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In situ seed layer bandgap engineering leading to the conduction band offset reversion and efficient Sb2Se3 solar cells with high open-circuit voltage

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Journal of energy Chemistry 2025年第2期101卷 201-212页

作者： Yanting Jiang Weiyu Wang Zhirong Chen Zhenyu Fang Qiqiang Zhu Qiao Zheng Jionghua Wu Hui Deng Weihuang Wang Shuying Cheng Fuzhou University Institute of Micronano Devices & Solar Cells College of Physics & Information Engineering Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering

Sb2Se3solar cells have achieved a power conversion efficiency（PCE） of over 10%.However,the serious open-circuit voltage deficit(VOC-deificit),induced by the hard-to-control crystal orientation and heterojunction interface reaction,limits the PCE of vapor transport deposition（VTD） processed Sb2Se3solar *** overcome the VOC-deficit problem of VTD processed Sb2Se3solar cells,herein,an in-situ bandgap regulation strategy is innovatively proposed to prepare a wide band gap Sb2（S,Se）3seed layer（WBSL） at CdS/Sb2Se3heterojunction interface to improve the PCE of Sb2Se3solar *** analysis results show that the introduced Sb2（S,Se）3seed layer can enhance the [001] orientation of Sb2Se3thin films,broaden the band gap of heterojunction interface,and realize a "Spike-like" conduction band alignment withΔEc=0.11 *** addition,thanks to the suppressed CdS/Sb2Se3interface reaction after WBSL application,the depletion region width of Sb2Se3solar cells is widened,and the quality of CdS/Sb2Se3interface and the carrier transporting performance of Sb2Se3solar cells are significantly improved as ***,the harmful Se vacancy defects near the front interface of Sb2Se3solar cells can be greatly diminished by ***,the PCE of Sb2Se3solar cells is improved from 7.0% to 7.6%;meanwhile the VOCis increased to 466 mV which is the highest value for the VTD derived Sb2Se3solar *** work will provide a valuable reference for the interface and orientation regulation of antimony-based chalcogenide solar cells.

关键词： Band gap alignment Carrier transport Crystal orientation Open circuit voltage deficit Seed-layer

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Recent Advancements in the Optimization Capacity Configuration and Coordination Operation Strategy of Wind-solar Hybrid Storage System

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energy Engineering 2025年第1期122卷 285-306页

作者： Hongliang Hao Caifeng Wen Feifei Xue Hao Qiu Ning Yang Yuwen Zhang Chaoyu Wang Edwin E.Nyakilla department of New energy Storage Peking University Ordos Research Institute of EnergyOrdos017010China School of energy and Power Engineering Inner Mongolia University of TechnologyHohhot010080China Key Laboratory of Wind energy and solar energy Utilization Technology Inner Mongolia University of TechnologyHohhot010051China

Present of wind power is sporadically and cannot be utilized as the only fundamental load of energy *** paper proposes a wind-solar hybrid energy storage system(HESS)to ensure a stable supply grid for a longer period.A multi-objective genetic algorithm(MOGA)and state of charge(SOC)region division for the batteries are introduced to solve the objective function and configuration of the system capacity,***/Simulink was used for simulation *** optimization results show that for a 0.5 MW wind power and 0.5 MW photovoltaic system,with a combination of a 300 Ah lithium battery,a 200 Ah lead-acid battery,and a water storage tank,the proposed strategy reduces the system construction cost by approximately 18,000 ***,the cycle count of the electrochemical energy storage systemincreases from4515 to 4660,while the depth of discharge decreases from 55.37%to 53.65%,achieving shallow charging and discharging,thereby extending battery life and reducing grid voltage fluctuations *** proposed strategy is a guide for stabilizing the grid connection of wind and solar power generation,capability allocation,and energy management of energy conservation systems.

关键词： Electric-thermal hybrid storage modal decomposition multi-objective genetic algorithm capacity optimization allocation operation strategy

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Spectroscopy of excited quarkonium states in the light-front quark model

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Chinese physics C 2025年第02期 37-50页

作者： Ritwik Acharyya Satyajit Puhan Harleen Dahiya Narinder Kumar Computational High energy physics Lab Department of PhysicsDr.B R Ambedkar National Institute of Technology Jalandhar Computational Theoretical High energy physics Lab Department of PhysicsDoaba College

We investigated the ground state(1S), radially excited states(2S) and(3S), and orbitally excited state(1P) for the heavy charmonia(c■) and bottomonia(b■) mesons in the light-front quark model(LFQM). The lightfront wave functions have been successful in explaining various physical properties of meson states in the past, especially for the 1S and 2S states. However, the radially excited state 3S and orbitally excited state 1P have rarely been investigated. In this study, we considered these two excited states and investigated the electromagnetic form factors(EMFFs), charge radii, decay constants, parton distribution functions(PDFs), and the distribution amplitudes(DAs)for the quarkonia system. For the sake of completeness, we also studied the ground and the first excited states of quarkonia mesons. We also illustrated the 3D wave functions for the radially excited states to study their nodal structures.

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Octupole correlations in stable nucleus ^(153)Eu within reflection-asymmetric particle rotor model

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Chinese physics C 2025年第1期49卷 216-222页

作者： Yuanyuan Wang Shuangquan Zhang Mathematics and physics department North China Electric Power UniversityBeijing 102206China Hebei Key Laboratory of physics and energy Technology North China Electric Power UniversityBaoding 071000China State Key Laboratory of Nuclear physics and Technology School of PhysicsPeking UniversityBeijing 100871China

The observed low-lying K=5/2^(±) positive-and negative-parity bands in the stable nucleus ^(153)Eu are investigated using the reflection-asymmetric triaxial particle rotor *** experimental energy spectra,energy staggering parameters,and intraband E2 and M1 transition probabilities are well *** calculated interband B(E1)values are found to depend sensitively on the octupole deformation parameter β_(30),although the energy spectra and intraband E2 and M1 transitions can be reproduced without the octupole degree of *** observed enhanced E1 transition probabilities can be reproduced with β_(30)=*** detailed analysis of the intrinsic wave functions shows these nearly degenerate positive-and negative-parity bands are built on two individual proton configurations,i.e.,dominated by πg_(7/2)[Ω=5/2]and πh_(11/2)[Ω=5/2],respectively,which differs from the parity doublet bands built on a single parity-mixed configuration.

关键词： octupole correlations parity doublet bands electromagnetic transitions reflection-asymmetric triaxial particle rotor model

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Multi-instrumental observations of nighttime X-pattern of equatorial ionization anomaly during magnetically quiet time: case study

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Earth and Planetary physics 2025年第02期9卷 410-423页

作者： XinYi Rang Chao Xiong YuHao Zheng Jing Liu Yu Jiao ShunZu Gao YuYang Huang Xin Wan Fan Yin department of Space physics Electronic Information School Wuhan University School of Space Science and physics Shandong Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment Institute of Space Sciences Shandong University Planetary environmental and Astrobiological Research Laboratory (PEARL) School of Atmospheric Sciences Sun Yatsen University

In this study, we provide a detailed case study of the X-pattern of equatorial ionization anomaly(EIA) observed on the night of September 12, 2021 by the Global-scale Observations of the Limb and Disk(GOLD) mission. Unlike most previous studies about the X-pattern observed under the severely disturbed background ionosphere, this event is observed under geomagnetically quiet and low solar activity conditions. GOLD's continuous observations reveal that the X-pattern intensity evolves with local time, while its center's longitude remains constant. The total electron content(TEC) data derived from the ground-based Global Navigation Satellite System(GNSS) network aligns well with GOLD observations in capturing the formation of the X-pattern, extending coverage to areas beyond GOLD's observational reach. Additionally, the ESA's Swarm mission show that both sides of the X-pattern can coincide with the occurrence of small-scale equatorial plasma bubbles(EPBs). To further analyze the possible drivers of the X-pattern, observations from the Ionospheric Connection Explorer(ICON) satellite were used. It shows that the latitudinal expansion(or width) between the EIA crests in two hemispheres is proportional(or inversely proportional) to the upward(or downward) plasma drift velocity, which suggests that the zonal electric field should have a notable influence on the formation of EIA X-pattern. Further simulations using the SAMI2 model support this mechanism, as the X-pattern of EIA is successfully reproduced by setting the vertical plasma drift to different values at different longitudes.

关键词： nighttime ionosphere equatorial ionization anomaly X-pattern GOLD mission plasma irregularities

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Unveiling the photocatalytic marvels:Recent advances in solar heterojunctions for environmental remediation and energy harvesting

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Journal of environmental Sciences 2025年第2期148卷 283-297页

作者： Najmeh Askari Mansoureh Jamalzadeh Aghil Askari Naiyun Liu Bijan Samali Mika Sillanpaa Leigh Sheppard Haitao Li Raf Dewil department of Chemical Engineering Process and Environmental Technology LabKU LeuvenDe Nayerlaan 5 Sint-Katelijne-Waver2860Belgium department of Plastics Engineering UMass LowellLowellMA 01851USA department of Mechanical Engineering UMass LowellLowellMA 01851USA Institute for energy Research Jiangsu UniversityZhenjiang 212013China Centre for Infrastructure Engineering Western Sydney UniversityPenrith NSW2751Australia department of Biological and Chemical Engineering Aarhus UniversityGustav Wieds Vej 108000 AarhusDenmark solar energy Technologies Research Group Western Sydney UniversityPenrith NSW2751Australia department of Engineering Science University of OxfordParks RoadOxfordOX13PJUnited Kingdom

In the quest for effective solutions to address *** meet the escalating energy demands,heterojunction photocatalysts have emerged as a captivating and versatile *** photocatalysts have garnered significant interest due to their wideranging applications,including wastewater treatment,air purification,CO_(2) capture,and hydrogen generation via water *** technique harnesses the power of semiconductors,which are activated under light illumination,providing the necessary energy for catalytic *** visible light constituting a substantial portion(46%)of the solar spectrum,the development of visible-light-driven semiconductors has become *** photocatalysts offer a promising strategy to overcome the limitations associated with activating semiconductors under visible *** this comprehensive review,we present the recent advancements in the field of photocatalytic degradation of contaminants across diverse media,as well as the remarkable progress made in renewable energy ***,we delve into the crucial role played by various operating parameters in influencing the photocatalytic performance of heterojunction ***,we address emerging challenges and propose novel perspectives to provide valuable insights for future advancements in this dynamic research *** unraveling the potential of heterojunction photocatalysts,this reviewcontributes to the broader understanding of their applications and paves the way for exciting avenues of exploration and innovation.

关键词： Heterojunction photocatalysts solar photocatalysis environmental depollution energy conversion Visible-light-driven semiconductors

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Construction of 3D porous Cu_(1.81)S/nitrogen-doped carbon frameworks for ultrafast and long-cycle life sodium-ion storage

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 191-200页

作者： Chen Chen Hongyu Xue Qilin Hu Mengfan Wang Pan Shang Ziyan Liu Tao Peng Deyang Zhang Yongsong Luo Key Laboratory of Microelectronics and energy of Henan Province Henan Joint International Research Laboratory of New Energy Storage TechnologyCollege of Physics and Electronic EngineeringXinyang Normal UniversityXinyang 464000China School of physics and Electronic Engineering Nanyang Normal UniversityNanyang 473061China

Transition metal sulfides have great potential as anode mterials for sodium-ion batteries(SIBs)due to their high theoretical specific ***,the inferior intrinsic conductivity and large volume variation during sodiation-desodiation processes seriously affect its high-rate and long-cyde performance,unbeneficial for the application as fast-charging and long-cycling SIBs ***,the three-dimensional porous Cu_(1.81)S/nitrogen-doped carbon frameworks(Cu_(1.81)S/NC)are synthesized by the simple and facile sol-gel and annealing processes,which can accommodate the volumetric expansion of Cu_(1.81)S nanoparticles and accelerate the transmission of ions and electrons during Na^(+)insertion/extraction processes,exhibiting the excellent rate capability(250.6 mA·g^(-1)at 20.0 A·g^(-1))and outstanding cycling stability(70% capacity retention for 6000 cycles at 10.0 A·g^(-1))for ***,the Na-ion full cells coupled with Na_(3)V_(2)(PO_(4))_(3)/C cathode also demonstrate the satisfactory reversible specific capacity of 330.5 mAh·g^(-1)at 5.0 A·g^(-1)and long-cycle performance with the 86.9% capacity retention at 2.0 A·g^(-1)after 750 *** work proposes a promising way for the conversionbased metal sulfides for the applications as fast-charging sodium-ion battery anode.

关键词： copper sulfide nanoparticles porous carbon framework fast charging long-cycle performance sodium-ion full batteries

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Annual Optimal Performance Analysis of Micro Heat Pipe PV/T under Different Angles in Northwest China

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Journal of Thermal Science 2025年第02期 400-412页

作者： LIU Xiaomin WU Qingbai LI Jinping Vojislav NOVAKOVIC School of energy and Power Engineering Lanzhou University of Technology Collaborative Innovation Center for Supporting Technology of Northwest Low-Carbon Towns Gansu Key Laboratory of Complementary energy System of Biomass and solar energy Gansu Natural energy Research Institute department of energy and Process Engineering Norwegian University of Science and Technology

The exploitation of photovoltaic/thermal（PV/T） systems,which facilitate concurrent conversion of solar radiation into electrical and heat energies,presents substantial potential in the solar-abundant northwestern zone of *** investigation endeavors to evaluate the efficacy of a micro heat pipe（M-HP） PV/T system via exhaustive experimental analysis conducted in *** improve the performance of M-HP-PV/T system,a comparison was made between the optimal angles for each day and the entire *** system inside greenhouse exhibited an average photovoltaic conversion efficiency（PCE） and thermal conversion efficiency（TCE） of12.32% and 42.81%.The system of external environment registered average PCE and TCE values of 12.99% and21.08%.To further understand the system's operational results,a mathematical model was constructed through the integration of experimental data,exhibiting good agreement between the simulated outcomes and empirical *** average solar irradiance of daily optimum angle was 728.3 W/m2;the annual optimum angle was 29° with an average solar irradiance of 705.6 W/*** average annual total powers at the optimal angle outside the greenhouse and inside the greenhouse were 448.0 W and 398.7 *** average annual total efficiencies at the optimal angle outside the greenhouse and inside the greenhouse were 40.8% and 56.9%.The total power in the greenhouse was lower by 49.3 W,while total efficiency in the greenhouse was higher by 16.1%.

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The dynamic effects of solar eclipses of October 25,2022,and October 14,2023,on GPS-derived total electron content

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Geodesy and Geodynamics 2025年第1期16卷 75-86页

作者： Vishal Chauhan Vishakha Rakesh Singh Shishupal Singh Vikram Singh Om Prakash Singh department of physics Graphic Era Hill University department of Petroleum Engineering Graphic Era (Deemed to be University) department of physics St.John's College department of Applied Sciences & Humanities Institute of Engineering & Technology

This study analyzes total electron content(TEC) variations during two solar eclipse events that occurred on October 25, 2022, and October 14, 2023. The solar eclipse of October 25, 2022, was a partial solar eclipse, while the eclipse of October 14, 2023, was an annular solar eclipse. For this study, the data of eight International GNSS Service(IGS) stations from different eclipse coverage zones are used to analyze TEC variations. It is found that the stations located in the maximum eclipse cover zone exhibited notable decreases in TEC values. The minimum variation of about 11.76% in TEC values is observed at the station situating in about 20 percent eclipse cover zone, while it varies from 22% to 38% at the stations falling in about 60 percent eclipse cover zone. The highest variation in TEC values of about 44% is found at the stations in about 80 percent eclipse cover zone. The time of occurrence of maximum depletion in TEC values at each station is in line with their longitudinal sequence. Atmospheric gravity waves(AGWs) are also observed by performing wavelet analysis on TEC data. The global TEC maps visualize and confirm observed TEC variations, providing spatial and temporal insights into the ionospheric response. This analysis highlights the influence of station location and eclipse coverage on the magnitude and spatial distribution of TEC variations.

关键词： solar eclipse Ionosphere GPS TEC AGW

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Primordial black holes and scalar induced density perturbations: the effects of probability density functions

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Chinese physics C 2025年第02期 206-212页

作者：周敬之况宇庭常哲张旭坤朱庆华 Center for Joint Quantum Studies and department of physics School of ScienceTianjin University Institute of High energy physics Chinese Academy of Sciences University of Chinese Academy of Sciences College of physics and Information Engineering Shanxi Normal University department of physics and Chongqing Key Laboratory for Strongly Coupled physics Chongqing University

We investigate the second order energy density perturbation δ（2）induced by small-scale Gaussian and local-type non-Gaussian primordial curvature *** relative abundance of primordial black holes（PBHs） is calculated in terms of the probability density functions（PDFs） of the total energy density perturbation δr=δ（1）+1/2δ（2）.The effects of the second order density perturbation greatly reduce the upper bounds of small-scale power spectra of primordial curvature perturbations by one to two orders of *** a log-normal primordial power spectrum,its amplitude Aζis constrained to be approximately Aζ～3×10-3,and for the local-type non-Gaussianity with fNL=10,the upper bound of Aζis approximately 2.5×10-4.

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