorods and conducting a photoactivation process. The gradient Ce doping increased the conductivity of the material and constructed a built-in electric field, enhancing charge separation and transfer. Additionally, surface polarization reduced overpotential and increased photocurrent density.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Biru Liao, Xiaomin Liao, Huiyuan Xie, Yuanchu Qin, Yi Zhu, Yang Yu, Sen Hou, Yuanming Zhang, Xiaoyun Fan
Summary: This study successfully synthesized SrBi2Ta2O9 ferroelectric photocatalysts with different morphologies through a molten salt method, which were used for efficient degradation of antibiotics. With the addition of KCl, SBTO 3 with exposed (001) facets showed excellent photocatalytic activity for decomposing tetracycline and ciprofloxacin. The rate constants of SBTO 3 for TC and CIP degradation were 18 and 138 times higher than the unmodified sample, respectively. DFT calculation and LC-MS analysis were used to investigate the degradation pathways and intermediates of the antibiotics.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Xiaolei Zhao, Wenqiang Gao, Juannan Chen, Chao Cui, Xiaowen Su, Ning Xi, Xiao Li Zhang, Chunming Wang, Xiaowen Yu, Yuanhua Sang
Summary: In this study, a Au/BiFeO3/TiO2 ternary heterostructure was prepared, which showed a 4.6-fold higher photocurrent density than the pure TiO2 photoanode for the oxygen evolution reaction. The enhancement was attributed to the synergistic effect of the ferroelectric polarization electric field and the ternary heterostructure, which effectively promoted the separation and utilization of photo-induced charge carriers.
MATERIALS TODAY COMMUNICATIONS
(2023)
Review
Materials Science, Multidisciplinary
Seema Morab, Manickam Minakshi Sundaram, Almantas Pivrikas
Summary: Organic semiconductors offer a promising solution to overcome the limitations of inorganic semiconductors by providing low-cost, flexible, and lightweight alternatives. This review provides a thorough overview of charge carrier transport in organic semiconductors, focusing on the underlying physical mechanisms and their impact on device performance. Insights into the fundamental principles governing charge carrier behavior in these materials are also presented.
Article
Physics, Applied
Moritz L. Muller, Maximilian T. Becker, Nives Strkalj, Judith L. MacManus-Driscoll
Summary: We demonstrate resistive switching and memristive behavior in devices consisting of ultrathin semiconducting ferroelectric films. The semiconducting nature of the films results in different current-voltage characteristics compared to tunnel junctions utilizing ultrathin insulating ferroelectric films. The devices show a polarization-modulated transition from Schottky-barrier-controlled charge transport to Ohmic conduction, leading to a high on/off ratio. Additionally, voltage pulse train measurements reveal a broad range of accessible resistance states, indicating the memristive behavior of the devices. These results are an important step towards the development of future nonvolatile memory and brain-inspired neuromorphic computing applications based on ultrathin semiconducting ferroelectric films.
APPLIED PHYSICS LETTERS
(2022)
Article
Physics, Applied
Yijin Zhang, Rei Taniguchi, Satoru Masubuchi, Rai Moriya, Kenji Watanabe, Takashi Taniguchi, Takao Sasagawa, Tomoki Machida
Summary: In this study, an out-of-plane shift current was observed and electrically controlled in a two-dimensional ferroelectric material. The results are significant for the study of Berry connection physics and the development of optoelectronic devices.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Raffaele Resta
Summary: Faraday's experiment measures the adiabatic transport of charge in insulating liquids, with integers deeply rooted in topology. Atomic oxidation states, though important in chemistry, are not directly measurable. Topology plays a major role in ionic conductivity in insulating liquids.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Gayea Hyun, Shengkai Cao, Youngjin Ham, Doo-Young Youn, Il-Doo Kim, Xiaodong Chen, Seokwoo Jeon
Summary: In this study, a density-graded composite electrode with tailored pore networks was demonstrated to effectively reduce energy loss at high charging rates, thus enhancing the rapid charging capability of lithium-ion batteries.
Article
Chemistry, Multidisciplinary
Weijie Chen, Dong Li, Xu Chen, Haiyang Chen, Shuo Liu, Haidi Yang, Xinqi Li, Yunxiu Shen, Xuemei Ou, Yang (Michael) Yang, Lin Jiang, Yaowen Li, Yongfang Li
Summary: Constructing monolithic two-terminal tandem solar cells using complementary properties of various photoactive layers, and improving charge recombination efficiency through surface reconstruction of all-inorganic perovskite, resulted in high power conversion efficiency and enhanced stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Qingqing Li, Lianmin Chen, Mingyu Guo, Zhijun Hu
Summary: This study presents a method for preparing extremely stretchable and tough piezoelectric gels by swelling poly(ethylene glycol) (PEG)-based poly(urethane-urea) (PUU) gels with aqueous solution of molecular ferroelectrics. These composite gels exhibit unique mechanical properties and excellent piezoelectric properties, showing great potential for various applications in the future.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Polymer Science
Xiangyi Meng, Qingqing Li, Zhijun Hu, Mingyu Guo
Summary: β-phase enriched PVDF microfibers were prepared for the first time using microfluidic spinning technology. The resulting fibers were weaved into flexible piezoelectric fabrics for in-situ and real-time human motion monitoring. This study provides a promising approach for the development of functional microfibers and wearable piezoelectric sensors.
JOURNAL OF POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Ben Zhang, Fu Yang, Shanshan Chen, Haiyang Chen, Guang Zeng, Yunxiu Shen, Yaowen Li, Yongfang Li
Summary: The study found that the non-Newtonian fluid feature of conjugated polymer affects the efficiency of large-scale solar cell modules, but a new deposition method successfully addressed this issue, achieving high efficiency in large-scale solar cell modules.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Polymer Science
Jing-Hua Zhao, Bao-Sheng He, Ao-Shen Li, Chao-Nan Wang, Qing-Qing Li, Zhi-Jun Hu
Summary: This study demonstrates a simple and low-cost approach to obtain piezoelectric PVDF films by directly hot-pressing PVDF films sandwiched between chitosan or cellulose films. The electrostatic interactions between PVDF and chitosan or cellulose enable a high content of polar phases and a measured piezoelectric charge coefficient. The findings have important implications for the development of sensors, actuators, and energy harvesters.
CHINESE JOURNAL OF POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Guang Zeng, Weijie Chen, Xiaobin Chen, Yin Hu, Yang Chen, Ben Zhang, Haiyang Chen, Weiwei Sun, Yunxiu Shen, Yaowen Li, Feng Yan, Yongfang Li
Summary: In this study, an ionic liquid (IL)-type reducing agent containing Cl- and a dihydroxyl group was used to control the reduction process of silver (Ag) in AgNW-based FTEs, achieving atomic-level contact between AgNWs and reduced Ag, thus improving the mechanical stability and optoelectronic properties of flexible FTEs.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Polymer Science
Hui Zhang, Tongxin Chang, Shuangshuang Zhang, Kun Zhou, Wei Zhang, Zhijun Hu
Summary: This study provides experimental results on the glass transition temperature changes of nanoconfined polymers and suggests that the decreased chain density at interfaces plays a significant role.
Article
Chemistry, Physical
Jiachen Xi, Yeyong Wu, Weijie Chen, Qilong Li, Jiajia Li, Yunxiu Shen, Haiyang Chen, Guiying Xu, Heyi Yang, Ziyuan Chen, Na Li, Jian Zhu, Yaowen Li, Yongfang Li
Summary: The researchers designed and synthesized a cross-linkable molecule PETA-G to solve the issue of perovskite film degradation caused by high trap densities and moisture invasion. By combining guanidine and tri-acrylate groups, a compact network structure was formed, significantly improving the moisture resistance of the perovskite film while maintaining charge transport.
Article
Multidisciplinary Sciences
Haiyang Chen, Qinrong Cheng, Heng Liu, Shuang Cheng, Shuhui Wang, Weijie Chen, Yunxiu Shen, Xinqi Li, Haidi Yang, Heyi Yang, Jiachen Xi, Ziyuan Chen, Xinhui Lu, Hongzhen Lin, Yaowen Li, Yongfang Li
Summary: This paper reports a dielectric-screening-enhancement effect for perovskite defects by using organic semiconductors with finely tuned molecular structures. The resulting perovskite films exhibit high dielectric constant values, reduced charge capture regions, suppressed ion migration, and an efficient charge transport pathway, leading to improved efficiency and stability of perovskite solar cells.
Article
Polymer Science
Qing-Qing Li, Guang-Kuo Wang, Zi-Xu Liang, Zhi-Jun Hu
Summary: In this work, flexible and transparent piezoelectric films were successfully fabricated by incorporating DH into PVDF solution and using a scalable processing method. The films exhibited high transparency and piezoelectric performance, making them suitable for mechanical sensing and energy harvesting in transparent electronic devices.
CHINESE JOURNAL OF POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Qinrong Cheng, Haiyang Chen, Fu Yang, Ziyuan Chen, Weijie Chen, Heyi Yang, Yunxiu Shen, Xue-Mei Ou, Yeyong Wu, Yaowen Li, Yongfang Li
Summary: Researchers propose a molecular assembly strategy to improve the optoelectronic properties of organic hole transport materials (HTMs) in perovskite solar cells. The resulting cells show promising efficiency and long-term stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Weiwei Sun, Haiyang Chen, Ben Zhang, Qinrong Cheng, Heyi Yang, Ziyuan Chen, Guang Zeng, Junyuan Ding, Weijie Chen, Yaowen Li
Summary: Recent advances in non-fullerene acceptors have increased the power conversion efficiencies of organic solar cells, but the harsh fabrication conditions are not ideal for large-area printing technologies. By engineering guest molecules with different OEG repeating units, the crystallization kinetics of the active layers can be controlled effectively to achieve efficient OSCs.
CHINESE JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Heyi Yang, Yunxiu Shen, Rui Zhang, Yeyong Wu, Weijie Chen, Fu Yang, Qinrong Cheng, Haiyang Chen, Xuemei Ou, Haidi Yang, Feng Gao, Yaowen Li, Yongfang Li
Summary: A study introduces a new HTL composition-conditioning agent (CCA) to improve the efficiency and stability of perovskite solar cells (pero-SCs) based on the doped Spiro-OMeTAD hole transport layer (HTL).
ADVANCED ENERGY MATERIALS
(2022)
