DEVELOPMENT OF LONG DISTANCE CARRIER-TRANSPORT SYSTEMS BASED ON THE SYNTHESIS OF EXTENSIVELY CONJUGATED SULFUR-CONTAINING HETEROARONIATICS
DEVELOPMENT OF LONG DISTANCE CARRIER-TRANSPORT SYSTEMS BASED ON THE SYNTHESIS OF EXTENSIVELY CONJUGATED SULFUR-CONTAINING HETEROARONIATICS
批准号:
12440180
负责人:
ASO Yoshio
金额:
$7.68万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2000
资助国家:
日本
项目状态:
已结题
起止时间:
2000 至 2002
中文摘要
1. 利用完全被β阻断的性噻吩在末端α-位置的选择性迭代偶联,开发了一系列长达96聚合物的超长寡硫吩。它们的光谱测量结果清楚地表明,它们与非取代的低硫噻吩一样具有高度共轭性,并且在扩展共轭到96聚时没有收敛极限,这比先前推测的多硫噻吩的收敛极限要长得多。富勒烯连接的四分之一和八邻噻吩具有三脚架刚性锚作为高效的sam基光伏电池的组成部分被合成。已经证明,三脚架锚在金电极上制备组织良好的SAM中起着重要作用,与单臂锚相比,它显著增强了光电流的产生。根据吸收光子的数量,估计最高的量子产率为35%以上。显著的量子产率表明,低聚生物烯长链有利于光电流的产生和电荷输运。在光伏电池中加入了低聚噻吩/富勒烯二偶体(nT-C60),其入射光子-电流效率高达9.7%。高光电流的产生是由于二偶体的光电诱导电荷分离和良好的空穴传输寡硫吩网络。A1/16T-C60/Au器件在456nm处的单色功率转换效率为0.4%.4。在有机电致发光器件中合成了α或β端含芘的三噻吩和四噻吩作为新型发射材料。利用Al/超薄LiF双层阴极制备了这些化合物的高效单层电致发光器件。其中一种器件的最大亮度为1860 cd/m^2,发光效率为0.15 lm/W,是单有机层EL器件中性能最高的器件。少
英文摘要
1. A series of extraordinarily long oligothiophenes up to the 96-mer has been developed by taking advantage of selective iterative couplings of the completely β-blocked sexithiophene at the terminal α-positions. Their spectroscopic measurements evidently indicate that they are highly conjugated like non-substituted oligothiophene and exhibit no convergent limit for the extended conjugation up to the 96-mer yet, which is much longer than that previously speculated for polythiophenes.2. [60]Fullerene-linked quarter- and octi-thiophenes bearing a tripodal rigid anchor have been synthesized as components of highly efficient SAM-based photovoltaic cells. It has been demonstrated that the tripodal anchor plays an important role in preparing a well-organized SAM on a gold electrode, leading to marked enhancement of the photocurrent generation as compared to the reference system with a one-armed anchor. The highest quantum yield was estimated based on the number of absorbed photons to be 35% f … More or the octithiophene-based cell. The remarkably large quantum yield indicates that the long oligotbiophene chain can facilitate the generation and charge transport of photocurrent.3. Oligothiophene/fullerene dyads (nT-C60) are incorporated in photovoltaic cells, which demonstrate relatively high incident photon-to-current efficiency up to 9.7 %. The generation of high photocurrents is ascribable to the ready photoinduced charge separation of the dyads and a good oligothiophene network for hole transport. The monochromatic power conversion efficiency of the A1/16T-C60/Au device measured at 456 nm is 0.4%.4. Ter- and quater-thiophenes bearing pyrenes at the terminal α or β positions have been synthesized as novel emitting materials in organic electroluminescence devices. The efficient single layer EL devices of these compounds are fabricated by use of an Al/ultrathin LiF bilayer cathode. One of them exhibits a maximum luminance of 1860 cd/m^2 and a luminous efficiency of 0.15 lm/W, which are of the highest performance class among single-organic-layer EL devices. Less
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K.Takimiya: "Synthetic Procedure for Various Selenium-Containing Electron Donors of the Bis(Ethylenedithio)tetrathiafulvalene (BEDT-TTF) Type"Journal of the Organic Chemistry. 67・12. 4218-4227 (2002)
K.Takimiya:“双(乙撑二硫)四硫富瓦烯(BEDT-TTF)型的各种含硒电子供体的合成方法”有机化学杂志67・12 (2002)。
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安蘇芳雄: "ナノスケールオリゴチオフェンの合成と物性:導電性ポリマーモデルから分子エレクトロニクス材料へ"有機合成化学協会誌. 60・1. 52-61 (2002)
麻生芳夫:“纳米级低聚噻吩的合成和物理性质:从导电聚合物模型到分子电子材料”有机合成化学学会杂志60・1(2002)。
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D.Hirayama: "Large Photocurrent Generation of Gold Electrodes Modified with [60]Fullerene-Linked Oligothiophenes Bearing a Tripodal Rigid Anchor"Journal of the American Chemical Society. 124・4. 532-533 (2002)
D. Hirayama:“带有三足刚性锚的[60]富勒烯连接的寡噻吩修饰的金电极的大光电流生成”美国化学会杂志124・4(2002)。
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K.Inouchi: "Oligo(octithienylene-diethynylene)s as Unprecedentedly Long Conjugated Nanomolecules"Organic Letters. 4・15. 2533-2536 (2002)
K.Inouchi:“Oligo(辛噻烯基-二乙炔基)作为前所未有的长共轭纳米分子”有机快报 4・15(2002)。
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M.Fujitsuka: "Photoinduced Charge Separation and Recombination Processes in Fine Particles of Oligothiophene-C_<60>Dyad Molecules"The Journal of Physical Chemistry B. 105・41. 9930-9934 (2001)
M. Fujitsuka:“低聚噻吩-C_<60>二元分子细粒中的光致电荷分离和重组过程”物理化学杂志 B. 105・41(2001)。
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共 48 条
DEVELOPMENT OF ELECTRONIC-AND PHOTO-FUNCTIONAL DEVICE MATERIALS VIA SYNTHESIS OF EXTENSIVELY CONJUGATED MOLECULES BEARING REDOX SYSTEMS
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批准号:10640523
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.05万
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财政年份:1998
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负责人:ASO Yoshio
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依托单位:
Development of Functional Materials Based on Ene-Yne Oligomers
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批准号:07640723
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.41万
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财政年份:1995
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负责人:ASO Yoshio
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依托单位:
海外基金