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The Storage Cell Circuit with Memristor Characteristics of Poly(n-vinylcarbazole) Films

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Chinese Physics Letters 2015年第7期32卷 214-217页

作者：李蕾孙艳梅温殿忠 Key Laboratory of Electronic Engineering College of Heilongjiang ProvinceHeilongjiang University

A kind of non-conjugated polymer memory material, poly（n-vinylcarbazole）, is used to investigate silicon-based storage performance with the fact that the one-bit storage cell circuit consists of a sandwiched indium-tin- oxide/poly（n-vinylcarbazole）/Al and an n-type metal-oxide-semiconductor field effect transistor. The memristor on the basis of a nano poly（n-vinylcarbazole） film exhibits electrical bistability and flash memory features, for which the switching-on voltage is -1 V and the on/off current ratio approaches 104. At ambient temperature, the memory circuit possesses higher reliability within the programming time 104 s. The output voltage is dose to 0.5 V during logic 1, while it is approximately 14mV in the logic 0. This paves the way for the study on the technology concerning the binary encoding and data storage of nonvolatile memories.

关键词： MOSFET Films n-vinylcarbazole

Photorefractive Effect in Poly(n-vinylcarbazole)-Based Composite Sensitised by C_(60)

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Chinese Chemical Letters 1997年第9期8卷 807-810页

作者： Zhi Jie ZHAnG Yi Wang CHEn Yuan Kang HE and Hui Ying CHEn(Institute of Polymer Science, College of Chemistry, Peking University, Beijing, 100871)Zhi Jian CHEn Shu Feng WAnG and Qi Huang GOnG(Department of Physics, Mesoscopic Physics Laboratory, Peking U Institute of Polymer Science College of Chemistry Peking University Beijing 100871 China Department of Physics Mesoscopic Physics Laboratory Peking University Beijing 100871 China

A new PVK-based photorefractive polymer composite sensitized by C60 and doped with a higher content of EO chromophore was prepared. The high optical quality thin-film was formed between two ITOcovered glass electrodes. Two-beam-coupling (2BC) experiment was performed by using a He-ne laser (at wavelength 632.8nm), and an obvious photorefractive performance was observed. The dependence of two-beamcoupling gain coefficient on the applied poling dc electric field was measured.

关键词： Photorefractive Effect in Poly Based Composite Sensitised by C n-vinylcarbazole Rev

Green Light-Emitting Organic Electroluminescent Device with a new Fluorescent Dye Dispersed in Poly(n-vinylcarbazole) Emitter Layer

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Chinese Chemical Letters 1997年第1期8卷 79-80页

作者： Yong QIU De Qiang ZHAnG Zhi Liang XIE Xiao Xuan LIU(Department of Chemistry Tsinghua University, Beijing 100084) Department of Chemistry Tsinghua University Beijing 100084 China Shantou Univeristy Shantou China

Double-layer organic electroluminescent devices have been constructed. A new fluorescent dye, 9,10-bis(phenylethynyl)anthracence, was chosen as the dopant which was molecularly dispersed in the polymer film, and green... 详细信息

关键词： Green Light-Emitting Organic Electroluminescent Device with a new Fluorescent Dye Dispersed in Poly n-vinylcarbazole Emitter Layer

THE CATALYTIC EFFECTS OF OXYGEn AnD AMInES In THE REDOX-InITIATED DIMERIZATIOn OF n-vinylcarbazole*

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Science China Chemistry 1990年第3期33卷 267-275页

作者：王其华何国杰 Department of Chemistry University of Massachusetts/Boston Boston Massachusetts 02125 USA Department of Chemistry Zhongshan University Guangzhou 510275 PRC

The redox reaction between n-vinylcarbazole (nVC) and various oxidants including Ce(Ⅳ), Fe(Ⅲ)and benzoylperoxide in methanol proceeds via the initial formation of the nVC n-cation radical which in turn leads to the formation of the nVC cyclic dimer, trans-1,2-dicarbazylcyclobutane. Molecular oxygen and a few arylamines are able to accelerate the rate of the formation and increase the yield of the dimer. The mechanism of this process and the functions of oxygen and arylamines are presented as follows: The participation of molecular oxygen is to facilitate the dissociation of the resulting reduced metal ion and the nVC n-cation radical ion pair or charge transfer complex, thereby releasing the free nVC n-cation radical and increase the rate of the formation and yield of the dimer. The arylamine in this reaction between nVC and oxidants can be viewed as electron transfer agent between nVC and the oxidant. Because the amines are present in small amount relative to the oxidants and can be regenerated in process, it is essentially catalytic in nature.

关键词： Dimerization of n-vinylcarbazole redox reaction mechanism.

One Pot Synthesis of Medicinally Important ***-4-am i no s u bstituted-1,2,3,4-tetrahyd roq u i nolines

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Chinese Journal of Chemistry 2012年第3期30卷 534-540页

作者： Kiran,Kumar H.C Mahadevan,K.M Prabhakara,VarmaP Srinivasa,A Department of Post Graduate Studies and Research in Chemistry School of Chemical SciencesKuvempu UnivesityShankaraghatta-577451KarnatakaIndia Bioorganics andApplied Materials Pvt.Ltd. PIABangalore-58KarnatakaIndia Cdymax(India)Pharma Pvt.Ltd.116/117 KIADB Industrial AreaJiganiBangalore-560105KarnatakaIndia

A simple synthesis of medicinally important cis-2-methyl-4-azapan-2-one-1,2,3,4-tetrahydroquinolines/cis-9- （2-methyl-l,2,3,4-tetrahydroquinolin-4-yl）-9H-carbazole was reported. Multicomponent one pot synthesis with ani- lines and n-vinylcaprolactam/n-vinyl carbazole via imino Diels-Alder reaction by using antimony trichloride as catalyst and acetonitrile as solvent was employed. nMR technique （2D） was used to study the regio- and stereo- chemistry of newly synthesized compounds. The cis diastereo-selectivity of the products was predicted by COSY and nOESY studies.

关键词： imino Diels-Alder antimony trichloride tetrahydroquinoline n-vinylcaprolactam n-vinylcarbazole