化學(xué)化工文獻(xiàn)檢索（Word）

1、化學(xué)化工文獻(xiàn)檢索 1 / 201、 OLED 最新發(fā)展Inkjet Printed Polymer on Flexible Substrate OLED ApplicationsFulvia Villani , Paolo Vacca , Guiseppe Nenna ,Olga Valentino , Gianabttista Burrasca,Tommaso Fasolino ,Garla Minarini and Dario della SalaEnea Centro Ricerche Portici ,piazzale Enrico Fermi 1 ,80055 Portici(NA)

2、,ItalyJ.Phys.Chem.C ,2009 ,113(30) ,pp 13398-13402DOI:10.1021/jp8095538Publication Date(Web):July 7,2009Copyright © 2009 American Chemical Society*Corresponding author ,Fulvia Villani ,CR ENEA Portici ,piazzale E.Fermi 1 ,80055 Portici(NA),Italy,tel .+39 081 7723344.Abstract In optoelectronics,

3、 inkjet printing (IJP) technology is being developed as an alternative to the traditional techniques for organic materials deposition. In this work, we report the fabrication of organic light-emitting diodes (OLEDs) on the flexible substrate by studying the effect of a surface chemical treatment on

4、the inkjet printed polymer film morphology. The employed piranha treatment increases the substrate surface energy and improves the wettability, thus inducing a decrease in the IJ printed drop thickness. The IJ printed polymer (poly(9,9-dihexyl-9H-fluorene-2,7-diyl) is the hole-transporting layer (HT

5、L) of a hybrid structure in which the other layers are deposited by vacuum thermal evaporation. Furthermore, in order to determine the effect of the IJ deposition method on the manufactured OLED performances, we compare them to those of devices fabricated using standard technologies. With this aim,

6、OLEDs with the same structure are fabricated by replacing the IJ printed polymer with a spin-coated film employing the same polymer solution. The electrical and optical properties of the electroluminescent devices are investigated and discussed. Despite the lack of thickness uniformity in IJ printed

7、 film, which is an intrinsic, technological limit, OLEDs with IJ printed HTL show electro-optical characteristics that are similar to the ones of OLEDs with spin-coated HTL.譯文：噴墨印刷聚合物在OLED柔性底層的應(yīng)用在光電子學(xué)中，噴墨印刷（IJP）技術(shù)已經(jīng)發(fā)展成為替代傳統(tǒng)有機(jī)材料沉積技術(shù)的一種新型技術(shù)。在這項(xiàng)工作中，我們通過研究對(duì)噴墨印刷聚合物薄膜形態(tài)表面化學(xué)處理的效果，報(bào)告了韌性底層上有機(jī)發(fā)光二極管（OLEDs）的構(gòu)成。

8、 的處理不僅增加了底層的表面能，也提高了它的可濕性，從而誘發(fā)了噴墨印刷層厚度的減少。噴墨印刷聚合物（聚（9，9-二己烷）是一種混合結(jié)構(gòu)的空穴傳輸層（HTL），此結(jié)構(gòu)的其他層面都由于真空熱蒸發(fā)作用而被沉積。此外，為了測(cè)定噴墨沉積的方法對(duì)生產(chǎn)的OLED性能的影響，我們用標(biāo)準(zhǔn)技術(shù)比較了其與原來制造的設(shè)備。以此為目的，具有相同結(jié)構(gòu)的OLED都被改造為將采用相同聚合物溶液的旋涂薄膜代替噴墨印刷聚合物的新結(jié)構(gòu)。電致發(fā)光器件的光學(xué)和電學(xué)的性質(zhì)都已經(jīng)研究探討。盡管在噴墨印刷層中缺少統(tǒng)一的薄層厚度，這是內(nèi)在的，技術(shù)性的限制，具有噴墨印刷空穴傳輸層的OLED在光電特性上與具有旋涂空穴運(yùn)輸?shù)腛LED是相同的。Hig

9、hly Efficient Color-Tunable OLED Based on Poly(9,9dioctylfluorene) Doped with a Novel Europium ComplexUmberto Giovanella ,Mariacecilia Pasini ,Christelle Freund ,Chiara Botta ,William Porzio and Silvia Destri Istituto per lo Studio delle Macromolecole ,CNR Via Bassini 15,20133 Milano ,Italy ,and Pol

10、o scientifico e tecnologico del CNR,via Fantoli 16,20138 Milano ,Italy J.Phys. Chem.C ,2009,113(6),pp 2290-2295 DOI:10.1012/jp809088n Publication Date (Web):January 21,2009 Copyright © 2009 American Chemical Society *Corresponding author,u.giovanellar.it Abstract Tunable dichromic electrolumine

11、scence is obtained from a blend of Eu3+ complex in polyfluorene by a single spin-coatable emitting layer device with external quantum efficiency as high as 1%, the highest reported in literature to our knowledge. The design of a complex whose ligand increases the site isolation of Eu3+ ion allows re

12、duction of the back-transfer quenching effects that prevented up to now the multicolor electroluminescence of Eu3+ complex/polyfluorene blends. Energy transfer mechanisms involving singlet and triplet excitons are analyzed by focusing on the effects of site isolation and polarity of the new ligand t

13、hat provide homogeneous dispersion of the complex in the conjugated polymer.譯文：基于聚（9，9-辛基芴）的一種新型摻雜銪的復(fù)合物的高效顏色可調(diào)OLED 可調(diào)重鉻酸電致發(fā)光是由一種含Eu3+復(fù)合體與聚芴的混合物在外部量子效率高達(dá)1%（已知文獻(xiàn)中所報(bào)道的最高效率）的單層旋涂發(fā)光層設(shè)備上產(chǎn)生的。配合物能夠增加Eu3+離子間的隔離的混合物的設(shè)計(jì)，可以減小背部猝火效應(yīng)，從而可以阻止目前為止Eu3+復(fù)合體/聚芴混合物的多色電致發(fā)光。以粒子間間隔的效果和新型配合物的極性為重點(diǎn)，我們對(duì)涉及單態(tài)和三重激子的能量轉(zhuǎn)移機(jī)制進(jìn)行了分析，從而

14、提供了共軛聚合物中復(fù)合體的均勻分散。2、 自主裝電致發(fā)光材料Ligand Methylation and Coordination Geometry Effects on the Properties of Zinc and Lithium(8-Quinolinolato) Chelate Electroluminescent MaterialsLinda S.Sapochak, Flocerfida L. Endrino, Jeffrey B. Marshall, Daniel P. Fogarty, Nancy M. Washton, Sanjini Nanayakkara Departm

15、ent of Chemistry ,University of Nevada ,4505 Maryland Parkway ,Las Vegas ,NV 89154-4003 Chapter 13,pp 171-186 Chapter DOI:10.1021/bk-2003-0844.ch013 ACS Symposium Series ,Vol.844 ISBN 13:9780841237827eISBN:9780841219472 Publication Date (Print): February 20, 2003 Copyright © 2003 American Chemi

16、cal SocietyAbstractWe present a study of the photophysical (absorption and emission) and thermal stability properties of zinc bis(8-quinolinolato) (Znq2), lithium mono(8-quinolinolato) (Liq) chelates, and their methylated derivatives. These materials are compared with aluminum tris(8-quinolinolato)

17、(Alq3), which has proven to be viable for use in organic light-emitting devices (OLED's). We show that regardless of metal ion substitution the effect of ligand methylation on the photophysical and thermal properties is similar for all Mqn materials. However, strong solvent dependence of absorpt

18、ion, emission and 1H NMR chemical shifts for zinc and lithium chelates support a stronger ionic character of the metal-ligand bonding, which may have significant effects on electroluminescent properties.譯文：配體的甲基化和調(diào)和幾何作用對(duì)鋅，鋰（8-羥基喹啉）螯合物電致發(fā)光材料性能的影響本文介紹了對(duì)光物理（光吸收和發(fā)射）的研究和鋅-二（8-羥基喹啉）（Znq3），鋰-（8-羥基喹啉）（Liq）螯

19、合物以及它們的甲基化衍生物的熱穩(wěn)定性。將這些材料與鋁-三（8-羥基喹啉）作比較，而鋁-三（8-羥基喹啉）已經(jīng)被證明可用于有機(jī)電致發(fā)光器材（OLED）。我們已經(jīng)證明了無論是何種金屬離子參加取代作用，配體的甲基化對(duì)所有Mqn型材料的光物理性質(zhì)與熱穩(wěn)定性的影響都是相似的。然而，鋅和鋰的螯合物的吸收，排放，核磁共振和化學(xué)位移對(duì)溶劑的強(qiáng)依賴性支持較強(qiáng)的金屬離子性配體結(jié)合，可能對(duì)發(fā)光性能的重大影響。Chromophore-Labeled Quinoxaline Derivatives as Efficient Electroluminescent MaterialsK. R. Justin Thomas,

20、 Marappan Velusamy,Jiann T. Lin, Chang-Hao Chuen,and Yu-Tai Tao Institute of Chemistry, Academia Sinica, 115 Nankang, Taipei, Taiwan, and Department of Chemistry, National Central University, 320 Chungli, Taiwan Chem.Mater.,2005, 17 (7), pp 18601866 DOI:10.1021/cm047705a Publication Date (Web): Marc

21、h 5, 2005 Copyright © 2005 American Chemical Society Academia Sinica To whom correspondence should be addressed. Fax: 886-2-27831237. National Central University.Abstract Electroluminescent materials comprising quinoxaline, triarylamine, and fluorophores such as carbazole, pyrene, and fluorene

22、were prepared by using a key step involving a Pd-catalyzed CN coupling reaction. Chromophores were embedded both at quinoxaline and triarylamine units, and their influence on photophysical and thermal properties was investigated. Quinoxalines possessing more electron-donating amines exhibit lower fl

23、uorescence quantum efficiency and the photoluminescence (PL) is severely affected by the polarity of the solvent used for measurement. Bulky and rigid aromatic groups such as pyrene and carbazole enhance the glass transition temperature of the derivatives. Oxidation potential of the triarylamine was

24、 easily tuned by the aromatic substituents while retaining the reduction potential of the quinoxaline segment. This provides us a method for tuning the photophysical and thermal properties maintaining the energy levels of the dipolar compounds. The electroluminescent devices fabricated using these m

25、aterials as hole-transporters and emitters led to intense light emission. The emission color is green and corresponds well with the film PL of the material used.譯文：標(biāo)記生色團(tuán)的喹喔啉衍生物作為高效電致發(fā)光材料 電致發(fā)光材料包括喹喔啉、三芳胺和熒光團(tuán)如咔唑，芘，芴等等，它們的制備都要經(jīng)過一步關(guān)鍵反應(yīng)，其中都涉及鈀催化的C - N的偶聯(lián)反應(yīng)。生色團(tuán)都被嵌入在喹和三芳胺的單位，以此來研究它們對(duì)光物理和熱性能的影響。擁有較多的電子基胺的喹喔

26、啉有較低的熒光量子效率，同時(shí)，發(fā)光（PL）受到用于測(cè)量的溶劑的極性的極大影響。大分子芳香族化合物如芘，咔唑會(huì)提高衍生物的玻璃化轉(zhuǎn)變溫度。三芳胺的氧化能很容易在保留喹喔啉部分的還原電位的同時(shí)被芳香基團(tuán)調(diào)整。這為我們提供了在保持偶極化合物的能量水平的同時(shí)調(diào)整光物理和熱性能的方法。以此為空穴運(yùn)輸材料和發(fā)射器所制造的電致發(fā)光器件會(huì)產(chǎn)生強(qiáng)的發(fā)射光。發(fā)射的光是綠色的并且很好地符合了所用材料的薄膜發(fā)光顏色。Amorphous 2,3-Substituted Thiophenes: Potential Electroluminescent MaterialsYi Zhen Su ,Jiann T. Lin ,

27、Yu-Tai Tao ,Chung-Wen Ko ,Su-Ching Lin ,and Shih-Sheng Sun Institute of Chemistry, Academia Sinica, Taipei, Taiwan 115, Republic of China, and Department of Chemistry, National Central University, Chungli, Taiwan 320, Republic of China Chem.Mater., 2002, 14(4), pp 18841890 DOI:10.1021/cm011671e Publ

28、ication Date (Web): March 27, 2002 Copyright © 2002 American Chemical Society Academia Sinica. Corresponding author: Fax Int cod + (2)27831237; e-mail .tw. National Central University. Present address: Department of Chemistry, State University of New York at Binghamton, NY,

29、13902-6016.AbstractAmorphous2,3-disubstituted thiophenes and 2,3,5-trisubstituted thiophenes which contain two and four peripheral triarylamine moieties, respectively, have been synthesized and characterized. The compounds are weakly to moderately fluorescent with a lifetime of 1 ns. Double-layer de

30、vices were fabricated using 2,3-bis5-4 -(diphenylamino)phenyl-2-thienylthiophene (10) or 2,3-bis4-4(1-naphthyl)(phenyl)amino)-p-biphenylthiophene (12) as hole-transport as well as emitting materials. Both green light-emitting device ITO/10/TPBI (or Alq3)/Mg:Ag (TPBI = (1,3,5-tris(N-phenylbenzimidazo

31、l-2-yl)benzene); Alq3 = tris(8-hydroxyquinolinato)aluminum) and blue light-emitting device ITO/12/TPBI/Mg:Ag exhibit promising physical performance.譯文：無定形 2,3 -取代噻吩：具有潛能的電致發(fā)光材料包含兩個(gè)和四個(gè)周邊三苯胺基團(tuán)的無定形 2,3 -二取代噻吩和2,3,5三取代噻吩，分別被合成和表征。這種復(fù)合物是中弱性熒光化合物，只有1納秒壽命的。雙層器件通過采用2,3 -二（5' - 4' - （二苯胺基）苯基 -2'-

32、噻吩）噻吩（10）或2,3 -二（4 - 4'（ 1 -萘基）（苯基）氨基）-對(duì)聯(lián)苯噻吩（12），被制造為空穴運(yùn)輸以及發(fā)光材料。無論是綠發(fā)光器件ITO/10/TPBI（或Alq3）/鎂：銀（TPBI =（1,3,5 -三（正-苯基咪唑 - 2 -基）苯）;Alq3=（8 -羥基喹啉）鋁）還是藍(lán)色發(fā)光器件ITO/12/TPBI/Mg：銀的都展現(xiàn)出的其物理性能的前景。3、 草甘瞵性能與制備研究 GlyphosateAnne Louise Gimsing1 ,Afonso Maria dos Santos2 1 Department of Natural Sciences ,The Roya

33、l Vetetinary and Agricultural Universiity ,Thorvaldsensvej 40,1871 Frederiksberg C.,Denmark 2 INQUMAE and Departmento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pabelln II 3er

34、 Piso, C1428EHA Buenos Aires, Argentina Chapter 16 ,pp 263-277 Chapter DOI:10.1021/bk-2005-0910.ch016 ACS Symposium Series ,Vol.910 ISBN13:9780841238978eISBN:9780841220287 Publication Date(Print):July 21,2005 Copyright © 2005 American Chemical SocietyAbstractThe herbicide glyphosate (N-phosphon

35、omethylglycine) interacts strongly with many soil components. It forms strong complexes with many metals in solution, and it is adsorbed through innersphere complexation to iron- and aluminium oxides. Glyphosate can also be adsorbed by clay minerals by forming complexes with interlayer cations. Beca

36、use of these interactions, glyphosate is strongly adsorbed in soils. It is mainly the phosphonic acid moiety that participates in the adsorption, and therefore phosphate competes with glyphosate for adsorption sites.譯文：草甘膦除草劑草甘膦（正-膦羧甲基甘氨酸）與許多土壤成分有強(qiáng)烈的相互作用。它在土壤中能夠與許多金屬形成配合物，并且通過內(nèi)部球形絡(luò)合作用被鐵和鋁的氧化物吸收。草甘膦也

37、可以通過與間層陽離子形成絡(luò)合物從而被黏土礦物質(zhì)所吸收。由于這些相互作用，草甘膦強(qiáng)烈地吸附在土壤中。因?yàn)橹饕橇姿岵糠謪⑴c吸附作用，所以磷肥化合物會(huì)與草甘膦競(jìng)爭(zhēng)吸附作用點(diǎn)。Effects of Surface Sorption on Microbial Degradation of GlyphosateYlva Schnürer ,Per Persson , Mats Nilsson ,Anders Nordgren ,and Reiner Giesler Department of Forest Ecology, Swedish University of Agricultural

38、Sciences, 901 87 Ume, Sweden, Department of Chemistry, Aquatic Chemistry, Ume University, 901 87 Ume, Sweden, and Climate Impact Research Centre, Department of Ecology and Environmental Science, Ume University, Box 62, 981 07 Abisko, Sweden Envir.Sci.Technol.,2006,40(13),pp 4145-4150 DOI:10.1021/es0

39、523744 Copyright © 2006 American Chemical Society Department of Forest Ecology, Swedish University of Agricultural Sciences. Department of Chemistry, Aquatic Chemistry, Umeå University. Climate Impact Research Centre, Department of Ecology and Environmental Science, Umeå University.Ab

40、stractSorption may affect the bioavailability and biodegradation of pesticides in soils. The aim of this study was to test the effect of surface sorption on microbial utilization of the herbicide glyphosate as a source of phosphorus, nitrogen, or carbon. We added goethite to a humus soil to manipula

41、te the soil's glyphosate sorption capacity. The addition of glyphosate generally either decreased microbial CO2 production or produced no effect. Additions of glyphosate, in combination with glucose and N, did not change the respiration rate in comparison with the same treatment but without glyphosate. In contrast, glyphosate additions combined with glucose and P decreased microbial growth, whereas the combination with goethite counteracted the negative