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| 1 | 3D Porous MXene Aerogel through Gas Foaming for Multifunctional PressureSensor显示文摘The development of smart wearable electronic devices puts forward higher requirements for future flexible electronics. The design of highly sensitive and high-performance flexible pressure sensors plays an important role in promoting the development of flexible electronic devices. Recently, MXenes with excellent properties have shown great potential in the field of flexible electronics. However, the easy-stacking inclination of nanomaterials limits the development of their excellent properties and the performance improvement of related pressure sensors. Traditional methods for constructing 3D porous structures have the disadvantages of complexity, long period, and difficulty of scalability. Here, the gas foaming strategy is adopted to rapidly construct 3D porous MXene aerogels. Combining the excellent surface properties of MXenes with the porous structure of aerogel, the prepared MXene aerogels are successfully used in high-performance multifunctional flexible pressure sensors with high sensitivity (306 kPa^(-1)), wide detection range (2.3 Pa to 87.3 kPa), fast response time (35 ms), and ultrastability (>20,000 cycles), as well as self-healing, waterproof, cold-resistant, and heat-resistant capabilities. MXene aerogel pressure sensors show great potential in harsh environment detection, behavior monitoring, equipment recovery, pressure array identification, remote monitoring, and human-computer interaction applications. | Yongfa Cheng Li Li Zunyu Liu Shuwen Yan Feng Cheng Yang Yue Shuangfeng Jia Jianbo Wang Yihua Gao Luying Li | 2022 | Research2022，，4： | 1 |
| 2 | Study of the growth mechanism of a self‑assembled and ordered multi‑dimensional heterojunction at atomic resolution显示文摘Multi-dimensional heterojunction materials have attracted much attention due to their intriguing properties,such as high efciency,wide band gap regulation,low dimensional limitation,versatility and scalability.To further improve the performance of materials,researchers have combined materials with various dimensions using a wide variety of techniques.However,research on growth mechanism of such composite materials is still lacking.In this paper,the growth mechanism of multidimensional heterojunction composite material is studied using quasi-two-dimensional(quasi-2D)antimonene and quasione-dimensional(quasi-1D)antimony sulfde as examples.These are synthesized by a simple thermal injection method.It is observed that the consequent nanorods are oriented along six-fold symmetric directions on the nanoplate,forming ordered quasi-1D/quasi-2D heterostructures.Comprehensive transmission electron microscopy(TEM)characterizations confrm the chemical information and reveal orientational relationship between Sb2S3 nanorods and the Sb nanoplate as substrate.Further density functional theory calculations indicate that interfacial binding energy is the primary deciding factor for the self-assembly of ordered structures.These details may fll the gaps in the research on multi-dimensional composite materials with ordered structures,and promote their future versatile applications. | Zunyu Liu Chaoyu Zhao Shuangfeng Jia Weiwei Meng Pei Li Shuwen Yan Yongfa Cheng Jinshui Miao Lei Zhang Yihua Gao Jianbo Wang Luying Li | 2023 | Frontiers of Optoelectronics2023，16，4： | 0 |
| 3 | An Air‑Rechargeable Zn Battery Enabled by Organic–Inorganic Hybrid Cathode显示文摘Self-charging power systems collecting energy harvesting technology and batteries are attracting extensive attention.To solve the disadvantages of the traditional integrated system,such as highly dependent on energy supply and complex structure,an airrechargeable Zn battery based on MoS_(2)/PANI cathode is reported.Benefited from the excellent conductivity desolvation shield of PANI,the MoS_(2)/PANI cathode exhibits ultra-high capacity(304.98 mAh g^(−1) in N_(2) and 351.25 mAh g^(−1) in air).In particular,this battery has the ability to collect,convert and store energy simultaneously by an airrechargeable process of the spontaneous redox reaction between the discharged cathode and O2 from air.The air-rechargeable Zn batteries display a high open-circuit voltage(1.15 V),an unforgettable discharge capacity(316.09 mAh g^(−1) and the air-rechargeable depth is 89.99%)and good air-recharging stability(291.22 mAh g^(−1) after 50 air recharging/galvanostatic current discharge cycle).Most importantly,both our quasi-solid zinc ion batteries and batteries modules have excellent performance and practicability.This work will provide a promising research direction for the material design and device assembly of the next-generation self-powered system. | Junjie Shi Ke Mao Qixiang Zhang Zunyu Liu Fei Long Li Wen Yixin Hou Xinliang Li Yanan Ma Yang Yue Luying Li Chunyi Zhi Yihua Gao | 2023 | Nano-Micro Letters2023，15，4： | 0 |
| 4 | Study of structure-property relationship of semiconductor nanomaterials by off-axis electron holography显示文摘As the scaling down of semiconductor devices, it would be necessary to discover the structure-property relationship of semiconductor nanomaterials at nanometer scale. In this review, the quantitative characterization technique off-axis electron holography is introduced in details, followed by its applications in various semiconductor nanomaterials including group IV, compound and two-dimensional semiconductor nanostructures in static states as well as under various stimuli. The advantages and disadvantages of off-axis electron holography in material analysis are discussed, the challenges facing in-situ electron holographic study of semiconductor devices at working conditions are presented, and all the possible influencing factors need to be considered to achieve the final goal of fulfilling quantitative characterization of the structure-property relationship of semiconductor devices at their working conditions. | Luying Li Yongfa Cheng Zunyu Liu Shuwen Yan Li Li Jianbo Wang Lei Zhang Yihua Gao | 2022 | Journal of Semiconductors2022，43，4： | 0 |
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