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Rücktitelbild: Enhancement of Donor–Acceptor Polymer Bulk Heterojunction Solar Cell Power Conversion Efficiencies by Addition of Au Nanoparticles (Angew. Chem. 24/2011)

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Angewandte Chemie 2011年第24期123卷

作者： Dong Hwan Wang Do Youb Kim Kyeong Woo Choi Jung Hwa Seo Sang Hyuk Im Jong Hyeok Park O Ok Park Alan J. Heeger Center for Polymers and Organic Solids University of California at Santa Barbara Santa Barbara CA 93106 (USA) Fax: (+1) 805‐893‐4755 Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology (BK 21 Graduate Program) 373‐1 Guseong‐dong Yuseong‐gu Daejeon 305‐701 (Republic of Korea) Fax: (+82) 42‐350‐3910 KRICT‐RPFL Global Research Laboratory Advanced Materials Division Korea Research Institute of Chemical Technology Daejeon (Republic of Korea) School of Chemical Engineering and SKKU Advanced Institute of Nanotechnology (SAINT) Sungkyunkwan University Suwon 440‐746 (Republic of Korea) Fax: (+82) 31‐290‐7272

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Enhancement of Donor–Acceptor Polymer Bulk Heterojunction Solar Cell Power Conversion Efficiencies by Addition of Au Nanoparticles†

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Angewandte Chemie 2011年第24期123卷

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Back Cover: Enhancement of Donor–Acceptor Polymer Bulk Heterojunction Solar Cell Power Conversion Efficiencies by Addition of Au Nanoparticles (Angew. Chem. Int. Ed. 24/2011)

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Angewandte Chemie International Edition 2011年第24期50卷

作者： Dong Hwan Wang Do Youb Kim Kyeong Woo Choi Dr. Jung Hwa Seo Dr. Sang Hyuk Im Prof. Jong Hyeok Park Prof. O Ok Park Prof. Alan J. Heeger Center for Polymers and Organic Solids University of California at Santa Barbara Santa Barbara CA 93106 (USA) Fax: (+1) 805-893-4755 Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology (BK 21 Graduate Program) 373-1 Guseong-dong Yuseong-gu Daejeon 305-701 (Republic of Korea) Fax: (+82) 42-350-3910 KRICT-RPFL Global Research Laboratory Advanced Materials Division Korea Research Institute of Chemical Technology Daejeon (Republic of Korea) School of Chemical Engineering and SKKU Advanced Institute of Nanotechnology (SAINT) Sungkyunkwan University Suwon 440-746 (Republic of Korea) Fax: (+82) 31-290-7272 Jong Hyeok Park School of Chemical Engineering and SKKU Advanced Institute of Nanotechnology (SAINT) Sungkyunkwan University Suwon 440-746 (Republic of Korea) Fax: (+82) 31-290-7272 O Ok Park Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology (BK 21 Graduate Program) 373-1 Guseong-dong Yuseong-gu Daejeon 305-701 (Republic of Korea) Fax: (+82) 42-350-3910 Alan J. Heeger Center for Polymers and Organic Solids University of California at Santa Barbara Santa Barbara CA 93106 (USA) Fax: (+1) 805-893-4755

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Macromol. Biosci. 2/2011

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Macromolecular Bioscience 2011年第2期11卷

作者： Tomohiro Hiraishi Eriko Masuda Daisuke Miyamoto Naoki Kanayama Hideki Abe Mizuo Maeda Bioengineering Laboratory RIKEN Advanced Science Institute 2‐1 Hirosawa Wako‐shi Saitama 351‐0198 Japan Department of Innovative and Engineered Materials Tokyo Institute of Technology 4259 Nagatsuta Midori‐ku Yokohama Kanagawa 226‐8502 Japan Present address: Asahi Kasei Medical Co. Ltd. 6‐2700 Asahi‐cho Nobeoka‐shi Miyazaki 882‐0847 Japan Present address: Graduate School of Pure and Applied Science University of Tsukuba 1‐1‐1 Ten‐noudai Tsukuba‐shi Ibaraki 305‐8573 Japan Chemical Analysis Team RIKEN Advanced Science Institute 2‐1 Hirosawa Wako‐shi Saitama 351‐0198 Japan Present address: Bioplastic Research Team Biomass Utilization Research Group RIKEN Biomass Engineering Program 2‐1 Hirosawa Wako‐shi Saitama 351‐0198 Japan

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Contamination-free cell lysis microfluidic device using cell cross over

Contamination-free cell lysis microfluidic device using cell...

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13th International Conference on Miniaturized Systems for Chemistry and Life sciences, MicroTAS 2009

作者： Mun, Byung Phil Jung, Seung Mo Yoon, Sang Youl Lee, Jong Hyun Yang, Sung School of Information and Mechatronics Gwangju Institute of Science and Technology Korea Republic of Graduate Program of Medical System Engineering Gwangju Institute of Science and Technology Korea Republic of Department of Nanobio Materials and Electronics Gwangju Institute of Science and Technology Korea Republic of

ISBN: (纸本)9780979806421

Complicated and time-consuming cell purification processes prevent a micro cell lysis device from integrating with LOC (Lab-on-a-chip) or μ-TAS (μ-Total Analysis System) devices for cell analysis. In this paper, we present a microfluidic cell lysis device using a contamination-free cell cross over method in order to minimize the cell pretreatment procedure. © 2009 CBMS.

关键词： Microfluidics

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Deterministic modeling of the corrosion of low-carbon steel by dissolved carbon dioxide and the effect of acetic acid. I-effect of carbon dioxide

Deterministic modeling of the corrosion of low-carbon steel ...

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作者： Rosas-Camacho, O. Urquidi-Macdonald, M. Macdonald, D.D. Intercollegiate Graduate Program in Materials Science and Engineering Penn State University University Park PA 16802 United States Department of Engineering Science and Mechanics Penn State University University Park PA 16802 United States Center for Electrochemical Science and Technology Department of Materials Science and Engineering Penn State University University Park PA 16802 United States

ISBN: (纸本)9781607681212

Carbon dioxide (CO2) corrosion of carbon steel in the presence of brine has been a recognized problem in oil production for many years and it is becoming more common with the extensive use of CO2-flooding as an oil recovery technique. The presence of acetic acid is systematic in oil fields, however, its role in corrosion has not been well-recognized and its exact mechanistic role is still debated. The present work was carried out, in the first instance, to focus on developing an understanding of CO 2-corrosion of low-carbon steel and, in the second instance to ascertain the corrosion mechanistic effect of acetic acid. This understanding is achieved by developing a deterministic model that explains and accounts for the experimental observations from Electrochemical Impedance Spectroscopy (EIS) data and by extracting values for physical und chemical parameters that describe the system. The impedance model, based on the Point Defect Model, provides a good account of the formation and growth of a bi-layer passive film that comprises an point-defective oxide (inner) layer adjacent to the metal surface and a precipitated (outer) layer of siderite, FeCO3, that forms on the top of the inner layer. We conclude that the barrier oxide layer exists on the steel surface at pH values ranging from 4 to 6. ©The Electrochemical Society.

关键词： Carbon dioxide

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Macromol. Rapid Commun. 13/2010

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Macromolecular Rapid Communications 2010年第13期31卷

作者： Mai Sanjoh Shigehiro Hiki Yan Lee Makoto Oba Kanjiro Miyata Takehiko Ishii Kazunori Kataoka Department of Bioengineering Graduate School of Engineering The University of Tokyo Japan Department of Materials Engineering Graduate School of Engineering The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8656 Japan Core Research Program for Evolutional Science and Technology (CREST) Japan Science and Technology Agency (JST) Tokyo Japan Department of Chemistry Seoul National University Sillim‐dong Gwanak‐gu Seoul 151‐742 Korea Department of Clinical Vascular Regeneration Graduate School of Medicine The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8655 Japan Center for Disease Biology and Integrative Medicine Graduate School of Medicine The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐0033 Japan Center for NanoBio Integration The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8656 Japan

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Synthesis and Characterization Of Li1.1(Ni1/3Co1/3-xMn1/3 Mgx)O2 and Li1.1(Ni1/3Co1/3Mn1/3-x Mgx)O2 by Pechini Method for Lithium Ion Rechargeable Battery (LIB) Positive Electrode

Synthesis and Characterization Of Li1.1(Ni1/3Co1/3-xMn1/3 Mg...

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IUPAC 5th International Symposium on Novel materials and their Synthesis,19th International Symposium on Fine Chemistry and Functional Polymers(IUPAC 第五届国际新型材料及其制备学术研讨会暨第19届国际精细化学和功能高分子学术讨论会)

作者： P.B.Samarasingha H.W.M.A.C.Wijayasinghe M(h)rten Behm M.A.K.L.Dissanayake Physics Department Faculty of ScienceUniversity of PeradeniyaPeradeniyaSri Lanka Post Graduate Institute of Science University of PeradeniyaPeradeniyaSri Lanka Electrochemical Materials ProjectInstitute of Fundamental StudiesKandySri Lanka Uwa Wellassa University BadullaSri Lanka Department of Chemical Engineering and TechnologyApplied ElectrochemistryRoyal Institute of Technology (KTH)StockholmSweden Post Graduate Institute of ScienceUniversity of PeradeniyaPeradeniyaSri Lanka Electrochemical Materials Project Institute of Fundamental StudiesKandySri Lanka

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Dielectric constant at x -band microwave frequencies for multiferroic BiFeO3 thin films

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Journal of Applied Physics 2009年第7期105卷

作者： Abdul Ahad, Faris B. Hung, D.S. Yao, Y.D. Lee, S.F. Tu, C.S. Wang, T.H. Chen, Y.Y. Fu, Y.P. Institute of Physics and Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica Taipei 115 Taiwan Department of Engineering and System Science NTHU Hsinchu 300 Taiwan Department of Information and Telecommunication Engineering Ming Chuan University Taipei 111 Taiwan Department of Materials Engineering Tatung University Taipei 104 Taiwan Department of Graduate Institute of Applied Science and Engineering Fu Jen University Taipei 242 Taiwan Department of Materials Science and Engineering National Dong Hwa University Hualien 974 Taiwan

The magnetic-induced dielectric responses of BiFeO3 (BFO) thin films were measured at the X -band microwave frequency ranged from 7 to 12.5 GHz. The measurement was given initially by a high-precision cavity microwave resonator without magnetic field. Both the real and imaginary parts of the permittivity showed its dielectric property as a function of the measuring frequency. The X -band dielectric responses of the BFO thin film were then measured by a controlled magnetic field at room temperature. The data demonstrated up to 2.2% dielectric tunability by using only 3.46 kOe magnetic field at TE107 mode (9.97705 GHz). © 2009 American Institute of Physics.

关键词： Magnetic fields

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Environmental effect on the fluorescence lifetime and quantum yield of single extended luminescent conjugated polymers

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Journal of Physical Chemistry C 2009年第43期113卷 18681-18688页

作者： Rassamesard, Areefen Huang, Yi-Fang Lee, Hsu-Yang Lim, Tsong-Shin Li, Ming Chung White, Jonathon David Hodak, Jose Hector Osotchan, Tanakorn Peng, K.Y. Chen, S.A. Hsu, Jui-Hung Hayashi, Michitoshi Fann, Wunshain Institute of Atomic and Molecular Sciences Academia Sinica P.O. Box 23-166 Taipei 106 Taiwan Department of Physics Faculty of Science Mahidol University Rama 6 Rd. Bangkok 10400 Thailand Department of Physics Tunghai University Taichung 407 Taiwan Department of Chemistry National Tsing Hua University Hsinchu 30013 Taiwan Molecular Science and Technology Program Taiwan International Graduate Program Academia Sinica Taipei 115 Taiwan Center for Condensed Matter Sciences National Taiwan University Taipei 106 Taiwan Department of Photonics Engineering Yuan Ze University Taoyuan Taiwan ThEP Center Commission of Higher Education 328 Si Ayuthaya Rd Bangkok 10400 Thailand Department of Chemical Engineering National Tsing Hua University Hsinchu 300 Taiwan Department of Materials and Optoelectronic Science National Sun Yat-sen University Kaohsiung Taiwan Institute of Polymer Science and Engineering National Taiwan University Taipei 106 Taiwan Department of Physics National Taiwan University Taipei 106 Taiwan

To investigate the local environment's effect on the lifetime and quantum yield of extended polymer chains in the absence of intra-and interchain aggregation, short, rodlike polymers of poly(2,5-di-n-octyloxy-1,4- phenylenevinylene) (DO-PPV) were dissolved in chloroform and then embedded in a polystyrene matrix. The fluorescence lifetime was found to increase by 45% in moving from the solution to the matrix form. By using the absorption and emission spectra of the chloroform solution to estimate the radiative and nonradiative rate constants for the polymer in solution, along with calculations based on an exciton model, the corresponding decay rate constants for the polymer embedded in the matrix were obtained. The close agreement between the calculated and experimental values of fluorescent lifetime in the matrix proved the applicability of the exciton model used. On the basis of the model, the average quantum yield of isolated polymers in the matrix was calculated to be a factor of 2 higher than in solutionsan effect arising from a 59% decrease in the nonradiative rate constant and, to a smaller extent, from a 20% increase in the radiative decay rate due to the different dielectric constants of the environments. These results suggest that by extending and isolating single luminescent polymers, high quantum yield devices are possible. © 2009 American Chemical Society.

关键词： Rate constants

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