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Chinese Chemical Letters 2010年第7期21卷 810-812页

作者： Han bing teng College of Chemical Engineering Wuhan University of TechnologyWuhan 430070China

A novel organophosphorus compound containing the structure of bothβ-amino acid andβ-aminophosphonate is designed and *** reaction with P（OEt）_3,the N-Boc protected iodide 3 cannot provide the desired product but 2-oxazolidinone 4 because of the neighboring-group participation of the Boc *** avoid the intramolecular participation of the carbamates,the Ts protecting group is employed and the Ts-protected iodide 5 affords the target product successfully.

关键词： β-Amino acid β-Aminophosphonate Neighboring-group participation Arbuzov reaction Amino-protecting group

Realization of warm white light emitting in single phase Gd(P_(x)V_(1−x))O_(4):y at% Sm^(3+),1 at% Bi^(3+) phosphor

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Journal of Rare Earths 2022年第4期40卷 559-566,I0002页

作者： Chao Dou Yanzhen Yin Fei Zheng Zhen Wang Shijia Sun Chen Hu Yang Che bing teng Degao Zhong College of Physics University-Industry Joint Center for Ocean Observation and Broadband CommunicationQingdao UniversityQingdao 266071China National Demonstration Center for Experiment Applied Physics Education(Qingdao University) Qingdao 266071China Shandong Provincial University Key Laboratory of Optoelectrical Material Physics and Devices Qingdao 266071China

A series of single phase,warm white light emitting phosphors,Gd(P_(x)V_(1−x))O_(4):y at%Sm^(3+),with 1 at%Bi^(3+) doping concentration were synthesized by high temperature solid state method in this *** experimental results indicate broadband cyan emission of Bi^(3+)and characteristic orange-red emission of Sm^(3+)can be effectively tuned by changing the ratios of PO^(3−)_(4)/VO^(3−)_(4) in Gd(P_(x)V_(1−x))O_(4):1 at%Sm^(3+),1 at%Bi^(3+),and the energy transfer process among VO^(3−)_(4),Sm^(3+),Bi^(3+) also can be *** on this,warm white light emitting can be realized by further optimizing the doping concentration of Sm^(3+) in the *** 423 K,the PL intensity of Gd(P_(0.7)V_(0.3))O_(4):2 at%Sm^(3+),1 at%Bi^(3+) remains~84.3%of the initial value at 293 K,while the measured quantum efficiency is 67.8%.EL spectrum analysis results of the fabricated white light emitting diode(wLED)based on a 310 nm UV-chip and Gd(P_(0.7)V_(0.3))O4:2 at%Sm^(3+),1 at%Bi^(3+)phosphors imply low correlated color temperature(3132 K)and appropriate color-rending index(R_(a)=82.7).These results demonstrate that Gd(P_(0.7)V_(0.3))O4:2 at%Sm^(3+),1 at%Bi^(3+)is a good candidate for manufacturing UV-activated warm white light emitting diodes.

关键词： Warm white light emitting Single phase phosphor Color-tunability Rare earths

Optical homogeneity of ADP crystals from rapid growth

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Chinese Science Bulletin 2010年第4期55卷 378-381页

作者： ZHONG DeGao teng bing Romano A Rupp YU Tao WANG QingGuo ZHAO YanShuai HUANG WanXia College of Physics Science Qingdao University Qingdao 266071 China TEDA Applied Physics School Nankai University Tianjin 300457 China Department of Physics Fuzhou University Fuzhou 350108 China Beijing Synchrotron Radiation Laboratory Institute of High Energy Chinese Academy of Sciences Beijing 100039 China

ADP (NH4H2PO4) crystals were grown through the traditional method and rapid growth technology. The optical homogeneity of rapid grown ADP crystals was analyzed by laser interferometry and X-ray topography. Laser interferometry revealed sector boundaries at which optical homogeneity decreased dramatically. The main defects that seriously reduced the optical homogeneity of the rapid grown ADP crystal were sector boundaries, growth bands and inclusions. The concentration of Fe and Cr impurities was tested by a plasma emission spectrometer. It was found that the preferential incorporation of metallic impurities into the prismatic faces resulted in high density of growth bands and inclusions, thus reducing optical homogeneity of the prismatic sector.

关键词：光学均匀性晶体生长 ADP 等离子发射光谱仪激光干涉测量金属杂质磷酸二氢铵经济增长

Resource Sharing by the Different Clonal White Clover Plant(Trifolium repens L.)

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Journal of Northeast Agricultural University(English Edition) 1997年第2期4卷 110-115页

作者： Hu Baozhong, Liu Di, Wang Shiping, teng bing (Northeast Agricultural University, Harbin, 150030 PRC)

Resource sharing in the different parts of the clonal white clover plant (Trifolium repens L.) was investigated in this study. The results showed that the integration of water and nitrogen metabolism occured among parental, young and old branches of a plant when water passed through its stolons. Under the sufficient supply of light, water and nutrients from soil the newly developed branches showed similar capacity in taking in sufficient water and nitrogen to that of old branches. The development of the new branches did not affect the growth of the old and parental branches attached. The results also indicated that energy values in roots was significantly related with plant age, however, the energy values were various in the different parts of a plant.

关键词： resource sharing clonal plant white clover (Trifolium repens L.)

Structural design and characterization of a new chalcone molecular derivative crystal DMNC with high second-order nonlinear coefficient

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Chinese Journal of Structural Chemistry 2023年第3期42卷 7-10页

作者： Jinkang Ma Siyuan Hu Xueting Mu Rui Chen Kun Meng bing teng Lifeng Cao Degao Zhong College of Physics Qingdao UniversityQingdao266071China National Demonstration Center for Experiment Applied Physics Education(Qingdao University) Qingdao266071China College of Physics University-Industry Joint Center for Ocean Observation and Broadband CommunicationQingdao UniversityQingdao266071China Weihai Innovation Research Institute of Qingdao University Weihai264200China Quenda Terahertz Technologies Ltd.600 Jiushui E Rd.Qingdao266102China

*** In recent years,new organic second-order nonlinear optical materials have been widely used in optical imaging,data storage,information processing and communication,etc.[1].Therefore,designing and growing crystalli... 详细信息

关键词： nonlinear derivative crystal

Effect of OH^- on fluorescence properties in 1.5-1.6 μm for Er:Yb:YCOB crystal

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Journal of Rare Earths 2019年第9期37卷 924-930,I0001页

作者： Degao Zhong Chen Hu Shakir Ullah Hui Xu Jianhong Li Fei You Dongjuan Wang Shijia Sun Weijin Kong Jie Tang Zhenghe Yu bing teng College of Physics Qingdao UniversityQingdao 266071China National Demonstration Center for Experimental Applied Physics Education (Qingdao University) Qingdao 266071China CRYSTECH Inc. Qingdao 266107China Institute o f Engineering Materials Weifang Business Vocational CollegeWeifang 262234China

FTIR absorption spectra indicate that H^+can easily enter the crystal structure and form OH^-centers in Er:Yb:YCOB and O-H bonds prefer to lie in the a-c *** our current studied concentration level,crystal samples with higher OH-abso rption coefficie nts demonstrate stro nger fluo rescence intensity and longer fluorescence lifetime at 1535 *** the stretching vibration energy of OH-group approximately corresponds to the energy gap between the 4 I11/2 and 4 I13/2 levels of Er^3+,and thus,OH^-ions can shorten the fluorescence lifetime of Er^3+-4I11/2 level by the phonon-assisted cross-relaxation process between the Er^3+and *** curre nt results confirm that a certain conte nt of OH ions can enhance the ene rgy transfer process from Yb^3+to Er^3+and subsequently promote fluorescence output in 1.5-1.6μm.

关键词： Er:Yb:YCOB crystal OH^-ions Fluorescence output efficiency Energy transfer process Rare earths

A Facile Synthetic Route to L-Phosphinothricin

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Chinese Chemical Letters 2006年第2期17卷 177-179页

作者： Xue Song XU Han bing teng Guo Fu QIU Shu Cai LIANG Xian Ming HU School of Pharmacy Wuhan University Wuhan 430072

A convenient and effective method for synthesis of L-phosphinothricin was described. The highlight was involved in a simple access to the key intermediate L-2-amino-4-chlorobutyric acid derivative from the inexpensive... 详细信息

关键词： Synthesis L-methionine L-phosphinothricin.

Synthesis, crystal structure and thermal analysis of a new stilbazolium salt crystal

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Frontiers of Materials Science 2015年第2期9卷 147-150页

作者： bing teng Weijin KONG Ke FENG Fei YOU Lifeng CAO Degao ZHONG Lun HAO Qing SUN Sander van SMAALEN Wenhui GONG College of Physics Qingdao University Qingdao 266071 China Key Laboratory of Photonics Materials and Technology in Universi~iesof Shand'ongl Qingdao 266071 China Laboratory of Crystallography Universityof Bayreuth D-95440 BayreuihGermany

A new organic crystal of 4-N, N-dimethylamino-4＇-N＇-methyl-stilbazolium benzene sulfonate （DASBS） was synthesized and characterized for the first time. It is a derivative of 4-N, N-dimethylamino-4＇-N＇-methyl-stilbazolium tosylate （DAST） with the benzene sulfonate replacing p-toluenesulfonate. Single crystal XRD demonstrated that the crystal structure of DASBS. H20 was triclinic. The thermal analysis of this new crystal was also conducted, and the melting point was obtained to be 232℃.

关键词： organic crystal crystal growth single crystal X-ray diffraction thermalanalysis

Study on All-Dimension Growth method of ADP crystal

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Study on All-Dimension Growth method of ADP crystal

Lasing properties of a Yb ion in tetragonal LuPO_4 and LuVO_4 isomorphic crystals: A comparative study

第十六届全国晶体生长与材料学术会议

作者： MA Jiangoao teng bing ZHONG DeGao YU YueJuan College of Physics Science Qing dao University Laboratory of Photonics Materials and Technology in Universities of Shandong(Qing dao University)

By the use of the new all-dimension growth method, ADP crystals were grown from recovering its crystallographic morphology at first, then expanded along every dimension, so the growth speed of crystal improved obviously. The quality of crystal was evaluated by transmittance, laser scattering, dislocation etching pits, high-resolution diffraction curve, thermal gravimetric and differential thermal analysis. The advantages of all-dimension growth technology were obtained by comparison with conventional growth method.

关键词： ADP crystal, all-dimension growth, crystallographic morphology, growth speed

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Chinese Physics B 2018年第5期27卷 257-264页

作者： Xiao-Dan Dou Jing-Nan Yang Jie He Li-Sha Wang Wen-Juan Han Hong-Hao Xu De-Gao Zhong bing teng Jun-Hai Liu College of Physics Qinfdao University Qingdao 266071 China

A comprehensive investigation is carried out to compare the spectroscopic properties, absorption saturation behaviors and lasing properties of a Yb ion in tetragonal LuPO4 and LuVO4 isomorphic crystals. Significant distinctions are revealed in many aspects of the lasing behavior for the Yb ion doped in the two crystal hosts, and Yb：LuPO_4 proves to be superior to Yb：LuVO4 since it enables efficient laser action to be much more easily achieved. With a 0.6 mm thick crystal plate of Yb：LuPO4, an output power of 3.30 W can be generated with an optical–optical conversion efficiency of 50.8%; whereas with a 2 mm long miniature crystal rod, the output power produced can reach 8.35 W with an optical–optical conversion efficiency of 46.7%.

关键词： Yb ion lasing properties LuPO4 crystal LuVO4 crystal