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Interface optimization and defects suppression via Na F introduction enable efficient flexible Sb_(2)Se_(3) thin-film solar cells

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Journal of Energy Chemistry 2024年第3期90卷 165-175,I0006页

作者： Mingdong Chen Muhammad Ishaq Donglou ren Hongli Ma Zhenghua Su ping Fan David Le Coq Xianghua zhang Guangxing liang Shuo Chen Shenzhen key laboratory of Advanced Thin Films and Applications Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060GuangdongChina state key laboratory of Featured Metal materials and Life-cycle Safety for Composite Structures MOE Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning 530004GuangxiChina CNrS ISCR(Institut des Sciences Chimiques de Rennes)UMR 6226Universitéde RennesRennes F-35000France

Sb_(2)Se_(3) with unique one-dimensional(1D) crystal structure exhibits exceptional deformation tolerance,demonstrating great application potential in flexible ***,the power conversion efficiency(pCE) of flexible Sb_(2)Se_(3) photovoltaic devices is temporarily limited by the complicated intrinsic defects and the undesirable contact ***,a high-quality Sb_(2)Se_(3) absorber layer with large crystal grains and benign [hkl] growth orientation can be first prepared on a Mo foil *** NaF intermediate layer is introduced between Mo and Sb_(2)Se_(3),which can further optimize the growth of Sb_(2)Se_(3)thin ***,positive Na ion diffusion enables it to dramatically lower barrier height at the back contact interface and passivate harmful defects at both bulk and *** a result,the champion substrate structured Mo-foil/Mo/NaF/Sb_(2)Se_(3)/CdS/ITO/Ag flexible thin-film solar cell delivers an obviously higher efficiency of 8.03% and a record open-circuit voltage(V_(OC)) of 0.492 *** flexible Sb_(2)Se_(3) device also exhibits excellent stability and flexibility to stand large bending radius and multiple bending times,as well as superior weak light photo-response with derived efficiency of 12.60%.This work presents an effective strategy to enhance the flexible Sb_(2)Se_(3) device performance and expand its potential photovoltaic applications.

关键词： Sb_(2)Se_(3) Flexible solar cells NaF intermediate layer Interface optimization Defects suppression

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red Long Lasting phosphorescence of Mn^(2+) Doped Zinc phosphate Glasses

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Journal of Wuhan university of Technology(materials Science) 2007年第B12期22卷 799-802页

作者：廉志红苏锵 College of materials Science and Engineering Hebei Polytechnic University key laboratory of rare Earth Chemistry and physics Changehun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China key laboratory of rare Earth Chemistry and physics Changehun Institute of Applied ChemistryChinese Academy of Sciences state key laboratory of Optoelectronic materials and Technology School of Chemistry and Chemical EngineeringSun Yat-Sen UniversityGuangzhou 510275China

Mn^2＋ doped ZnO-p2O5 glasses emit red fluorescence, which shows that Mn^2＋ ion doped in zinc phosphate glass is octahedrally coordinated. Moreover, glass samples exhibit bright red long lasting phosphorescence （LLp） when the mole percent of ZnO are more than 60%. After turnoff the irradiation source of UV lamp peaking at 254 nm, the red phosphorescence can be observed for about 6 h in the limit of light perception for naked eyes （0.32 mcd/m^2）. photoluminescence （pL） spectra, LLp emission spectra and decay curves were detected. Increasing MnO or ZnO content, the phosphorescence intensity can be improved distinctly and the emission wavelength can be also adjusted from 595 nm to 628 nm. According to the structural characteristic of zinc phosphates glasses, we suggest that non-bridge oxygen （NBO） is probably related with the arising of LLE Meantime, the variation of crystal field intensity induced that the LLp emission wavelength red shifts.

关键词： red long lasting phosphorescence zinc phosphate glass Mn^2+

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低对称性非线性光学晶体BIBO的倍频性质

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物理学报 2003年第9期52卷 2176-2184页

作者：王正平滕冰杜晨林许心光傅琨许贵宝王继扬邵宗书山东大学晶体材料国家重点实验室济南250100

测量了BIBO晶体的主轴折射率 .对BIBO晶体在整个空间内的倍频性质进行了系统讨论 .当基频光为Nd :YAG激光时 (λ =10 6 4nm) ,发现最大的有效非线性光学系数位于 ( 16 8.9°,90°)的Ⅰ类相位匹配方向上 .测量了BIBO晶体的容限角、容限... 详细信息

测量了BIBO晶体的主轴折射率 .对BIBO晶体在整个空间内的倍频性质进行了系统讨论 .当基频光为Nd :YAG激光时 (λ =10 6 4nm) ,发现最大的有效非线性光学系数位于 ( 16 8.9°,90°)的Ⅰ类相位匹配方向上 .测量了BIBO晶体的容限角、容限温度、光损伤阈值 ,以及 10 6 4nm的腔外、腔内倍频性质 .实验中 ,最大腔外倍频转换效率达到 6 8% ,腔内倍频输出达到 1.0 6W .

关键词：低对称性 BIB0晶体倍频非线性光学晶体倍频性质主轴折射率激光器

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Simultaneously optimizing exciton diffusion length and nonradiative energy loss in organic solar cells via ternary strategy

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Science china Chemistry 2024年第9期67卷 3004-3011页

作者： Huanxiang jiang Hao Lu Zezhou liang Yonghai Li Guangliu ran Chenyu Han Yuqiang Liu Hongxiang Li Xichang Bao Zhishan Bo College of Textiles and Clothing State Key Laboratory of Bio-fibers and Eco-textilesQingdao UniversityQingdao 266071China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China key laboratory for physical Electronics and Devices of the Ministry of Education&Shaanxi Key Lab of Photonic Technique for InformationSchool of Electronics Science&EngineeringFaculty of Electronic and Information EngineeringXi’an Jiaotong UniversityXi’an 710049China Department of physics and Applied Optics Beijing Area Major laboratory Center for Advanced Quantum StudiesBeijing Normal UniversityBeijing 100875China College of polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065China laboratory of Solar Energy Shandong Energy InstituteQingdao 266101China

Significant nonradiative energy loss and short exciton diffusion length in organic solar cells(OSCs)are two major obstacles to achieving state-of-the-art *** is crucial to conduct a study on the intensive mechanism and improvement strategies for future breakthroughs in the efficiency of *** this work,nonradiative energy loss and exciton diffusion length are optimized simultaneously by incorporating a guest acceptor(LA15)to construct ternary OSC(D18:L8-BO:LA15).Firstly,LA15 exhibits excellent compatibility with the host acceptor L8-BO,and effectively improves the fluorescence quantum efficiency(FLQY),resulting in suppressed non-radiative energy ***,LA15 effectively prolongs the fluorescent lifetime of the acceptor phase from 0.85 to 1.12 ns,leading to larger exciton diffusion length,which is beneficial for reducing geminate ***,the addition of LA15 optimizes the crystallinity of the active layer with amplified charge transport *** a result,the optimized D18:L8-BO:LA15 device achieves ultralow nonradiative energy loss of 0.18 e V and improved fill factor(FF)with high efficiency up to 19.13%.These results highlight the crucial roles of regulating FLQYand exciton lifetime in achieving highefficiency OSCs.

关键词： organic solar cells nonradiative energy loss exciton lifetime exciton diffusion length

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一种测量电光旋光晶体La_3 Ga_5 SiO_(14)电光系数γ_(11)的新方法

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天津大学学报 2006年第B6期39卷 157-159页

作者：张少军田召兵尹鑫桑梅李世忱天津大学精密仪器与光电子工程学院天津300072 山东大学晶体材料国家重点实验室济南250100

从理论上对激光处于电场中的旋光晶体传播方程进行了研究,应用琼斯距阵理论分析了入射到晶体表面和透过晶体的光的偏振态,推导出了透过晶体出射的光为线偏振的条件,利用旋光晶体电光系数γ_(11)与施加电场的电压V和晶体角度α的关系,通... 详细信息

从理论上对激光处于电场中的旋光晶体传播方程进行了研究,应用琼斯距阵理论分析了入射到晶体表面和透过晶体的光的偏振态,推导出了透过晶体出射的光为线偏振的条件,利用旋光晶体电光系数γ_(11)与施加电场的电压V和晶体角度α的关系,通过实验,测量了La_3 Ga_5 SiO_(14)晶体电光系数γ_(11)为2．2×10^(-12)m/V．

关键词：激光物理旋光晶体硅酸镓镧晶体电光系数

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Orientation controlled photogenerated carriers on selfsupporting CdS/Ni_(3)S_(2) paper toward photocatalytic hydrogen evolution and biomass upgrading

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rare Metals 2024年第5期43卷 2015-2025页

作者： Xiao-Yan Liu Qing Cao Gui-Xiang Li Hui Liu Li-Li Zeng Li-Li Zhao Bin Chang Xi-Wen Wang Hong Liu Wei-jia Zhou Institute for Advanced Interdisciplinary research School of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022China Institute of Chemical Sciences and Engineering Ecole Polytechnique Federale de Lausanne1015LausanneSwitzerland KAUST Catalysis Center King Abdullah University of Science and TechnologyThuwal 23955-6900Kingdom of Saudi Arabia school of Environment and Energy South China University of TechnologyGuangzhou Higher Education Mega CenterGuangzhou 510006China state key laboratory of crystal materials Shandong UniversityJinan250100China school of Mechanical Engineering Xi'an Jiaotong UniversityXi'an 710054China

The appropriate regulation of band structure is an effective strategy in constructing efficient photocatalytic *** photocatalytic system mainly employs powder photocatalysts,which makes their recovery reliant on expensive separation processes and severely limits their industrial ***,we constructed a novel CdS/Ni_(3)S_(2)heterostructure using free-standing and flexible nickel fiber paper as the *** regulated energy band structure achieves effective electron–hole *** as-synthesized flexible photocatalyst exhibits considerable photocatalytic activity toward the H_(2)evolution reaction under visible-light irradiation,with an H_(2)production rate of5.63μmol·cm^(-2)·h^(-1)(14.1 mmol·g^(-1)cat·h^(-1)according to the catalyst loading content).Additionally,the otherwisewasted excited holes simultaneously drive organic transformations to yield value-added organic products,thus markedly improving the photocatalytic H_(2)evolution *** a photocatalytic system is scaled up further,where a self-supported 20 cm×25 cm sample achieves a champion H_(2)production rate of 60-80μmol·h^(-1)under practical sun *** newly developed self-supported photocatalyst produces opportunities for practical solar H2production with biomass upgrading.

关键词： Self-supporting photocatalyst CdS/Ni_(3)S_(2) heterojunction Hydrogen evolution Biomass upgrading Large-scaleapplication

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Formation of ZnO Thin Film on n-Inp(100) by Electrochemical Deposition

Formation of ZnO Thin Film on n-InP(100) by Electrochemical ...

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Fifth International Conference on Surface Engineering

作者： Zhankun Weng1,2,Aimin Liu1,,Yanhong Liu1,Zengquan Hu1,Weifeng Liu1,Feng Xu1,Huijing Luo1,Guotong Du1 1 state key laboratory of materials Modification by Laser,Ion and Electron Beams & school of physics and Optoelectronic Technology,Dalian university of Technology,Dalian,116024,p.r.china 2 College of Life Science,Changchun university of Science and Technology,Changchun,130022,p.r.china

In the past several years,ZnO thin film fabricated by electrochemical deposition has attracted much attention for many researchers because electrochemical techniques have their own advantages,such as their low processing temperature,low damage,low-cost,and *** abstract presents a work for growth of ZnO thin film in 0.1 M Zn(NO3)2 + 0.1Wt% SDS electrolyte,where ZnO thin film was formed on single-crystal n-Inp(100)(～2.4×1016 cm-3) by electrochemical *** deposited was studied by linear sweep voltammetry in 0.1 M Zn(NO3)2 + 0.1Wt% SDS electrolyte/Inp system in which reduction potential is about-1.2 V versus a reference saturated calomel electrode(SCE) and sweep rate is 5 *** increasing of the temperature of the electrolyte from 20 to 60 °C the reduction currents were clearly increased and the reduction potential was changed from-1.1877 to-1.2286 V as shown in *** ZnO thin film was formed in 0.1 M Zn(NO3)2 + 0.1Wt% SDS solutions at constant-0.95,-0.9,and-0.85 V for one hour,*** electron microscopy showed that the thin film becomes smooth and compact with decreasing of applied potential as shown in *** porous,large rimose,and smooth and compact ZnO thin films were obtained at-0.95,-0.90,and-0.85 V,*** results show that if the potential is low enough,the perfect ZnO thin film may be obtained by electrochemical deposition on n-Inp.X-ray diffraction(XrD) reveals that ZnO thin film is obtained with(110) facet at-0.9 and-0.85 V and with(100) facet at-0.95 V,which indicate that the film was grown along with direction at low applied *** addition,as can be seen the photoluminescence spectra(in Fig.3),it shows two *** near band edge emission at～377nm is relatively strong and is accompanied by a rather weak deep level emission band at～525 *** near band edge emission is generally ascribed to the exciton emission2,and the deep level emission is suggested to be due to oxygen vac

关键词： ZnO thin film Electrochemical deposition XrD photoluminescence

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LD抽运的Nd:YAG陶瓷/KTp绿光激光器

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物理学报 2009年第11期58卷 7686-7689页

作者：兰瑞君刘宏王正平任诠张怀金王继扬于浩海吕耀辉桑元华许心光山东大学晶体材料国家重点实验室济南250100 山东大学信息科学与工程学院济南250100

报道了一种LD端面抽运Nd:YAG陶瓷、KTp腔内倍频的全固态连续波绿光激光器.当抽运功率为21.6W时,1064nm基频输出达到11.3W,光—光转换效率为52.3%.采用Ⅱ类切割的KTp晶体作为腔内倍频介质,在直腔结构下获得了最大功率为1.86W的532nm绿光... 详细信息

报道了一种LD端面抽运Nd:YAG陶瓷、KTp腔内倍频的全固态连续波绿光激光器.当抽运功率为21.6W时,1064nm基频输出达到11.3W,光—光转换效率为52.3%.采用Ⅱ类切割的KTp晶体作为腔内倍频介质,在直腔结构下获得了最大功率为1.86W的532nm绿光输出,光—光转换效率为7%.输出光斑具有高斯型强度分布,1W输出时的M2因子约为1.7.

关键词：全固态绿光激光器 Nd:YAG陶瓷 KTp倍频直腔

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Critical state-induced emergence of superior magnetic performances in an iron-based amorphous soft magnetic composite

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materials Futures 2024年第2期3卷 149-160页

作者： Liliang Shao rongsheng Bai Yanxue Wu Jing Zhou Xing Tong Hailong peng Tao liang Zongzhen Li Qiaoshi Zeng Bo zhang Haibo Ke Weihua Wang Songshan Lake materials laboratory Dongguan 523808People’s Republic of China Institute of physics Chinese Academy of SciencesBeijing 100190People’s Republic of China school of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBeijing 100096People’s Republic of China school of materials Science and Engineering Central South UniversityChangsha 410083People’s Republic of China Center for High pressure Science and Technology Advanced research Shanghai 201203People’s Republic of China jiangsu JITrI Advanced Energy materials research Institute Co. LtdChangzhou 213000People’s Republic of China

Soft magnetic composites(SMCs)play a pivotal role in the development of high-frequency,miniaturization and complex forming of modern ***,they usually suffer from a trade-off between high magnetization and good magnetic softness(high permeability and low core loss).In this work,utilizing the order modulation strategy,a critical state in a FeSiBCCr amorphous soft magnetic composite(ASMC),consisting of massive crystal-like orders(CLOs,∼1 nm in size)with the feature ofα-Fe,is *** critical-state structure endows the amorphous powder with the enhanced ferromagnetic exchange interactions and the optimized magnetic domains with uniform orientation and fewer micro-vortex *** comprehensive soft magnetic properties at high frequency emerge in the ASMC,such as a high saturation magnetization(Ms)of 170 emu g^(-1)and effective permeability(µ_(e))of 65 combined with a core loss(pcv)as low as 70 mW cm^(-3)(0.01 T,1 MHz).This study provides a new strategy for the development of high-frequency ASMCs,possessing suitable comprehensive soft magnetic performance to match the requirements of the modern magnetic devices used in the third-generation semiconductors and new energy fields.

关键词： amorphous soft magnetic composites critical state soft magnetic property rotating magnetic field annealing magnetic domain

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多孔结构TiO_2纳米膜的光催化活性及其动力学研究

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济南大学学报（自然科学版） 2003年第3期17卷 234-237页

作者：卢萍夏光明姚明明孙国新蒋宛莉济南大学化学化工学院山东济南250022 山东大学晶体材料国家重点实验室山东济南250100

考察了多孔结构TiO2 膜的光催化活性 ,并通过X射线衍射 (XrD)、电镜分析 (SEM)、光电能谱分析 (XpS)对催化剂表面进行了表征 ,结果表明 :TiO2 的晶型为锐钛矿型 ,粒子平均半径为 32 .94nm ;这种结构TiO2 纳米膜在对甲基橙的降解中显示... 详细信息

考察了多孔结构TiO2 膜的光催化活性 ,并通过X射线衍射 (XrD)、电镜分析 (SEM)、光电能谱分析 (XpS)对催化剂表面进行了表征 ,结果表明 :TiO2 的晶型为锐钛矿型 ,粒子平均半径为 32 .94nm ;这种结构TiO2 纳米膜在对甲基橙的降解中显示了较好的光催化活性 ( 5 0min光照后 ,最高降解率达到了 92 .1% ) ;对光催化动力学进行了初步研究 ,结果表明。

关键词：纳米多孔结构 TiO2膜光催化掺杂

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