著者

竹下 斉

出版者

九州大学機能物質科学研究所

雑誌

九州大学機能物質科学研究所報告 (ISSN:09143793)

巻号頁・発行日

vol.10, no.1, pp.1-8, 1996

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Organic chemistry has been a wonderland of science; she has been a center of beauty and charm among the rather cool and calm material science. There are full of surprise when ones get into the scene. Herein described are our small shells collected in a seashore when we were in this Institute

著者

又賀 駿太郎 五郎丸 英貴 Costea Ion アンドリーセン スヴェン ティーマン ティース 澤田 剛 高橋 和文

出版者

九州大学機能物質科学研究所

雑誌

九州大学機能物質科学研究所報告 (ISSN:09143793)

巻号頁・発行日

vol.14, no.2, pp.157-164, 2000

被引用文献数

1

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Oxadiazolopyridine compounds have seen synthesized with the aim of preparing red fluorescent organic material for organic electrolum inescent devices. 10-Oxoindenooxadiazolopyridines, which were synthesized from acetophenone derivatives in 4 steps, show red fluorescence in the solid state, albeit with a weak intensity. 10-Hydroxy derivatives emit fluorescence of yellow to orange color, however these compounds are instable in air. Oxadiazolopyridenes having thiophene and furan rings at the 4- and 7-positions, prepared from the corresponding heterocyclic methyl ketones, emit intense red fluorescence above 600nm in the solid state. Of special note is 4,7-di(5'-phenyl-2'-thienyl)oxadiazolopyridine which shows red fluorescence at 669nm. An EL device using 5'-phenyl-2'-thienyl derivative as a light-emitting materials was fabricated by Kyushu Matsushita corporation. This device emitted red EL at 680nm. In the cyclic voltammogram, oxadiazolopyridines show a reversible redox wave at -0.9~-1.17V. The oxadiazolopyridine ring having an electron-withdrawing substituent was reduced at low cathodic potential.

著者

田代 昌士

出版者

九州大学機能物質科学研究所

雑誌

九州大学機能物質科学研究所報告 (ISSN:09143793)

巻号頁・発行日

vol.3, no.2, pp.1-6, 1990-12-10

著者

富村 寿夫 藤井 丕夫 小別所 匡寛 鳥尾 倫彦 越後 亮三

出版者

九州大学

雑誌

九州大学機能物質科学研究所報告 (ISSN:09143793)

巻号頁・発行日

vol.7, no.1, pp.15-20, 1993-09-30

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The heat transfer characteristics of a gas-to-gas heat exchanger with permeable porous media have been investigated theoretically and experimentally. It is shown that in the case of relatively low working gas temperatures, i. e. 750~900[K], the temperature distributions of the porous media are not affected by the emissive or absorptive powers of the working gas. The values of the overall coefficients of heat transfer are estimated, and even in the relatively low temperatures, the present heat exchanger is shown to have almost the same values as conventional high performance gas-to-gas heat exchangers. Effects of the emissivity and transmissivity of a separating wall on heat transfer are also examined, and by using a black or transparent separating wall the overall coefficients of heat transfer are suggested to increase by about 1.5 or 2.3 times, respectively.

著者

越後 亮三 富村 寿夫 吉澤 善男 陣内 秀信

出版者

九州大学

雑誌

九州大学機能物質科学研究所報告 (ISSN:09143793)

巻号頁・発行日

vol.2, no.1, pp.53-66, 1988-06-30

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A numerical analysis has been performed on combined convective and radiative heat transfer in a circular tube flow system with porous medium, taking account of gaseous radiation and incoming radiations. Results for temperature and radiative heat flux distributions are presented and compared with those of a non-radiating gas. Extensive discussion is also given on the influences of those radiations on the recaptured energy at tube inlet section.

著者

藤井 丕夫 富村 寿夫 張 興

出版者

九州大学

雑誌

九州大学機能物質科学研究所報告 (ISSN:09143793)

巻号頁・発行日

vol.5, no.2, pp.189-200, 1992-03-31

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To utilize effectively natural resoureces of the solar, geothermal and ocean energy, and to develop new energy systems of hydrogen and bioenergy, it is important to understand the heat and mass transfer phenomena in some elementary equipment constructing the system. The heat transfer in such equipment is generally a complicated phenomenon combined with conduction, convection and radiation. The phenomenon is, therefore, difficult to be predicted from a simple combination of individual type of heat transfer. Herein, some related subjects are described in detail, particularly with respect to the studies of the highly efficient use of radiative energy through porous media and the natural convection air cooling of electronic equipment.

著者

鄭 相鐵 今石 宣之

出版者

九州大学

雑誌

九州大学機能物質科学研究所報告 (ISSN:09143793)

巻号頁・発行日

vol.11, no.1, pp.7-12, 1997-07-25

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Low pressure metal organic chemical vapor deposition (LPMOCVD) of Li_2O solid thin films from Li(DPM) in nitrogen-oxygen or argon-oxygen atmosphere is experimentally investigated by using a small hot wall tubular type reactor. XRD and ESCA analyses revealed that Li_2CO_3 film grows in nitrogen-oxygen atmosphere and Li_2O grows in argon-oxygen atmosphere. The grown lithium oxide or carbonate reacts with silicon or silica base materials to produce silicates. The CVD model analysis by means of the well known micro trench method and Monte Carlo simulation was not fully successful, but set of data on gas phase reaction rate constant and surface reaction constant was obtained.

著者

Andrews Rodney Grulke Eric A. Kimber Geoff

出版者

九州大学

雑誌

九州大学機能物質科学研究所報告 (ISSN:09143793)

巻号頁・発行日

vol.9, no.2, 1996-03-28