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Suppressing the Interface Photodegradation towards Efficient and Stable All Perovskite Tandem Solar Cells

Angewandte Chemie - International Edition 2025年 e202424825页

作者： Lin, Zhuojia Chen, Jianwei Fan, Kezhou Yi, Jicheng Chen, Honggang Zou, Shibing Min, Hongyu Xu, Yitong Yu Lam, Man Aleksandr, Sergeev A. Wong, Kam Sing Yan, He Yan, Keyou School of Environment and Energy State Key Laboratory of Luminescent Materials and Devices Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials. Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling South China University of Technology Guangzhou510000 China Department of Physics and William Mong Institute of Nano Science and Technology The Hong Kong University of Science and Technology Clear Water Bay Kowloon 999077 Hong Kong Guangdong-Hong Kong Joint Laboratory for Carbon Neutrality Jiangmen Laboratory of Carbon Science and Technology Guangdong Province Jiangmen529199 China Department of Chemistry and Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction Hong Kong University of Science and Technology Clear Water Bay Kowloon 999077 Hong Kong

All perovskite tandem solar cells (PTSCs) were expected to overcome the Shockley-Queisser limit of single-junction perovskite solar cells (PSCs). Nevertheless, wide bandgap (WBG) subcells suffer from large photovoltage loss and device instability due to extensive film defect, interfacial degradation and phase segregation. Herein, a polymeric multi-dentate anchoring (PMDA) strategy by introducing poly(carbazole phosphonic acid) was employed to engineer the bottom interface and suppress phase segregation. The reinforced and homogeneous anchorage by multiple repeat phosphonic acid groups onto NiOx significantly optimised the bottom interface, suppressing unfavourable interfacial reactions and thus alleviating phase segregation of WBG perovskite. As a result, the PMDA-modified WBG PSCs showed higher power conversion efficiency (PCE) than the control device (19.84% vs. 18.18%), along with better device photostability (T80 = 1200 vs. 500 h). Coupled with narrow bandgap (NBG) PSCs, the PMDA-modified PTSCs reached a PCE of up to 28.51% with device operation photostability over 700 h (T80). © 2025 Wiley-VCH GmbH.

关键词： Photodegradation

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Photoemission Spectroscopic Evidence for the Dirac Nodal Line in the Monoclinic Semimetal SrAs3

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Physical Review Letters 2020年第5期124卷 056402-056402页

作者： Y. K. Song G. W. Wang S. C. Li W. L. Liu X. L. Lu Z. T. Liu Z. J. Li J. S. Wen Z. P. Yin Z. H. Liu D. W. Shen Center for Excellence in Superconducting Electronics State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China School of Physical Science and Technology ShanghaiTech University Shanghai 200031 China Department of Physics and Center for Advanced Quantum Studies Beijing Normal University Beijing 100875 China National Laboratory of Solid State Microstructures and Department of Physics Nanjing University Nanjing 210093 China University of Chinese Academy of Sciences Beijing 100049 China Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China

Topological nodal-line semimetals with exotic quantum properties are characterized by symmetry-protected line-contact bulk band crossings in the momentum space. However, in most of identified topological nodal-line compounds, these topological nontrivial nodal lines are enclosed by complicated topological trivial states at the Fermi energy (EF), which would perplex their identification and hinder further applications. Utilizing angle-resolved photoemission spectroscopy and first-principles calculations, we provide compelling evidence for the existence of Dirac nodal-line fermions in the monoclinic semimetal SrAs3, which possesses a simple nodal loop in the vicinity of EF without the distraction from complicated trivial Fermi surfaces. Our calculations revealed that two bands with opposite parities were inverted around Y near EF, resulting in the single nodal loop at the Γ−Y−S plane with a negligible spin-orbit coupling effect. The band crossings were tracked experimentally and the complete nodal loop was identified quantitatively, which provide a critical experimental support for the existence of nodal-line fermions in the CaP3 family of materials. Hosting simple topological nontrivial bulk electronic states around EF and without complication from the trivial states, SrAs3 is expected to be a potential platform for topological quantum state investigation and applications.

关键词： Electronic structure Fermi surface Topological materials Angle-resolved photoemission spectroscopy

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Self-powered electronic paper with energy supplies and information inputs solely from mechanical motions

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Photonics research 2020年第9期8卷 1496-1505页

作者： YIFAN GU TINGTING HOU PENG CHEN JINXIN CAO CHONGXIANG PAN WEIGUO HU BO-RU YANG XIONG PU AND ZHONG LIN WANG State Key Laboratory of Optoelectronic Materials and Technologies Guangdong Province Key Laboratory of Display Material and Technologyand School of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou 510006China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China Center on Nanoenergy Research School of Physical Science and TechnologyGuangxi UniversityNanning 530004China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGeorgia 30332USA

The electronic paper(E-paper)displays features such as flexibility,sunlight visibility,and low power consumption,which makes it ideal for Internet of Things(IoT)applications where the goal is to eliminate bulky power ***,we report a unique self-powered E-paper(SPEP),where information inputs and energy supplies are all converted from mechanical motion by a triboelectric nanogenerator(TENG).The operation of an electrophoretic E-paper is first investigated,identifying the current density as a determinative parameter for driving pigment particle motion and color *** and optical responses of the E-paper driven by a slidingmode TENG are then found to be consistent with that under a current source ***-in-one monochromic and chromatic SPEPs integrated with a flexible transparent TENG are finally demonstrated,and a pixelated SPEP is discussed for future *** sliding-driven mechanism of SPEP allows for a potential handwriting function,is free of an extra power supply,and promises undoubtedly a wide range of future applications.

关键词： electronic visibility doubt

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Study of the morphology evolution of AlN grown on nanopatterned sapphire substrate

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Journal of Semiconductors 2019年第12期40卷 130-134页

作者： Zhuohui Wu Jianchang Yan Yanan Guo Liang Zhang Yi Lu Xuecheng Wei Junxi Wang Jinmin Li Research and Development Center for Solid State Lighting Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Beijing Engineering Research Center for the 3rd Generation Semiconductor Materials and Application Beijing 100083China State Key Laboratory of Solid-State Lighting Beijing 100083China

This study focused on the evolution of growth front about AlN growth on nano-patterned sapphire substrate by metal-organic chemical vapor *** substrate with concave cones was fabricated by nano-imprint lithography and wet *** samples with different epitaxy procedures were fabricated,manifesting as two-dimensional growth mode and three-dimensional growth mode,*** results showed that growth temperature deeply influenced the growth modes and thus played a critical role in the coalescence of *** a relatively high temperature,the AlN epilayer was progressively coalescence and the growth mode was *** this case,we found that the inclined semi-polar facets arising in the process of coalescence were{112^-1}*** when decreasing the temperature,the{112^-2}semi-polar facets arose,leading to inverse pyramid morphology and obtaining the three-dimensional growth *** 3 D inverse pyramid AlN structure could be used for realizing 3 D semi-polar UV-LED or facet-controlled epitaxial lateral overgrowth of AlN.

关键词： AlN epitaxial lateral overgrowth growth front evolution 2D and 3D growth modes MOCVD

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Cu-based bimetallic catalysts for CO2 reduction reaction

Advanced Sensor and Energy Materials

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Advanced Sensor and Energy materials 2022年第3期1卷 61-77页

作者： Xi-Qing Wang Qin Chen Ya-Jiao Zhou Hong-Mei Li Jun-Wei Fu Min Liu Hunan Joint International Research Center for Carbon Dioxide Resource Utilization State Key Laboratory of Powder MetallurgySchool of Physics and ElectronicsCentral South UniversityChangsha 410083China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450002China

Electrocatalytic CO2 reduction reaction(CO2RR)is one of the effective means to realize CO2 resource *** the high-efficiency metal-based catalysts,Cu is a star material profiting from its ability for CO2 reduction into valuable hydrocarbon ***,due to the difficulty in activating CO2 and regulating intermediate adsorption/desorption properties,the CO2RR activity and selectivity of Cu-based catalysts still cannot meet the requirements of industrial *** design of Cu-based bimetallic catalysts is a potential strategy because the introduction of the second metal can well promote the activation of CO2 and break the linear scaling relationship in intermediate adsorption/*** this review,the synergistic enhancements of Cu-based bimetals on CO2 activation and intermediate adsorption/desorption are analyzed in detail,including the advantages caused by the morphology of Cu-based bimetallic catalysts,the local electric field effect induced by the special nanoneedle structure,the interface engineering(strain effect,atomic arrangement,interface regulation),and other particular effects(electronic effect and tandem effect).Finally,the challenges and perspectives on the development of Cu-based bimetallic catalysts for CO2 reduction are proposed.

关键词： Cu Bimetallic catalysts CO2 reduction reaction Strain effect Tandem effect

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Field Demonstration of Distributed Quantum Sensing without Post-Selection

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Physical Review X 2021年第3期11卷 031009-031009页

作者： Si-Ran Zhao Yu-Zhe Zhang Wen-Zhao Liu Jian-Yu Guan Weijun Zhang Cheng-Long Li Bing Bai Ming-Han Li Yang Liu Lixing You Jun Zhang Jingyun Fan Feihu Xu Qiang Zhang Jian-Wei Pan Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics University of Science and Technology of China Hefei 230026 People’s Republic of China Shanghai Branch CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of China Shanghai 201315 People’s Republic of China Shanghai Research Center for Quantum Sciences Shanghai 201315 People’s Republic of China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 People’s Republic of China Shenzhen Institute for Quantum Science and Engineering and Department of Physics Southern University of Science and Technology Shenzhen 518055 People’s Republic of China Key Laboratory of Space Active Opto-electronics Technology Chinese Academy of Sciences Shanghai 200083 People’s Republic of China

Distributed quantum sensing can provide quantum-enhanced sensitivity beyond the shot-noise limit (SNL) for sensing spatially distributed parameters. To date, distributed quantum sensing experiments have mostly been accomplished in laboratory environments without a real space separation for the sensors. In addition, the post-selection is normally assumed to demonstrate the sensitivity advantage over the SNL. Here, we demonstrate distributed quantum sensing with discrete variables in field and show the unconditional violation (without post-selection) of SNL up to 0.916 dB for the field distance of 240 m. The achievement is based on a loophole-free Bell test setup with entangled photon pairs at the averaged heralding efficiency of 73.88%. Moreover, to test quantum sensing in real life, we demonstrate the experiment for long distances (with 10-km fiber), together with the sensing of a completely random parameter. The results represent an important step towards a practical quantum sensing network for widespread applications.

关键词： Quantum metrology Quantum sensing

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Cation-mixing stabilized layered oxide cathodes for sodium-ion batteries

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science Bulletin 2018年第6期63卷 376-384页

作者： Shaohua Guo Yang Sun Pan Liu Jin Yi Ping He Xiaoyu Zhang Yanbei Zhu Ryosuke Senga Kazu Suenaga Mingwei Chen Haoshen Zhou Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures Nanjing University Energy Technology Research Institute National Institute of Advanced Industrial Science and Technology (AIST) State Key Laboratory of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University National Metrology Institute of Japan National Institute of Advanced Industrial Science and Technology (AIST) Nanotube Research Center National Institute of Advanced Industrial Science and Technology (AIST)

Sodium-ion batteries are promising for large-scale energy storage due to sodium's low cost and infinite abundance. The most popular cathodes for sodium-ion batteries, i.e., the layered sodium-containing oxides, usually exhibit reversible host rearrangement between P-type and O-type stacking upon charge/discharge. Herein we demonstrate that such host rearrangement is unfavorable and can be suppressed by introducing transition-metal ions into sodium layers. The electrode with stabilized P3-type stacking delivers superior rate capability, high energy efficiency, and excellent cycling performance. Owing to the cation-mixing nature, it performs the lowest lattice strain among all reported cathodes for sodium-ion batteries. Our findings highlight the significance of a stable host for sodium-ion storage and moreover underline the fundamental distinction in material design strategy between lithium-and sodium-ion batteries.

关键词： Sodium-ion battery Layered cathodes Host arrangement Cation-mixing Stabilized framework Lowest lattice strain

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Sandwich-like Catalyst–Carbon–Catalyst Trilayer Structure as a Compact 2D Host for Highly Stable Lithium–Sulfur Batteries

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Advanced materials 2020年第29期132卷 12227-12236页

作者： Li, Rongrong Peng, Hongjie Wu, Qingping Zhou, Xuejun He, Jiang Shen, Hangjia Yang, Minghui Li, Chilin State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences 585 He Shuo Road Shanghai201899 China Solid-State Functional Materials Research Laboratory Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo315201 China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing100049 China Department of Chemical Engineering Stanford University StanfordCA94305 United States Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing100083 China

Herein, we propose the construction of a sandwichstructured host filled with continuous 2D catalysis–conduction interfaces. This MoN-C-MoN trilayer architecture causes the strong conformal adsorption of S/Li2Sx and its high-efficiency conversion on the two-sided nitride polar surfaces, which are supplied with high-flux electron transfer from the buried carbon interlayer. The 3D self-assembly of these 2D sandwich structures further reinforces the interconnection of conductive and catalytic networks. The maximized exposure of adsorptive/ catalytic planes endows the MoN-C@S electrode with excellent cycling stability and high rate performance even under high S loading and lowhost surface area. The high conductivity of this trilayer texture does not compromise the capacity retention after the S content is increased. Such a job-synergistic mode between catalytic and conductive functions guarantees the homogeneous deposition of S/Li2Sx, and avoids thick and devitalized accumulation (electrode passivation) even after high-rate and long-term cycling. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

关键词： Molybdenum compounds

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Theoretical study on adsorption and reaction of polymeric formic acid on the Cu(111) surface

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Physical Review materials 2021年第7期5卷 075801-075801页

作者： Septia Eka Marsha Putra Fahdzi Muttaqien Yuji Hamamoto Kouji Inagaki Akitoshi Shiotari Jun Yoshinobu Yoshitada Morikawa Ikutaro Hamada Department of Precision Engineering Graduate School of Engineering Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan Department of Engineering Physics Institut Teknologi Sumatera Jalan Terusan Ryacudu Way Hui Jati Agung South Lampung 35365 Indonesia Instrumentation and Computational Physics Research Group Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung Jalan Ganesha 10 Bandung West Java 40132 Indonesia Master Program in Computational Science Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung Jalan Ganesha 10 Bandung West Java 40132 Indonesia Elements Strategy Initiative for Catalysts and Batteries (ESICB) Kyoto University Goryo-Ohara Nishikyou-ku Katsura Kyoto 615-8245 Japan Department of Advanced Materials Science The University of Tokyo 5-1-5 Kashiwanoha Kashiwa Chiba 277-8561 Japan The Institute for Solid State Physics The University of Tokyo 5-1-5 Kashiwanoha Kashiwa Chiba 277-8581 Japan Research Center for Precision Engineering Graduate School of Engineering Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan

We investigate the polymeric adsorption of formic acid (HCOOH) on the Cu(111) surface by means of density functional theory. We present structural models for the polymeric form of HCOOH on Cu(111) and characterize their stability, electronic, and vibrational properties. Based on the energetics and dynamics, as well as simulated scanning tunneling microscopy and atomic force microscopy images, we propose that the α polymorph is likely to be formed on the Cu(111) surface and can explain the experimental findings. We also study the initial step of the catalytic dehydrogenation of HCOOH and find that the O-H bond dissociation at the edge of the polymer is facilitated, rather than that forming hydrogen bonding, agreeing well with the experiments.

关键词： Adsorption Chemical bonding Chemical kinetics, dynamics & catalysis Electronic structure Surface & interfacial phenomena Surfaces Density functional theory First-principles calculations

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Search for lepton portal dark matter in the PandaX-4T experiment

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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 2025年 864卷

作者： Ning, Xuyang Bo, Zihao Chen, Wei Chen, Xun Chen, Yunhua Cheng, Zhaokan Cui, Xiangyi Fan, Yingjie Fang, Deqing Gao, Zhixing Geng, Lisheng Giboni, Karl Guo, Xunan Guo, Xuyuan Guo, Zichao Han, Chencheng Han, Ke He, Changda He, Jinrong Huang, Di Huang, Houqi Huang, Junting Hou, Ruquan Hou, Yu Ji, Xiangdong Ji, Xiangpan Ju, Yonglin Li, Chenxiang Li, Jiafu Li, Mingchuan Li, Shuaijie Li, Tao Li, Zhiyuan Lin, Qing Liu, Jianglai Lu, Congcong Lu, Xiaoying Luo, Lingyin Luo, Yunyang Ma, Wenbo Ma, Yugang Mao, Yajun Meng, Yue Pang, Binyu Qi, Ningchun Qian, Zhicheng Ren, Xiangxiang Shan, Dong Shang, Xiaofeng Shao, Xiyuan Shen, Guofang Shen, Manbin Sun, Wenliang Tao, Yi Wang, Anqing Wang, Guanbo Wang, Hao Wang, Jiamin Wang, Lei Wang, Meng Wang, Qiuhong Wang, Shaobo Wang, Siguang Wang, Wei Wang, Xiuli Wang, Xu Wang, Zhou Wei, Yuehuan Wu, Weihao Wu, Yuan Xiao, Mengjiao Xiao, Xiang Xiong, Kaizhi Xu, Yifan Yao, Shunyu Yan, Binbin Yan, Xiyu Yang, Yong Ye, Peihua Yu, Chunxu Yuan, Ying Yuan, Zhe Yun, Youhui Zeng, Xinning Zhang, Minzhen Zhang, Peng Zhang, Shibo Zhang, Shu Zhang, Tao Zhang, Wei Zhang, Yang Zhang, Yingxin Zhang, Yuanyuan Zhao, Li Zhou, Jifang Zhou, Jiaxu Zhou, Jiayi Zhou, Ning Zhou, Xiaopeng Zhou, Yubo Zhou, Zhizhen Bai, Yang Tsung-Dao Lee Institute Shanghai Jiao Tong University Shanghai 201210 China School of Physics and Astronomy Shanghai Jiao Tong University Shanghai 200240 China State Key Laboratory of Dark Matter Physics Key Laboratory for Particle Astrophysics and Cosmology (MoE) Shanghai Key Laboratory for Particle Physics and Cosmology New Cornerstone Science Laboratory Shanghai Jiao Tong University Shanghai 200240 China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213 China Jinping Deep Underground Frontier Science and Dark Matter Key Laboratory of Sichuan Province Liangshan 615000 China Yalong River Hydropower Development Company Ltd. 288 Shuanglin Road Chengdu 610051 China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen University Zhuhai 519082 China Department of Physics Yantai University Yantai 264005 China Key Laboratory of Nuclear Physics Ion-beam Application (MOE) Institute of Modern Physics Fudan University Shanghai 200433 China School of Physics Beihang University Beijing 102206 China Peng Huanwu Collaborative Center for Research and Education Beihang University Beijing 100191 China International Research Center for Nuclei and Particles in the Cosmos Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang University Beijing 100191 China Southern Center for Nuclear-Science Theory (SCNT) Institute of Modern Physics Chinese Academy of Sciences Huizhou 516000 China SJTU Paris Elite Institute of Technology Shanghai Jiao Tong University Shanghai 200240 China School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China Department of Physics University of Maryland College Park 20742 MD United States School of Physics Nankai University Tianjin 300071 China School of Physics Sun Yat-Sen University Guangzhou 510275 China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Hefei 230026 China Department of Mod

We report a search for a lepton-portal dark matter model, where dark matter couples to a charged lepton in the standard model. This simplified model naturally leads to photon-mediated dark matter interactions with nuclei, making it suitable for direct dark matter detection experiments. Matching to the framework of non-relativistic effective field theory for dark matter, we report the first sensitive search for this model using data from the PandaX-4T commissioning run. Our results yield strong constraints on Dirac fermion dark matter but relatively weaker constraints on Majorana dark matter due to the suppression of effective photon interactions. These constraints complement those obtained from the collider and indirect detection experiments. © 2025 The Author(s)

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