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Enhanced performance of monocrystalline silicon solar cells using sol-gel synthesized zinc stannate anti-reflective coating via electro-spraying technique

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Ceramics International 2025年第8期51卷 10899-10912页

作者： Mostafa, Ayman M. Velu Kaliyannan, Gobinath Gunasekaran, Raja El-Tayeb, Zaynb Rao, Subha Krishna Al-Ahmadi, Ameenah N. Darwish, A.A.A. Younes, Ayman A.O. Elsharkawy, Wafaa B. Palaniappan, Sathish Kumar Department of Physics College of Science Qassim University P.O. Box 6644 Almolaydah Buraydah51452 Saudi Arabia Department of Mechatronics Engineering Kongu Engineering College Perundurai Tamil Nadu Erode638060 India Department of Mechanical Engineering Velalar College of Engineering and Technology Tamil Nadu Erode638012 India Department of Physics Faculty of Science Taibah University Yanbu46423 Saudi Arabia Centre for Nanoscience and Nanotechnology International Research Centre Sathyabama Institute of Science and Technology Tamil Nadu Chennai600119 India Department of Physics College of Sciences Umm Al-Qura University Makkah24382 Saudi Arabia Advanced Materials Research Laboratory Department of Physics Faculty of Science University of Tabuk Tabuk71491 Saudi Arabia Department of Chemistry College of Science University of Bisha Bisha 61922 Saudi Arabia Pysics Department College of Science and Humanities Prince Sattam Bin Abdulaziz University Alkharj11942 Saudi Arabia Natural Composites Research Group Lab Department of Materials and Production Engineering The Sirindhorn International Thai-German Graduate School of Engineering King Mongkut's University of Technology North Bangkok Bangsue Bangkok10800 Thailand

The current situation necessitates advancements in renewable energy to serve as a viable alternative to traditional energy sources. The photovoltaic cells can entirely change the need for fossil fuels since they can transform light energy into electrical energy. The reflection loss in photovoltaic cells is a contributing factor to reduced power conversion efficiency that could be mitigated by using antireflective coatings on the surface of the solar cells. This study examines the deposition of zinc stannate (ZnSnO3) as an efficient antireflective material to improve light capturing capability and it is synthesized by sol-gel method. The electro spraying method was employed to deposit the ZnSnO3 layers on photovoltaic cells. The ZnSnO3 AR material was uniformly distributed on the solar substrate at 2 ml/h for 1 h (Z1), 2 h (Z2), 3 h (Z3) and 4 h (Z4) respectively. The impact of ZnSnO3 ARC on the structural, electrical, absorbance, reflectance characteristics and temperature variation in monocrystalline silicon (m-Si) solar cells was examined. The optical properties were determined by UV–visible spectroscopy technique. At a wavelength (300–800 nm), the ZnSnO3 coated for 3 h (Z3 specimen) exhibited highest absorbance of 92.65 % and the lowest electrical resistivity of 3.69 × 10−3 Ω-cm. When compared with bare and various ZnSnO3 coated cells, Z3 specimen showed a significant impact on solar cell efficiency. In direct solar radiation and stimulated light, the Z3 specimen achieved the maximum power conversion efficiency (PCE) of 21.16 % and 25.11 %. The findings indicated that ZnSnO3 could be a suitable AR coating material for reducing incoming photon reflection. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Antireflection coatings

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Nanoscale phase management of the 2D/3D heterostructure toward efficient perovskite solar cells

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science Bulletin 2024年第18期69卷 2853-2861页

作者： Hao Gu Annan Zhu Junmin Xia Wang Li Jiahao Zheng Tao Yang Shengwen Li Nan Zhang Shiliang Mei Yongqing Cai Shi Chen Chao Liang Guichuan Xing Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoMacao 999078China State Key Laboratory of Organic Electronics and Information Displays&Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts&Telecommunications(NUPT)Nanjing 210023China MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of PhysicsNational Innovation Platform(Center)for Industry-Education Integration of Energy Storage TechnologyXi’an Jiaotong UniversityXi’an 710049China Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic SystemsHarbin Institute of TechnologyShenzhen 518055China Institute for Electric Light Sources School of Information Science and TechnologyFudan UniversityShanghai 200433China

The stabilization of the formamidinium lead iodide(FAPbI_(3))structure is pivotal for the development of efficient photovoltaic *** two-dimensional(2D)layers to passivate the threedimensional(3D)perovskite is essential for maintaining the a-phase of FAPbI_(3) and enhancing the power conversion efficiency(PCE)of perovskite solar cells(PSCs).However,the role of bulky ligands in the phase management of 2D perovskites,crucial for the stabilization of FAPbI_(3),has not yet been *** this study,we synthesized nanoscale 2D perovskite capping crusts with=1 and 2 Ruddlesden-Popper(RP)perovskite layers,respectively,which form a type-Ⅱ 2D/3D *** heterostructure stabilizes the a-phase of FAPbI_(3),and facilitates ultrafast carrier extraction from the 3D perovskite network to transport contact *** introduced tri-fluorinated ligands to mitigate defects caused by the halide vacancies and uncoordinated Pb^(2+)ions,thereby reducing nonradiative carrier recombination and extending carrier *** films produced were incorporated into PSCs that not only achieved a PCE of 25.39%but also maintained 95%of their initial efficiency after 2000 h of continuous light exposure without *** findings underscore the effectiveness of a phase-pure 2D/3D heterostructure-terminated film in inhibiting phase transitions passivating the iodide anion vacancy defects,facilitating the charge carrier extraction,and boosting the performance of optoelectronic devices.

关键词： Phase-pure 2D perovskite 2D/3D heterostructure Type-II energy alignment Carrier dynamic FAPbI_(3)

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Extended calculations of energy levels and transition properties for Sn XIV-XXI

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Journal of Quantitative Spectroscopy and Radiative Transfer 2025年 344卷

作者： Zhang, X.W. Qu, F.H. Li, B.L. Wu, Y.T. Liu, X. Xie, Y.M. Xiao, J. Shanghai EBIT Lab Institute of Modern Physics Department of Nuclear Science and Technology Fudan University Shanghai 200433 China Shanghai Optoelectronics Science and Technology Innovation Center Shanghai 200120 China

Highly-charged tin ions (Sn HCIs) are key sources of extreme ultraviolet (EUV) radiation used in advanced nanolithography. This work presents a comprehensive study of energy levels, transition rates, and oscillator strength for Sn XIV-XXI, calculated using relativistic configuration interaction (RCI) and relativistic many-body perturbation theory (RMBPT) methods within the flexible atomic code (FAC) package. The computational results are compared with available reference data, achieving good agreement for the majority of Sn XIV-XXI. Transition data discrepancies are noted for Sn XIV and XVI, but RCI results agree well with reference data for Sn XV and Sn XVII-XIX. This study provides an extensive dataset, demonstrating that Sn XVII-XX, in addition to the previously recognized Sn XI-XIV, may contribute to ∼13.5 nm radiation. The use of multiple methods enhances understanding of Sn ion properties, aiding spectral identification, plasma modeling, and industrial light source optimization. © 2025 Elsevier Ltd

关键词： Perturbation techniques

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Ultrafast coherent phonon dynamics in the kagome magnet GdV6Sn6

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Physical Review B 2025年第5期111卷 054308-054308页

作者： Juntao Fu Yadong Han Yuting Wang Huangyu Wu Yunfang Yang Rongxiao Du Jianzhou Zhao Hang Zhang Junhong Yu State Key Laboratory for Environment-Friendly Energy Materials Southwest University of Science and Technology Mianyang 621010 China Laboratory for Shock Wave and Detonation Physics Institute of Fluid Physics China Academy of Engineering Physics Mianyang 621900 China Co-Innovation Center for New Energetic Materials Southwest University of Science and Technology Mianyang 621010 China School of Science Southwest University of Science and Technology Mianyang 621010 China Centre for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE) School of Physics Beijing Institute of Technology Beijing 100081 China Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems Beijing Institute of Technology Beijing 100081 China

The kagome intermetallic compound RV6Sn6 (R=rare earth) not only supports unique lattice geometries and nontrivial topological band structures but also exhibits long-range magnetic order at low temperatures, providing an ideal platform for studying interactions among electrons, phonons, and magnetism. Phonons play a crucial role in the coupling between magnetic order and topological fermions, whose dynamics are essential for understanding the complex multiple degrees of freedom interaction in RV6Sn6. In this work we systematically investigate the temperature-dependent coherent phonon dynamics of GdV6Sn6, and two characteristic temperature points have been identified (i.e., Te at ∼100K and Tm at ∼5K). Specifically, we have observed the anomalous softening and suppressed decaying of the Ag4 phonon mode when approaching Te, which may result from the change of density of states near the Fermi surface, while around Tm, the hardening and accelerated decaying of the Ag4 phonon mode emerges since the buildup of magnetic order alters the phonon energy renormalization and opens an additional scattering channel.

关键词： Fermions

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Quantum many-body scar models in one-dimensional spin chains

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Physical Review B 2024年第12期109卷 125102-125102页

作者： Jia-Wei Wang Xiang-Fa Zhou Guang-Can Guo Zheng-Wei Zhou CAS Key Lab of Quantum Information University of Science and Technology of China Hefei 230026 China Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China Hefei 230026 China Hefei National Laboratory University of Science and Technology of China Hefei 230088 China

The phenomenon of quantum many-body scars has received widespread attention both in theoretical and experimental physics in recent years due to its unique physical properties. In this paper, based on the su(2) algebraic relations, we propose a general method for constructing scar models by combining simple modules. This allows us to investigate many-body scar phenomena in high-spin systems. We numerically verify the thermalization and nonintegrability of this model and demonstrate the dynamical properties of the scar states. We also provide a theoretical analysis of the properties of these scar states. For spin-1 case, we find that our 1D chain model reduces to the famous PXP model [C. J. Turner et al., Phys. Rev. B 98, 155134 (2018)] under special parameter conditions. In addition, due to the continuous tunability of the parameters, our model also enables us to investigate the transitions of quantum many-body scar phenomena from nonintegrable to integrable system.

关键词： Eigenstate thermalization Quantum scars Approximation methods for many-body systems Exact diagonalization Spin chains

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Dual-doping for enhancing chemical stability of functional anionic units in sulfide for high-performance all-solid-state lithium batteries

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Journal of Energy Chemistry 2023年第11期86卷 382-390,I0009页

作者： Peiwen Yu Niaz Ahmad Jie Yang Chaoyuan Zeng Xiaoxiao Liang Weiming Huang Mei Ni Pengcheng Mao Wen Yang Key Laboratory of Cluster Science of Ministry of Education Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China Analysis&Testing Center Beijing Institute of TechnologyBeijing 100081China Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources Hainan Provincial Key Lab of Fine ChemistrySchool of Chemical Engineering and TechnologyHainan UniversityHaikou 570228HainanChina Department of Basic Courses China Fire and Rescue InstituteBeijing 102202China College of Chemistry Jilin UniversityChangchun 130012JilinChina Key Laboratory of Physics and Technology for Advanced Batteries of Ministry of Education Jilin UniversityChangchun 130012JilinChina Southern Marine Science and Engineering Guangdong Lab(Zhanjiang) Zhanjiang 524002GuangdongChina

The sulfide-based solid-state electrolytes(SEs)reactivity toward moisture and Li-metal are huge barriers that impede their large-scale manufactu ring and applications in all-solid-state lithium batteries(ASSLBs).Herein,we proposed an Al and O dual-doped strategy for Li_(3)PS_(4)SE to regulate the chemical/electrochemical stability of anionic PS_(4)^(3-)tetrahedra to mitigate structural hydrolysis and parasitic reactions at the SE/Li *** optimized Li_(3.08)A_(10.04)P_(0.96)S_(3.92)O_(0.08)SE presents the highestσLi+of 3.27 mS cm^(-1),which is~6.8 times higher than the pristine Li_(3)PS_(4)and excellently inhibits the structural hydrolysis for~25 min@25%humidity at *** calculations confirmed that the enhanced chemical stability was revealed to the intrinsically stable entities,e.g.,***,Li_(3.08)Al_(0.04)P_(0.96)S_(3.92)O_(0.08)SE cycled stably in Li//Li symmetric cell over 1000 h@0.1 mA cm^(-2)/0.1 mA h cm^(-2),could be revealed to Li-Al alloy and Li_(2)Oat SE/Li interface impeding the growth of Li-dendrites during ***,LNO@LCO/Li_(3.08)Al_(0.04)P_(0.96)S_(3.92)O_(0.08)/Li-In cell delivered initial discharge capacities of 129.8 mA h g^(-1)and 83.74%capacity retention over 300 cycles@0.2 C at ***,the Li_(3.08)Al_(0.04)P_(0.96)S_(3.92)O_(0.08)SE presented>90%capacity retention over 200 and 300 cycles when the cell was tested with LiNi_(0.8)Co_(0.15)Al_(0.05)O_(2)(NCA)cathode material vs.5 and 10 mg cm^(-2)@RT.

关键词： Dual doping High Li^(+) conductivity Air-stability Pos_(3)^(3-) functional units Stable SE/electrode interface

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Joint AP Clustering and Beamforming Design for RIS-Aided Cell-Free Networks

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IEEE Transactions on Vehicular technology 2025年第5期74卷 8315-8320页

作者： Xu, Chunmei Jia, Yuanqi Chen, Youjia Huang, Wei GuildfordGU2 7XH United Kingdom Southeast University School of Information Science and Engineering Nanjing210096 China Fuzhou University Fujian Key Lab for Intelligent Processing and Wireless Transmission of Media Information College of Physics and Information Engineering Fuzhou350108 China Hefei University of Technology School of Computer Science and Information Engineering Hefei230601 China

Cell-free networks and reconfigurable intelligent surfaces (RIS) are two promising techniques for future wireless communications. The integration of RIS into cell-free networks, termed RIS-aided cell-free networks, offers the potential to significantly enhance network performance. However, the realization of this potential is constrained by the limited capacities of the fronthaul links. To address this challenge, we investigate the joint design of access point (AP) clustering, transmit and passive beamforming in RIS-aided cell-free networks. The objective is to maximize the weighted sum-rate performance while minimizing the number of clustered APs to alleviate the fronthaul overhead. The problem is formulated in a group sparse manner, employing a mixed zero-norm/two-norm term to represent the number of the clustered APs. To solve this problem, we first approximate the mixed zero-norm/two-norm term by the mixed one-norm/two-norm term and provide its equivalent formulation by introducing receive beamforming vectors and weight parameters. Then, an iterative method is proposed based on the block coordinate descent (BCD) technique, which is guaranteed to converge to a stationary point. Simulation results demonstrate the effectiveness of the proposed method. © 1967-2012 IEEE.

关键词： Iterative methods

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Numerical demonstration of tunable multi-channel optical parametric amplifier using difference-frequency generation in a PPLN waveguide 15

Numerical demonstration of tunable multi-channel optical par...

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15th International Conference on Information Optics and Photonics, CIOP 2024

作者： Hu, Zhefeng Fan, Mengyao Gao, Leyao Hao, Yanwei Li, Zihao Chen, Kaixin Sun, Wenbao Song, Qianqian School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China Chengdu611731 China Tianjin Jinhang Technical Physics Institute Tianjin300308 China Research Center for Frontier Fundamental Studies Zhejiang Lab Hangzhou311100 China

A tunable multi-channel optical parametric amplifier (OPA) using difference-frequency generation (DFG) in a periodically poled lithium niobate (PPLN) waveguide is proposed and simulated. The number of the channels can... 详细信息

ISBN: (数字)9781510686175

ISBN: (纸本)9781510686168

关键词： Nonlinear optics

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Copper naphthalocyanine-based hole-transport material for highperformance and thermally stable perovskite solar cells

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science China Chemistry 2024年第8期67卷 2701-2709页

作者： Yue Qiang Huaiman Cao Yuzhen Pan Yi Chi Liangyu Zhao Yingguo Yang Hai-Bei Li Yan Gao Licheng Sun Ze Yu State Key Laboratory of Fine Chemicals Frontier Science Center for Smart MaterialsDalian University of Technology(DUT).Dalian 116024China School of Chemistry Dalian University of Technology(DUT)Dalian 116024China School of Microelectronics Fudan UniversityShanghai 200433China Shanghai Synchrotron Radiation Facility(SSRF) Zhangjiang LabShanghai Advanced Research InstituteShanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China School of Ocean Shandong UniversityWeihai 264209China Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry School of ScienceWestlake UniversityHangzhou 310024China Department of Chemistry School of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of Technology Stockholm 10044Sweden

Metal phthalocyanines(MPcs) have gained considerable research attention as hole-transport materials(HTMs) in perovskite solar cells(PSCs) because of their superb stability. However, the photovoltaic performance of MPc-based HTMs in PSCs is still lagging behind their small molecule and polymeric counterparts, largely due to their relatively low hole mobility. Here, we report for the first time the application of a copper naphthalocyanine derivative(namely t Bu-Cu Nc) as a hole-transport material(HTM)in perovskite solar cells(PSCs), and systematically study its optoelectronic and photovoltaic property compared with its Cu Pc analog(t Bu-Cu Pc). Combined experiments disclose that the extension of π-conjugation from Pc to Nc core leads to not only an enhanced hole-carrier mobility associated with a stronger intermolecular interaction, but also an elevated glass transition temperature(T_g) of 252 °C. The resultant PSCs employing t Bu-Cu Nc deliver an excellent power conversion efficiency of 24.03%, which is the record efficiency reported for metal complex-based HTMs in PSCs. More importantly, the encapsulated t Bu-Cu Nc-based devices also show dramatically improved thermal stability than the devices using the well-known SpiroOMe TAD, with a T_(80)lifetime for more than 1,000 h under damp-heat stress. This study unfolds a new avenue for developing efficient and stable HTMs in PSCs.

关键词： hole-transport materials perovskite solar cells copper naphthalocyanine extendedπ-conjugation thermal stability

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A general and facile calcination method to synthesize single-site catalysts for highly efficient electrochemical CO_(2) reduction

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Nano Research 2024年第5期17卷 3895-3901页

作者： Rui Sui Bingyan Wang Yongsheng Wang Jiajing Pei Wei Zhu Wenxing Chen Chunhui Li Ailing Sun Zhongbin Zhuang Engineering Research Center of Advanced Rare Earth Materials Department of ChemistryTsinghua UniversityBeijing 100084China College of Chemistry and Green Catalysis Center Zhengzhou UniversityZhengzhou 450001China State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Energy&Catalysis Center School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China

The electrochemical CO_(2) reduction reaction(CO_(2)RR)has received widespread attention as a promising method for producing sustainable chemicals and mitigating the global ***,we demonstrate a general and facile synthetic route for the metal-nitrogen-carbon(M-N-C)type catalyst by simply calcinating metal acetate and urea with commercial carbon black,which have potential application in CO_(2)*** synthesized Ni-NC-600 catalyst has the structure of single Ni atom coordinated with one N atom and three C atoms(Ni-N_(1)C_(3)),which is suggested by X-ray absorption *** Ni-NC-600 catalyst exhibits high CO_(2)RR catalytic performance and a high CO Faraday efficiency above 98%in a wide potential range from-0.7 to-1.3 V(*** hydrogen electrode(RHE)),superior to most of the reported Ni-N-C *** work has developed a facile strategy to synthesize high performance CO_(2)RR catalyst.

关键词： nickel single atom catalyst CO_(2)reduction reaction CO production electrocatalyst

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