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Science China Chemistry 2004年第5期47卷 396-406页

作者： ZHANG Zunting GUO Yaning LIU Qianguang School of Chemistry and Materials Science Shaanxi Normal University Xi'an 710062 China School of Chemistry and Materials Science Shaanxi Normal University Xi'an 710062 China School of Chemistry and Materials Science Shaanxi Normal University Xi'an 710062 China

The sulfonate derivate of chrysin coordinates with Ca2+ to form a novel tetra-nuclear calcium complex [(Ca(C15H8O7S)(H2O)(DMSO)3(Ca(C15H8O7S)(DMSO)2]·4DMSO. The structure of the complex is characterized by IR,1H NMR and X-ray single-crystal diffraction analysis. The results show that the complex crystallizes in triclinic, space group Pī, cell parametera = 1.4725(6) nm,b = 1.6480(7) nm,c = 2.1006(8) nm, α = 83.928(7)°, β= 85.938(7)°, γ= 85.212(7)°,V = 5.041(3) nm3,Dc = 1.476 g/cm3,Z = 2, μ=0.568 nm?1,F(000) = 2324,R = 0.0778,wR = 0.1821. In the complex, four Ca2+ which are bridged by four 5-hydroxyanion-7-dihydro-xyfla-vone-6-sulfonate ligands with their carbonyl and 5-hydroxyanion group build an approximate square. The coordination number of Ca2+ is 7 and the coordinated atoms are all oxygen from the carbonyl, hydroxyl and suflo-group of 5-hydroxyanion-7-hydroxyflavone-6-sulfonate, H2O and DMSO. Four ligands locate on two sides of the square. Two of them on the same side are almost paralleled and aromatic п-п stacking exists between them. Ligands on the opposite side are nearly perpendicular to each other. Meanwhile, the solid of title compound has the photoluminescent phenomenon. The title compound emits green fluorescence (λem = 520 nm) when it is excited at the wavelength of 410 nm and its photoluminescent mechanism is discussed.

关键词： chrysin, sulfonation, tetra-nuclear calcium complex, crystal structure, photoluminescence.

Synthesis and photoluminescence.of a Novel Iridium Complex (BuPhOXD)_2Ir(acac) with Unit of 1, 3, 4-Oxadiazole

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Chinese Chemical Letters 2005年第2期16卷 241-244页

作者： ZhongLianWU MeiXiangZHU YuLIU JianLIU JianRenLI YuPingYANG QuanGAN WeiGuoZHU CollegeofChemistry XiangtanUniversityXiangtan411105 CollegeofChemistry XiangtanUniversityXiangtan411105／／DepartmentofChemistryQiongzhouUniversityWuzhishan572200

A novel cyclometalated iridium complex with 1, 3, 4-oxadiazole moiety was synthesizedand characterized. Its UV and photoluminescent properties were studied. The strong UVabsorption intensity around 462 nm attributed to spin-forbidden triplet metal–ligand charge transferband and photoluminescence.at 518 nm were observed. This indicated that achieved iridiumcomplex could be used as an efficient electrophosphorescent material.

关键词： Iridium complex 1 3 4-oxadiazole synthesis photoluminescence.

Strong Room-Temperature photoluminescence.from the Novel Adduct of C_(60) with Aliphatic Amines

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Chinese Chemical Letters 2000年第8期11卷 713-716页

作者： Jin Li QIAO, Qiao Juan GONG, Chuan DONG, Wei Jun JIN (Department of Chemistry,Shanxi University, Taiyuan 030006 Department of Chemistry, Arts and Science college,Taiyuan University of Technology,Taiyuan 030024) Department of Chemistry Shanxi University Taiyuan 030006 China Department of Chemistry Arts and Science College Taiyuan University of Technology Taiyuan 030024 China

Strong room-temperature photoluminescence.from the adducts of C60 reacting with five different aliphatic amines, namely propylethylamine (PPA), n-butyl amine (BTA), n-heptylamine (HPA) and dodecylamine (DDA) and diethylamine (DEA), was firstly found from their toluene solution at relatively shorter wavelength around 519 *** fluorescence intensity has a good correlation with the length of n-alkyl group chain, the steric position and concentration of different amines and setting of solution as well as the UV-radiation. Their fluorescence quenching by concentration and by aromatic electron-donor N,N-dimethylaniline (DMA) were first investigated and determined.

关键词： C60 adduct aliphatic amines photoluminescence.

Study on Interaction between Chitosan and CdS Quantum Dots via photoluminescence.Spectra

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Chinese Chemical Letters 2004年第4期15卷 463-466页

作者： ZhanLI YuMinDU YanWEN DepartmentofEnvironmentalScience WuhanUniversityWuhan430072

The interaction between CdS quantum dots and amino polysaccharide chitosan in aqueous solution was studied via photoluminescence.(PL) spectra. The surface binding of chitosan with different molecular weight (MW) quenched the luminescence of QDs due to the elimination of radioactive anion vacancy centers. This process fits well with the Perrin model; lower MW chitosan exhibits higher quenching efficiency due to better availability to the surface.

关键词： CdS quantum dots chitosan interaction photoluminescence.

Transient photoluminescence.Studies of Tunneling in Asymmetric Double Quantum Wells

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Chinese Science Bulletin 1994年第3期39卷 193-197页

作者：黄旭光蔡志岗李庆行余振新王太宏梅笑冰杨国桢 State Key Laboratory of Ultrafast Laser Spectroscopy Zhongshan University Guangzhou 510275 PRC Institute of Physics Academia Sinica Beijing 100080 PRC

1 Introduction Carriers in semiconductor quantum wells and superlattices can move in both paral-lel and perpendicular directions to interfaces of layers. Carriers must penetrate poten-tial barriers in their perpendicular movement and therefore, this kind of transport iscalled the carrier tunneling. Since Esaki and Tsu’s initiative research in 1973, especiallyafter the quantum well and superlattice materials came into the world, the carrier tun-neling in semiconductor heterostructures has received comiderable attention: (i) In

关键词： asymmetric double quantum wells tunneling process transient photoluminescence.

photoluminescence.of Fullerene C_(60)

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Chinese Science Bulletin 1994年第9期39卷 725-729页

作者：孙润光张新夷李多禄金长清蔡志岗 Changchun Institute of Physics Academia Sinica Changchun 130021 PRC National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029PRC State Key Ultrafast Laser Spectroscopy Laboratory Zhonghan UniversityGuangzhou 510275PRC

Cage-shaped carbon cluster-fullerene-is a new condensed state of carbon, whichis different from graphite and diamond. Fullerene C60 which has the truncatedicosahedron structure is the most intensively studied one because of its large amountin synthesis. Using different analysis and calculation methods, one can obtain differ-ent energy band gaps of C60 solid ranging from 2.6 to 1.5 eV. As to C60 molecule,using LDA method, the gap from HOMO （highest occupied molecular orbit） toLUMO （lowest unoccupied molecular orbit）is 1.9 eV, while using SSH model,

关键词： fullerene C60 Raman scattering photoluminescence.

Intensive up-conversion photoluminescence.of Er^(3+)-doped Bi_(7)Ti_(4)NbO_(21)ferroelectric ceramics and its temperature sensing

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Journal of Advanced Dielectrics 2014年第4期4卷 13-17页

作者： Hua Zou Jun Li Qiufeng Cao Xusheng Wang Xinwei Hui Yanxia Li Yao Yu Xi Yao Functional Materials Research Laboratory School of Materials Science and Engineering Tongji University Shanghai 201804P.R.China School of Mathematics and Physics Jiangsu University of Technology Changzhou 213001 P.R.China

The intensive up-conversion(UC)photoluminescence.and temperature sensing behavior of Er3t-doped Bi_(7)Ti_(4)NbO_(21)(BTN)ferroelectric ceramics prepared by a conventional solid-state reaction technique have been *** X-ray diffraction and field emission scanning electron microscope analyses demonstrated that the Er3t-doped BTN ceramics are single phase and uniform flake-like *** the Er3t ions doping,the intensive UC emission was observed without obviously changing the properties of *** optimal emission intensity was obtained when Er doping level was 15 mol.%.The temperature sensing behavior was studied by fluorescence intensity ratio(FIR)technique of two green UC emission bands,and the experimental data fitted very well with the function of temperature in a range of 133–573 *** suggested that the Er3t-doped BTN ferroelectric ceramics are very good candidates for applications such as optical thermometry,electro-optical devices and bio-imaging ceramics.

关键词： Ferroelectric temperature sensor Bi_(7)Ti_(4)NbO_(21) photoluminescence.

Self-organized Ge quantum dots and its photoluminescence.properties

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Progress in Natural Science:Materials International 1998年第1期 3-5页

作者：朱海军蒋最敏徐阿妹毛明春胡冬枝刘晓晗黄大鸣陆昉胡长武粕谷厚生 China Fudan University Institute of Metal Material Japan Japan Institute of Metal Material Northeast University Shanghai 200433 State Key Laboratory of Surface Physics

Ihe low dimensional system of Si and Ge has drawn great attention for their promising photoelectric properties. It has been theoretically predicted that when the size of quantum dots is smaller than a few nanorneters,... 详细信息

关键词： quantum dots photoluminescence.

Regarding the Optical Properties of Porous Layers Prepared on Si Substrates

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Journal of Energy and Power Engineering 2017年第11期11卷 687-692页

作者： Emil Pincik Robert Brunner Hikaru Kobayashi Pavel Vojtek Zuzana Zabudla Milan Mikula Jan Gregus Michal Kucera Institute of Physics SAS Dubravska cesta 9 Bratislava 84511 Slovak Republic Institute of Scientific and Industrial Research Osaka University Mihogaoka Ibaraki Osaka 567-0047 Japan FMPI of Comenius University Mlynsk6 dolina F2 Bratislava 84248 Slovak Republic Faculty of Chemical and Food Technology of STU Radlinskeho 9 Bratislava 8123 7 Slovak Republic Institute of Electrical Engineering SAS Dubravska cesta 9 Bratislava 84104 Slovak Republic

The paper deals with the complex refractive index and photoluminescence.in the IR-VIS light region of two sample types （i） black p-type silicon （BSi） produced by the surface structure chemical transfer method using Pt catalytic mesh, and （ii） porous p-type silicon prepared by standard electrochemical etching. We present, compare, and discuss the values of the IR-VIS complex refractive index obtained by calculation using the Kramers-Kronig transformation and the photoluminescence.properties thereof. The results indicate that differences between the optical properties of the BSi and the porous Si are given by （a） the oxidation procedure of BSi, （b） the thickness of the formed black and porous Si layer, and by （c） the porosity of both layer types. We assume that the photoluminescence.signal generated by oxidized BSi structures can be mainly related to the quantum confinement effect, while the photoluminescence.of the porous p-type Si is caused by the optical activity of the SiOxHy compounds covering its surface region.

关键词： Black silicon porous silicon complex refractive index photoluminescence.