- Compound containing carbazole unit and use thereof
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The invention discloses a compound containing a carbazole unit and a use thereof. The carbazole compound has a structure represented by formula (I): (img file='re-DDA0001591266690000011.TIF' wi='1229'he='1359'/), in the formula (I), R1 is a C1-C12 hydrocarbon group or a C1-C12 alkoxy group or a C4-C20 heterocyclic group, wherein a hetero-atom in the heterocyclic group is N or S or O; R2 is a C1-C12 hydrocarbon group; and R3 and R4 are the same or different aromatic hydrocarbon groups or heterocyclic aromatic hydrocarbon groups. The carbazole compound disclosed by the invention can be used asa hole transport material in perovskite solar cells, organic small molecule solar cells, electroluminescent devices and other photoelectric devices.
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Paragraph 0065; 0068; 0069
(2018/04/28)
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- Indoline compound and application thereof
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The invention discloses an indoline compound which has a structure as shown in formula (I), wherein in the formula (I), R1 is C1-C12 alkyl or C1-C12 alkoxy or C4-C20 heterocyclic radical, and heteroatom of the heterocyclic radical is N, S or O; and R2 is
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Paragraph 0050; 0053; 0054
(2018/04/28)
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- Multi-color electrochromism containing green color based on electrochemically polymerized star-shaped phenyl bithiophene
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A star-shaped thiophene derivative, namely PHBT, consisting of one central core of phenyl and three arms of bithiophene, was newly synthesized and characterized, in order to further investigate the relationship between the star-shaped monomer structure (c
- Dong, Yujie,Luo, Feifei,Chen, Lan,Yuan, Feiya,Hou, Yuejiao,Li, Weijun,Yan, Shuanma,Dai, Yuyu,Ouyang, Mi,Zhang, Cheng
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p. 12923 - 12928
(2018/05/23)
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- Insights into the triple self-condensation reaction of thiophene-based methyl ketones and related compounds
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The acid catalysed triple self-condensation of 1-thien-2-ylethanone (2-acetylthiophene) and five related compounds is presented. Tetrachlorosilane used as the Lewis acid produces dry hydrogen chloride which catalyzes the self-condensation process. Depending on the reaction conditions and the substitution of the carbonyl substrates, the reaction can proceed as a [2+2+2] cyclotrimerization towards C3-symmetric 1,3,5-trisubstituted benzenes, or as the single-type aldol condensation leading to 1,3-disubstituted (E)-β-methylchalcones. This is important for the design of new aromatic/olefinic compounds beyond the model structures. Synthesis of 4′-fluoro-3,5-di-(2-thienyl)biphenyl through a mixed-type aldol reaction using erbium triflate is discussed. Mechanistic rationale is provided.
- Andicsová-Eckstein, Anita,Végh, Daniel,Kruto?íková, Al?beta,Tokárová, Zita
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p. 124 - 139
(2018/06/29)
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- Synthesis and Electrochromic Properties of Star-Shaped Oligomers with Phenyl Cores
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A series of star-shaped conjugated oligomers, 1,3,5-tri(2′-thienyl) benzene (3TB), 1,3,5-tri(3′,4′-ethylenedioxythienyl) benzene (3EB), 1,3,5-tri[5′,2“-(3”,4“-ethylenedioxy-thienyl)-2′-thienyl] benzene (3ETB), and 1,3,5-tri[5′,2”-(3“,4”-ethylenedioxy-thie
- Zeng, Jinming,Zhang, Xiaoyuan,Zhu, Xiaoting,Liu, Ping
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supporting information
p. 2202 - 2206
(2017/09/11)
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- Oligothiophene derivative and its preparation method
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The invention relates to an oligothiophene derivative and a preparation method thereof. The preparation method of the oligothiophene derivative mainly comprises the following steps of: dissolving 3TB into dichloromethane, adding NBS (N-bromosuccinimide),
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Paragraph 0019
(2017/01/23)
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- Substituted triphenylamines as building blocks for star shaped organic electronic materials
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A versatile synthetic protocol toward a series of various substituted triphenylamine derivatives serving as building blocks for organic electronic materials was developed. Key steps during synthesis were either Ullmann condensations or nucleophilic aromatic substitutions giving rise to structural modification of triphenylamines and their electronic nature. In turn, these scaffolds were exemplarily attached to a dendritic tris(2-thienyl)benzene core affording star shaped organic semiconducting materials which were characterized regarding their photo-physical, electro-chemical and thermal properties. A strong influence of the substituent's nature on both photo-physical and morphological thin film characteristic of star shaped target compounds was observed. The applicability of these materials in organic electronic devices was demonstrated in an organic field effect transistor configuration yielding a hole mobility of nearly 10-3 cm2 V-1 s-1. The performance of the materials can be correlated to the substituents applied. This journal is
- Lumpi, Daniel,Holzer, Brigitte,Bintinger, Johannes,Horkel, Ernst,Waid, Simon,Wanzenb?ck, Heinz D.,Marchetti-Deschmann, Martina,Hametner, Christian,Bertagnolli, Emmerich,Kymissis, Ioannis,Fr?hlich, Johannes
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p. 1840 - 1851
(2015/03/18)
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- Estimating the shape and size of supramolecular assemblies by variable temperature diffusion ordered spectroscopy
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Reported is characterization of the self-assembly of π-conjugated oligomers, molecules studied recently in photovoltaic devices, using variable temperature diffusion ordered spectroscopy (VT-DOSY). Iterative fitting of diffusion coefficient versus tempera
- Schulze, Benjamin M.,Watkins, Davita L.,Zhang, Jing,Ghiviriga, Ion,Castellano, Ronald K.
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supporting information
p. 7932 - 7936
(2014/12/12)
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- Phenyl-1,3,5-trithienyl-diketopyrrolopyrrole: A molecular backbone potentially affording high efficiency for solution-processed small-molecule organic solar cells through judicious molecular design
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Finding new molecular backbones is necessary for further advances in solution-processed small-molecule organic solar cells (SM-OSCs). Increasing molecular π conjugation generally enhances the light-harvesting ability, and the resulting strong π-π-stacking interactions improve the charge-carrier transport ability; both increase the efficiency. In this study, we focus on the phenyl-1,3,5-trithienyl (3T-P) backbone because of its C3 symmetry, planarity, and particularly high conjugation between the three arms through the core phenyl unit. When the three arms were functionalized with diketopyrrolopyrrole (DPP) units to afford 3D-T-P, only modest efficiency was achieved (1.16 %). Introduction of 4,8-bis(2-(2-ethylhexylthienyl)) benzodithiophene (BDT) between the 3T-P and DPP units to give 3D-B-T-P enhanced the light-harvesting ability, and particularly improved the hole mobility by 1.5 orders of magnitude (5.91×10-2 versus 1.05×10 -3 cm2 V-1 s-1). When using PC71BM as the acceptor material, 3D-B-T-P gave the best power conversion efficiency (PCE) of 2.27 %, which is about 1.9 times higher than the best efficiency from 3D-T-P (≈1.16 %). The efficiency can be improved up to 3.60 % with 3 % (v/v) of 1,8-diiodooctane (DIO) as the cosolvent and thermal annealing at 100 °C for 10 min. This PCE is, to the best of our knowledge, the highest efficiency reported to date among the phenyl-1,3,5-based C3-symmetric molecules. Removing one DPP unit from 3D-T-P to form 2D-T-P, or from 3D-B-T-P to form 2D-B-T-P both decreased the light-harvesting ability and the hole mobility, thereby affording lower efficiency. Taken together, our results demonstrate that the planar phenyl-1,3,5-trithienyl-based C3-symmetric structure can be a promising backbone, and enhancing the conjugation of the 3D-T-P backbone can effectively improve the device performance.
- Zhang, Shanlin,Jiang, Bo,Zhan, Chuanlang,Huang, Jianhua,Zhang, Xin,Jia, Hui,Tang, Ailing,Chen, Lili,Yao, Jiannian
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p. 2407 - 2416
(2013/10/08)
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- The synthesis and properties of solution processable phenyl cored thiophene dendrimers
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In this paper we describe the convergent synthesis of a new class of phenyl cored thiophene dendrimers, which are promising candidates for use in organic semiconductor devices. We have prepared dendrimers with three and four dendrons around the core as we
- Mitchell, William J.,Kopidakis, Nikos,Rumbles, Garry,Ginley, David S.,Shaheen, Scan E.
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p. 4518 - 4528
(2007/10/03)
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- Giant extended π-conjugated dendrimers containing the 10,15-dihydro-5H-diindeno[1,2-a;1′,2′-c]fluorene chromophore: Synthesis, NMR behaviors, optical properties, and electroluminescence
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This paper reports the facile synthetic strategy of a series of novel π-conjugated dendrimers (G0 and G1) based on 10,15-dihydro-5H-diindeno [1,2-a;1′,2′-c]fluorene (truxene) in which the benzene cores are generated "in-situ" from acetyl aromatics by the
- Cao, Xiao-Yu,Liu, Xue-Hui,Zhou, Xing-Hua,Zhang, Yong,Jiang, Yang,Cao, Yong,Cui, Yu-Xin,Pei, Jian
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p. 6050 - 6058
(2007/10/03)
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