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Platinum-group element geochemistry of Cenozoic basalts from the North China Craton: Implications for mantle heterogeneity

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Science China Earth Sciences 2015年第6期58卷 881-895页

作者： ZHANG WenHui ZHANG HongFu sun yali FAN WeiMing HAN BaoFu TANG YanJie School of Zijin Mining Fuzhou University State Key Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Sciences Guangzhou Institute of Geochemistry Chinese Academy of Sciences Department of Earth Sciences Peking University

Forty-two Cenozoic （mostly Miocene） basalt samples from Jining, Chifeng, Fansi, Xiyang, and Zuoquan areas of the North China Craton （the NCC basalts hereafter） were analyzed for platinum-group elements （PGE, including Os, It, Ru, Rh, Pt, and Pd）. Most of them are alkaline basalts and tholeiites and all of them display little crustal contamination. The total PGE contents of the NCC basalts vary from 0.1 to 0.9 ppb, much lower than those of the primitive mantle values of 23.5 ppb. Primitive man- tie-normalized PGE patterns of these basalts define positive slopes and Pd/Ir ratios vary from 1.2 to 25. In terms of both PGE contents and Pd/Ir ratios, they are quite similar to the mid-ocean ridge basalts. There are no obvious negative correlations be- tween PGE vs. MgO, Ni, and Cu in the NCC basalts, indicating that fractional crystallization of olivine, pyroxene, and/or sul- fides during magmatic process cannot be the controlling factor for the observed PGE variation. The observed Pd/Ir variations of the NCC basalts require involvement of non-chondritic heterogeneous mantle sources. Based on Sr-Nd-Pb-Hf isotopic sys- tematics and incompatible-element signatures, a mixing of partial melts from both asthenospheric peridotites and enclosed mantle eclogites at the top of asthenosphere was proposed for the origin of these NCC basalts. The lenses of eclogites are de- rived from upwelling of recycled continental crust during the westward subduction of the Pacific plate from the -600 km dis- continuity zone. The PGE geochemistry of these basalts provides independent evidence to support this conclusion and the ob- served Pd/Ir variations may reflect variations in proportions of tapped peridotitic and eclogitic melts.

关键词： Continental basalts platinum group elements geochemistry North China Craton

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Na-doping-induced modification of the Cu_(2)ZnSn(S,Se)_(4)/CdS heterojunction towards efficient solar cells

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Journal of Energy Chemistry 2021年第6期30卷 618-626,I0015页

作者： yali sun Hongling Guo Pengfei Qiu Shengli Zhang Siyu Wang Li Wu Jianping Ao Yi Zhang Institute of Photoelectronic Thin Film Devices and Technology and Tianjin Key Laboratory of Thin Film Devices and Technology Nankai UniversityTianjin 300350China College of Physics Science and Technology Hebei UniversityBaoding 071002HebeiChina The MOE Key Laboratory of Weak-Light Nonlinear Photonics School of PhysicsNankai UniversityTianjin 300071China

It is very important to understand why a small amount of alkali metal doping in Cu_(2)ZnSn(S,Se)_(4)(CZTSSe)solar cells can improve the conversion *** this work,Na-doped CZTSSe is prepared by a simple solution method,and then the effects on the surface properties of the absorber layer,the buffer layer growth,and the modifications of the solar cell performance induced by the Na doping are *** surface of the absorber layer is more Cu-depletion and less roughness due to the Na *** addition,the contact angle of the surface increases because of Na *** a consequence,the thickness of the CdS buffer layer is significantly reduced and the optical losses in the CdS buffer layer are *** difference of quasi-Fermi levels(EFn-EFp) increases with a small amount of Na doping in the CZTSSe solar cell,so that open circuit voltage(VOC) increased *** work offers new insights into the effects of Na doping on CZTSSe via a solution-based approach and provides a deeper understanding of the origin of the efficiency improvement of Na-doped CZTSSe thin film solar cells.

关键词： Cu_(2)ZnSn(S,Se)_(4)solar cells Na doping Heterojunction Contact angles Simulation analysis

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Re-Os and U-Pb Geochronology of the Erlihe Pb-Zn Deposit,Qinling Orogenic Belt,Central China,and Constraints on Its Deposit Genesis

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Acta Geologica Sinica(English Edition) 2011年第3期85卷 673-682页

作者： ZHANG Fan LIU Shuwen LI Qiugen sun yali WANG Zongqi YAN Quanren YAN Zhen Key Laboratory of Orogenic Belt and Crustal Evolution Ministry of Education Peking University Beo＇ing 100871 China Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Institute of Mineral Resources Chinese Academy of Geological Sciences Beo＇ing 10003 7 China Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China

The Erlihe Pb-Zn deposit is an important mine of the Pb-Zn metallogenic zone in the South Qinling *** has been considered a sedimentary exhalative deposit in previous investigations because the ore body occurs concordantly at the transitional location of an upright *** and Os isotopic analyses for paragenetic pyrites with sphalerite and galena from the ore body have been used to determine the timing of mineralization and to trace the source of metallogenic *** Re-Os isotopic data of four pyrite samples construct an isochron,yielding a weighted average age of 226±17 Ma（mean square weighted deviation=1.7）,which is considered the main mineralization age.A dioritic porphyrite vein sample,showing weaker mineralization,was also dated using the SHRIMP zircon UPb isotopic method to constrain the youngest metallogenic age of the ore deposit,because it distributes along a group of tensional joints cutting not only the upright fold in the deposit field,but also the main ore *** dioritic porphyrite sample yields a weighted mean ^（206）Pb/^（238）U age of 221±3 Ma,which is slightly younger than the Re-Os isotopic isochron age of the pyrites,considered as the upper age limit of the mineralization,namely the ending age of the *** Os isotopic compositions of sulfide minerals distribute within a range between Os isotopic compositions of the crust and the mantle, indicating that the ore deposit can be derived from magma-related fluid,and the metallogenic materials are most likely derived from the mixing source of the crust and the *** Erlihe Pb-Zn deposit and associated dioritic porphyrite vein,important records of Qinling tectonic-magmatism-mineralization activities,were formed during the Triassic collisional orogeny processes.

关键词： Erlihe Pb-Zn deposit Re-Os isotopic system dioritic porphyrite vein SHRIMP zircon UPb age Qinling Orogen

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Indosinian isotope ages of plutons and deposits in southwestern Miaoershan-Yuechengling,northeastern Guangxi and implications on Indosinian mineralization in South China

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Chinese Science Bulletin 2012年第9期57卷 1024-1035页

作者： WU Jing LIANG HuaYing HUANG WenTing WANG ChunLong sun WeiDong sun yali LI Jing MO JiHai WANG XiuZhang CAS Key Laboratory of Mineralogy and Metallogeny Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China State Key Laboratory of Isotope Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Zijin Mining Group Company Limited Xiamen 364200 China Guangdong Nuclear lndustry Bureau Guangzhou 510800 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

The Miaoershan-Yuechengling complex pluton is the largest granitoid complex in the western Nanling metallogenic belt with a surface exposure of >3000 *** complex pluton is composed of an early stage granitoid batholith and late stage small *** early stage batholith contains mainly medium-grained porphyritic mica granite and porphyritic monzonite granite,whereas the late stage intrusions are composed of muscovite granite porphyry and muscovite monzonitic *** are many W-Sn-Mo-Pb-Zn-Cu ores in the contact zone between the batholith and strata,forming an ore-rich belt around the *** on zircon LA-ICP-MS U-Pb ages,the southwestern part of the early stage batholith formed at 228.7 ± 4.1 Ma(MSWD = 2.49),with slightly earlier magmatic activity at 243.0 ± 5.8 Ma(MSWD = 2.62).The Yuntoujie muscovite granite was associated with W-Mo mineralization and has a zircon LA-ICP-MS U-Pb age of 216.8 ± 4.9 Ma(MSWD = 1.44).The Re-Os isochron age of molybdenite from the Yuntoujie W-Mo ore was 216.8 ± 7.5 Ma(MSWD = 11.3).Our new isotope data suggest that the late stage intrusive stocks from the southwestern Miaoershan-Yuechengling batholith were closely associated with W-Mo mineralization from the Indosinian *** new results together with previous isotope data,suggest that South China underwent not only the well-known Yanshanian mineralization event,but also a widespread Indosinian metallogenic event during the Mesozoic ***,South China has a greater potential for Indosinian mineralization than previously thought such that more attention should be given to the Indosinian ore prospecting in South China.

关键词： Re-Os同位素年龄中国南方复杂岩体印支期西南部 LA-ICP-MS 锆石U-Pb年龄矿化

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Li_(2)S doping into CZTSe drives the large improvement of V_(OC) of solar cell

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Journal of Energy Chemistry 2021年第11期30卷 637-644,I0015页

作者： Zhan Shen Siyu Wang Yue Liu yali sun Jianyu Wu Hongling Guo Kaizhi Zhang Shengli Zhang Fangfang Liu Yi Zhang Institute of Photoelectronic Thin Film Devices and Technology and Tianjin Key Laboratory of Photoelectronic Thin Film Devices and Technology and Renewable Energy Conversion and Storage CenterNankai UniversityTianjin 300350China

Alkali metal doping or sulfurization are commonly applied in Cu_(2)ZnSnSe_(4) (CZTSe) solar cell to improve the open-circuit voltage (VOC). However, alkali metal sulfide affording both alkali metal and sulfur is seldom to be studied, which restrains the development of kesterite solar cells. In this study, we evaporate Li_(2)S during selenization process and hope to provide both alkali metal and sulfur to CZTSe film. The result indicates that Li shows a gradient distribution near the surface of CZTSe film and the content of S is slight. The film quality is improved and the recombination at grain boundaries is decreased after Li_(2)S treatment. Besides, the bandgap of the absorber gets wider. Under the synergy of sulfur and lithium (mainly from lithium), the work function of the treated absorber gets higher and the conduction band offset (CBO) is in the ideal range. Combined with these contributions, the V_(OC) of the champion device treated by Li_(2)S dramatically increase by 120 mV. This study discloses that alkali metal brings the main effect on the performance of the kesterite solar cell even an alkali metal sulfide is evaporated, which deepens the understanding of sulfurization of CZTSe and also promote the progress of kesterite solar cells.

关键词： Li_(2)S treatment Surface passivation V_(OC)enhancement Band alignment

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All-optical generation of static electric field in a single metal-semiconductor nanoantenna

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Light(Science & Applications) 2023年第11期12卷 2350-2362页

作者： yali sun Artem Larin Alexey Mozharov Eduard Ageev Olesia Pashina Filipp Komissarenko Ivan Mukhin Mihail Petrov Sergey Makarov Pavel Belov Dmitry Zuev School of Physics and Engineering ITMO UniversityLomonosova 9Saint Petersburg 191002Russia Center for Nanotechnologies Alferov UniversityKhlopina 8/3Saint Petersburg 194021Russia Higher School of Engineering Physics Peter the Great Saint Petersburg Polytechnic UniversityPolitekhnicheskaya 29Saint Petersburg 195251Russia

Electric field is a powerful instrument in nanoscale engineering,providing wide functionalities for control in various optical and solid-state *** development of a single optically resonant nanostructure operating with a charge-induced electrical field is challenging,but it could be extremely useful for novel nanophotonic ***,we show a resonant metal-semiconductor nanostructure with a static electric field created at the interface between its components by charge carriers generated via femtosecond laser *** study this field experimentally,probing it by second-harmonic generation signal,which,in our system,is time-dependent and has a non-quadratic signal/excitation power *** developed numerical models reveal the influence of the optically induced static electric field on the second harmonic generation *** also show how metal work function and silicon surface defect density for different charge carrier concentrations affect the formation of this *** estimate the value of optically-generated static electric field in this nanoantenna to achieve≈10^(8)V/*** findings pave the way for the creation of nanoantenna-based optical memory,programmable logic and neuromorphic devices.

关键词： antenna optical field

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HAT therapy for sepsis:A review of the therapeutic rationale and current clinical evaluation status

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Journal of Intensive Medicine 2023年第4期3卷 320-325页

作者： yali sun Yongfang Yang Zhuoyi Ye Tongwen sun Department of General ICU The First Affiliated Hospital of Zhengzhou UniversityHenan Key Laboratory of Critical Care MedicineZhengzhou Key Laboratory of SepsisZhengzhou 450052HenanChina Henan Engineering Research Center for Critical Care Medicine Department of General ICUThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052HenanChina

Vitamin C-based cluster therapy,which involves the combined application of hydrocortisone,vitamin C,and thiamine(HAT),is a recently proposed new treatment option for sepsis on top of conventional *** therapy has a strong theoretical basis,but its clinical efficacy remains *** review summarizes the rationale for HAT therapy for sepsis and describes the evaluation of its efficacy in clinical observational studies and randomized controlled trials,with the aim of providing a reference for the future clinical practice application of HAT therapy in sepsis.

关键词： Sepsis HAT therapy Hydrocortisone Vitamin C Thiamine Metabolic resuscitation

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等离子体质谱法测定珊瑚锶和钙

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分析化学 2000年第8期28卷 941-944页

作者：孙亚莉孙敏香港大学地球科学系!香港国土资源部岩矿测试技术研究所北京 100037

研究了珊瑚中Ｓｒ（～８０００ μｇ有／ｇ）、Ｃａ（～４００ｍｇ／ｇ）在同一份溶液中的等离子体质谱的同时测定。所有样品均加入Ｓｃ和Ｙ作内标元素分别控制测定Ｃａ和Ｓｒ时的仪器波动。本方法Ｓｒ、Ｃａ测量精度（ＲＳＤ％）... 详细信息

研究了珊瑚中Ｓｒ（～８０００ μｇ有／ｇ）、Ｃａ（～４００ｍｇ／ｇ）在同一份溶液中的等离子体质谱的同时测定。所有样品均加入Ｓｃ和Ｙ作内标元素分别控制测定Ｃａ和Ｓｒ时的仪器波动。本方法Ｓｒ、Ｃａ测量精度（ＲＳＤ％）分别～０．３％、～１％。９０个珊瑚样品Ｓｒ分析结果中，仅有７个样品Ｓｒ数据与同位素稀释热电离质谱法数据相比，相对偏差较大（～１％），其它数据相互吻合。本方法适合珊瑚样中Ｓｒ的快速测定，并可以此来判断季节性温度变化。

关键词：等离子体谱仪锶钙珊瑚热电高质谱

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Overseas M＆As- the Wa Ahead

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China International Business 2013年第2期 18-20页

作者： sun JISHAN CHENG yali(Translated )

For any Chinese manufacturing enterprise thinking of ＇going global＇ and establishing a foothold in atarget market, it＇s essential to be properly prepared.

关键词：并购海外制造企业

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N-Type Surface Design for p-Type CZTSSe Thin Film to Attain High Efficiency

N-Type Surface Design for p-Type CZTSSe Thin Film to Attain ...

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第九届新型太阳能材料科学与技术学术研讨会

作者： yali sun Wei Yu Yi Zhang Nankai University Hebei University

As a low cost substitute that uses no expensive rare-earth elements for the high-efficiency Cu(In,Ga)(S,Se) solar cell, the CuZnSn(S,Se)(CZTSSe) solar cell has borrowed optimization strategies used for its predecessor to improve its device performance, including a profiled band gap and surface inversion.[1,2] Indeed, there have been few reports of constructing CZTSSe absorber layers with surface inversion to improve efficiency. Here, we demonstrate a strategy that designs the CZTSSe absorber to attain surface modification by using n-type AgZnSnS. It is discovered that Ag plays two major roles in the kesterite thin film devices: surface inversion and front gradient distribution. It has not only an excellent carrier transport effect and reduced probability of electron-hole recombination but also results in increased carrier separation by increasing the width of the depletion region, leading to much improved VOC and JSC. Finally, a champion CZTSSe solar cell renders efficiency as high as 12.55%, one of the highest for its type, with the open-circuit voltage deficit reduced to as low as 0.306 V(63.2% Shockley-Queisser limit). The band engineering for surface modification of the absorber and high efficiency achieved here shine a new light on the future of the CZTSSe solar cell.

关键词： kesterite Ag doping surface inversion gradient energy band optimization strategies

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