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Research 2024年第2期2023卷 181-190页

作者： Wenming Chai Lindong Li Weidong Zhu Dazheng Chen Long Zhou He Xi jincheng zhang Chunfu zhang Yue Hao State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology&Shaanxi Joint Key Laboratory of Graphene School of MicroelectronicsXidian UniversityXi'anShaanxi 710071China Xi'an Baoxin Solar Technology Co. Ltd.Xi'an710071China

Wide-bandgap(WBG)perovskite solar cells(PSCs)are essential for highly efficient and stable silicon/perovskite tandem solar *** this study,we adopted a synthetic strategy with lead thiocyanate(Pb(SCN)_(2))additive and methylammonium chloride(MACl)posttreatment to enhance the crystallinity and improve the interface of WBG perovskite films with a bandgap of 1.68 *** excessive PbI_(2)was formed at grain boundaries and converted into MAPbI_(3-x)Cl_(x)perovskites,which are utilized to form the graded heterojunction(GHJ)and compressive *** is beneficial for passivating nonradiative recombination defects,suppressing halide phase segregation,and facilitating carrier ***,the device with GHJ delivered a champion efficiency of 20.30%and superior stability in ambient air and under 85℃.Finally,we achieved a recorded efficiency of 30.91%for 4-terminal WBG perovskite/TOPCon tandem silicon solar *** findings demonstrate a promising approach for fabricating efficient and stable WBG PSCs through the formation of GHJ.

关键词： perovskite Graded Highly

Nanotherapeutics targeting autophagy regulation for improved cancer therapy

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Acta Pharmaceutica Sinica B 2024年第6期14卷 2447-2474页

作者： Yunmeng Liu Yaxin Wang jincheng zhang Qikai Peng Xingdong Wang Xiyue Xiao Kai Shi College of Pharmacy Nankai UniversityTianjin 300350China

The clinical efficacy of current cancer therapies falls short,and there is a pressing demand to integrate new targets with conventional ***,a highly conserved self-degradation process,has received considerable attention as an emerging therapeutic target for *** the rapid development of nanomedicine,nanomaterials have been widely utilized in cancer therapy due to their unrivaled delivery ***,considering the potential benefits of integrating autophagy and nanotechnology in cancer therapy,we outline the latest advances in autophagy-based *** on a brief background related to autophagy and nanotherapeutics and their impact on tumor progression,the feasibility of autophagy-based nanotherapeutics for cancer treatment is ***,emerging nanotherapeutics developed to modulate autophagy are reviewed from the perspective of cell signaling pathways,including modulation of the mammalian target of rapamycin(mTOR)pathway,autophagy-related(ATG)and its complex expression,reactive oxygen species(ROS)and mitophagy,interference with autophagosome-lysosome fusion,and inhibition of hypoxia-mediated *** addition,combination therapies in which nano-autophagy modulation is combined with chemotherapy,phototherapy,and immunotherapy are also ***,the prospects and challenges of autophagy-based nanotherapeutics for efficient cancer treatment are envisioned.

关键词： Autophagy regulation Nanotherapeutic Combination strategies Cancer therapy Signal transduction pathway Delivery strategies Dual effects Nanomaterials

Accelerated Sequential Deposition Reaction via Crystal Orientation Engineering for Low-Temperature,High-Efficiency Carbon-Electrode CsPbBr3 Solar Cells

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Energy & Environmental Materials 2024年第1期7卷 172-179页

作者： Zeyang zhang Weidong Zhu Tianjiao Han Tianran Wang Wenming Chai Jiaduo Zhu He Xi Dazheng Chen Gang Lu Peng Dong jincheng zhang Chunfu zhang Yue Hao State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology & Shaanxi Joint Key Laboratory of Graphene School of Microelectronics Xidian University Guangzhou Wide Bandgap Semiconductor Innovation Center Guangzhou institute of technology Xidian University Qinghai Huanghe Hydropower Development CO. LTD.

Low-temperature,ambient processing of high-quality CsPbBr3films is demanded for scalable production of efficient,low-cost carbon-electrode perovskite solar cells（PSCs）.Herein,we demonstrate a crystal orientation engineering strategy of PbBr2precursor film to accelerate its reaction with CsBr precursor during two-step sequential deposition of CsPbBr3films.

关键词： carbon-electrode perovskite solar cells crystal orientation engineering CsPbBr3 low temperature two-step sequential deposition

Current collapse suppressed GaN diodes with 38 Watts high RF power rectifier capability

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Science China(Information Sciences) 2024年第2期67卷 335-336页

作者： Kui DANG Zhilin QIU Shudong HUO Peng ZHAN Huining LIU Yachao zhang Jing NING Hong ZHOU jincheng zhang Key Lab of Ministry of Education for Wide Band-Gap Semiconductor Materials and Devices School of MicroelectronicsXidian University Guangzhou Wide Bandgap Semiconductor Innovation Center Guangzhou Institute of TechnologyXidian University

Microwave power transmission(MPT) could realize the point-to-point long-distance transfer of energy without any wires, which makes it attractive for solar-powered satellites,drones, and implantable medical devices, and has aroused enormous attention [1]. Microwave rectifiers could convert RF(radio frequency) energy into DC(direct current) power,

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High-Al-composition AlGaN/GaN MISHEMT on Si with fT of 320 GHz

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Science China(Information Sciences) 2024年第6期67卷 459-460页

作者： Hanghai DU Lu HAO Zhihong LIU Zeyu SONG Yachao zhang Kui DANG Jin ZHOU Jing NING Zan LI jincheng zhang Yue HAO State Key Laboratory of Wide Bandgap Semiconductor Devices and Integrated Technology School of MicroelectronicsXidian University Guangzhou Wide Bandgap Semiconductor Innovation Center Guangzhou Institute of TechnologyXidian University State Key Laboratory of Integrated Services Networks School of Communication EngineeringXidian University

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Multifunctional solar-blind ultraviolet photodetectors based on p-PCDTBT/n-Ga_(2)O_(3)heterojunction with high photoresponse

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InfoMat 2024年第2期6卷 118-130页

作者： Yifei Wang Zhenhua Lin Jingli Ma Yongyi Wu Haidong Yuan Dongsheng Cui Mengyang Kang XingGuo Jie Su Jinshui Miao Zhifeng Shi Tao Li jincheng zhang Yue Hao Jingjing Chang State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology School of MicroelectronicsXidian UniversityXi'anthe People's Republic of China School of Physics and Microelectronics Key Laboratory of Material PhysicsMinistry of EducationZhengzhou UniversityZhengzhouthe People's Republic of China Center for Spintronics and Quantum Systems State Key Laboratory for Mechanical Behavior of MaterialsDepartment of Materials Science and EngineeringXi'an Jiaotong UniversityXi'anthe People's Republic of China Advanced Interdisciplinary Research Center for Flexible Electronics Xidian UniversityXi'anthe People's Republic of China State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghaithe People's Republic of China

Solar-blind ultraviolet(UV)photodetectors based on p-organic/n-Ga_(2)O_(3) hybrid heterojunctions have attracted extensive attention ***,the multifunctional solar-blind photodetector based on p-type poly[N-90-heptadecanyl-2,7-carbazole-alt-5,5-(40,70-di-2-thienyl-20,10,30-benzothiadiazole)](PCDTBT)/n-type amorphous Ga_(2)O_(3)(a-Ga_(2)O_(3))is fabricated and investigated,which can work in the phototransistor mode coupling with self-powered *** the introduction of PCDTBT,the dark current of such the a-Ga_(2)O_(3)-based photodetector is decreased to 0.48 ***,the photoresponse parameters of the a-Ga_(2)O_(3)-based photodetector in the phototransistor mode to solar-blind UV light are further increased,that is,responsivity(R),photo-detectivity(D*),and external quantum efficiency(EQE)enhanced to 187 A W^(-1),1.3×10^(16) Jones and 9.1×10^(4)% under the weak light intensity of 11μW cm^(-2),*** to the formation of the built-in field in the p-PCDTBT/n-Ga_(2)O_(3) type-Ⅱ heterojunction,the PCDTBT/Ga_(2)O_(3) multifunctional photodetector shows self-powered *** responsivity of p-PCDTBT/n-Ga_(2)O_(3) multifunctional photodetector is 57.5 mA W^(-1) at zero *** multifunctional p-n hybrid heterojunction-based photodetectors set the stage for realizing high-performance amorphous Ga_(2)O_(3) heterojunction-based photodetectors.

关键词： amorphous Ga_(2)O_(3) heterojunction multifunctional PCDTBT solar-blind photodetectors

High-Al-composition AlGaN/GaN MISHEMT on Si with fof 320 GHz

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Science China(Information Sciences) 2024年

作者： Hanghai DU Lu HAO Zhihong LIU Zeyu SONG Yachao zhang Kui DANG Jin ZHOU Jing NING Zan LI jincheng zhang Yue HAO Guangzhou Wide Bandgap Semiconductor Innovation Center Guangzhou Institute of TechnologyXidian University State Key Laboratory of Integrated Services Networks School of Communication EngineeringXidian University State Key Laboratory of Wide Bandgap Semiconductor Devices and Integrated Technology School of MicroelectronicsXidian University

GaN-based metal-insulator-semiconductor high-electronmobility-transistors (MISHEMTs) have many excellent performances compared with the Si and GaA s counterparts,and are prime candidates for applications in communication base stations, radars, and satellites. Most of the current GaNRF transistors for the below Ka-band applications adopt a conventional AlGaN/GaN heterostructure with a typical Al-composition from 0.25 to 0.3 for the barrier layer. For higher frequency applications, the thin barrier AlN/GaN heterojunction or InA lN/GaN heterojunction is preferred [1].

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《野草》:鲁迅的生命之维

鲁迅研究月刊 2024年第2期 89-95,100页

作者：张金城华南师范大学文学院 510006 广东机电职业技术学院 510515

《野草》研究有待继续深入的意义有二:一是从学术出发,总结前人研究成果的共性以及各自的独创性,在既有基础上,扩大《野草》研究的共识领域;二是从思想出发,探讨鲁迅在《野草》中体现的哲学高度和精神体系,思索《野草》作为鲁迅心灵窗... 详细信息

《野草》研究有待继续深入的意义有二:一是从学术出发,总结前人研究成果的共性以及各自的独创性,在既有基础上,扩大《野草》研究的共识领域;二是从思想出发,探讨鲁迅在《野草》中体现的哲学高度和精神体系,思索《野草》作为鲁迅心灵窗户所提供的个人省思、自我拷问的思维方式,寻求其对当代知识分子和中国文化的价值和意义。

关键词：鲁迅《野草》生命维度当代

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几种煤气发电干法烟气治理工艺对比

冶金动力 2024年第3期 107-110页

作者：张金成中冶京诚工程技术有限公司北京100176

钢铁行业内脱硫、脱硝工艺种类较多,每种工艺均有其自身的特性,应用场景各有不同,运行参数及运行成本也存在较大区别。通过对钢铁厂燃气发电系统超低排放治理的SCR配套钠基干法脱硫烟气治理系统、SCR配套钙基固定床干法脱硫烟气治理系... 详细信息

钢铁行业内脱硫、脱硝工艺种类较多,每种工艺均有其自身的特性,应用场景各有不同,运行参数及运行成本也存在较大区别。通过对钢铁厂燃气发电系统超低排放治理的SCR配套钠基干法脱硫烟气治理系统、SCR配套钙基固定床干法脱硫烟气治理系统以及固定床一体化脱硫、脱硝烟气治理系统的工艺适用性、运行参数、运行成本的对比分析,为不同企业选择具体实施路径提供参考。

关键词：发电脱硫钠基干法脱硫钙基干法脱硫固定床

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回流区稳定燃烧的近熄火特性理论分析

力学学报 2024年第1期56卷 298-304页

作者：汪洪波连城阅张锦成曾宇杨揖心王亚男国防科技大学空天科学学院高超声速技术实验室长沙410073

基于火焰稳定在回流区剪切层中的假设,建立了预混火焰近贫燃熄火极限特性的理论分析模型.一旦火焰稳定在剪切层中,由于剪切层同时从两侧卷吸流体,所以进入火焰的流体将是自由流与回流区流体的混合物.如果是贫燃火焰,回流区流体由燃烧产... 详细信息

基于火焰稳定在回流区剪切层中的假设,建立了预混火焰近贫燃熄火极限特性的理论分析模型.一旦火焰稳定在剪切层中,由于剪切层同时从两侧卷吸流体,所以进入火焰的流体将是自由流与回流区流体的混合物.如果是贫燃火焰,回流区流体由燃烧产物和多余的氧化剂组成而没有燃料,因此进入剪切层火焰的混合物当量比将低于自由流的当量比.如此一来,即使自由来流是可燃的,剪切层中混合物的当量比也可能超出可燃极限.分析表明,对于回流区稳定的贫燃火焰,进入剪切层火焰的混合物有效当量比将低于自由来流的当量比.根据理论分析建立了近贫燃熄火极限的回流区稳定燃烧模式图,其中涉及4个参数:自由来流当量比、剪切层卷吸比、吹熄极限和再点火极限.分析揭示出4种可能的燃烧模式:超稳定火焰、亚稳定火焰、振荡火焰和熄火.特别地,在参数空间发现了一个振荡区,它可能为近吹熄火焰引入一种新的固有不稳定性机制.在这种机制中,剪切层中的当量比振荡实际上是由燃烧过程本身驱动的,因为火焰的位置/振荡影响着进入回流区的流体成分进而影响剪切层中的当量比.因此,当量比振荡与燃烧过程之间的反馈循环由于周期性的火焰吹熄和闪回/再稳定而得以封闭.

关键词：回流区贫燃熄火稳定振荡

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