- Hole transport material containing isoindigo compound as well as preparation method and application thereof
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The hole transport material takes isoindigo-containing compound as a core, the alkyl chain is introduced to improve the solubility, different donor groups are introduced to regulate the energy level, and the hole transport capacity is improved. The synthesized hole transport and transmission material is low in cost and good in hole transport capacity, and has high application value in the field of solar cells. The hole transport material has good hole transport performance and good solubility, is applied to a perovskite solar cell as a hole transport layer, and improves the photoelectric conversion efficiency of the solar cell.
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Paragraph 0115; 0119; 0122
(2021/09/21)
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- Asymmetric push-pull small molecules with auxiliary electron-accepting unit for bulk heterojunction organic solar cells
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Two small molecular donors (TPA-DPP and TPA-DPP-MDN) were designed with asymmetric push-pull structure, namely, donor-acceptor (D-A) and donor-acceptor-acceptor (D-A-A) systems. They were synthesized and investigated by thermogravimetric analysis, UV–vis spectra, X-ray diffraction, density functional theory (DFT) calculation, electrochemical and the photovoltaic (PV) measurement. The D-A-A architecture (TPA-DPP-MDN) exhibited lower highest occupied molecular orbital (HOMO) of –5.18 eV, narrower optical band gap of 1.52 eV, better thermal stability and higher degree of ordered aggregation than these of the D-A system (TPA-DPP). TPA-DPP-MDN based PV device showed better performance with higher open-circuit voltage (VOC) and short-circuit current density (JSC) than these of TPA-DPP based PV devices due to the low-lying HOMO level and wide spectral absorption range of TPA-DPP-MDN.
- Chen, Ying,Yang, Duo,Liu, Wei,Tong, Junfeng,Yang, Chunyan,Zhang, Peng
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- Polycarbazole compd., manufacturing method thereof, and use thereof
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PROBLEM TO BE SOLVED: To provide a novel carbazole compound with a high T1, a production method thereof and a use thereof.SOLUTION: A carbazole compound represented by general formula (1) is used for any one or more layer of a light emitting layer, a hole transport layer and a hole injection layer of an organic EL element, where Arand Arindependently represent a 6-40C aryl group or a 3-40C heteroaryl group or the like.
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- For solution treated organic solar cell of low band gap containing ruthenium complex
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This invention relates to a class of ruthenium(II) bis(aryleneethynylene) complexes for use in bulk heterojunction (BHJ) solar cell devices, and the method of synthesizing thereof. This invention also relates to a BHJ solar cell device comprising the ruth
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Page/Page column 13
(2017/06/02)
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- Chemoselective amination of bromoiodobenzenes with diarylamines by palladium/Xantphos or ligand-free copper catalysts
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We report the chemoselective amination of bromoiodobenzenes with diarylamines by palladium/Xantphos or a ligand-free copper catalyst. The reactions by these two types of catalysts proceeded with a high chemoselectivity and afforded monobrominated triarylamines in good yields. These products are useful intermediates for the synthesis of unsymmetrical bistriarylamines.
- Kanazawa, Yoshinori,Yokota, Tomo,Ogasa, Hiroshi,Watanabe, Hirotaka,Hanakawa, Taisyun,Soga, Shinichi,Kawatsura, Motoi
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p. 1395 - 1402
(2015/02/19)
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- Organic light emitting host materials
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Polyphenylene compounds such as compounds represented by Formulas 1-28 may be used in electronic devices such as organic light-emitting devices. For example, the compounds may be used as host material in an emissive layer.
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Page/Page column 97; 98; 101; 102
(2015/11/09)
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- An electroluminescent compound and an electroluminescent device comprising the same
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The present invention relates to an organic light emitting compound employed in an organic electroluminescent device, the compound is represented by chemical formula 1, and an organic electroluminescent device having excellent light emitting properties of a driving voltage, luminance, a long lifespan, etc. is implemented when employing the compound as a phosphorescent host compound in a hole transport layer or a light emitting layer.COPYRIGHT KIPO 2016
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Paragraph 0164-0166; 0687-0690
(2016/10/07)
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- Hole Transport Materials with High Triplet Energy for Long Lifespan OLED and OLED Containing the Same
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According to the present invention, hole transport materials induce a substituent which turns an orientation angle to two phenylene groups of a biphenyldiamine partial structure, and an aryl group to two nitrogen atoms of the biphenyldiamine partial structure, thereby improving light emitting properties such as low driving voltage and high light emitting efficiency, and increasing thermal stability by raising rotational energy barrier of molecules and lifespan of a diode. The hole transport material is a biphenyldiamine derivative represented by chemical formula 1. Accordingly, the present invention can manufacture an organic light emitting diode (OLED) of high efficiency, low voltage, high brightness, and long lifespan by using the same.COPYRIGHT KIPO 2015
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Paragraph 0172-0175
(2016/12/01)
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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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- C-N cross-coupling reaction catalysed by reusable CuCr2O4 nanoparticles under ligand-free conditions: A highly efficient synthesis of triarylamines
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A convenient, efficient and ligand-free method for the C-N coupling reaction of anilines and aryl iodides was performed using CuCr2O4 nanoparticles. Copper chromite nanocatalyst improved the rate and facility of the synthesis of triarylamines. The heterogeneous catalyst was fully characterized by scanning electron microscopy, IR and X-ray diffraction techniques. Recyclability, excellent yields of products and short reaction times are the important advantages of this ligand-free procedure by using the CuCr2O4 nanoparticles. This journal is
- Safaei-Ghomi, Javad,Akbarzadeh, Zeinab,Khojastehbakht-Koopaei, Bahareh
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p. 28879 - 28884
(2015/04/14)
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- A convenient and efficient synthesis of triarylamine derivatives using CuI nanoparticles
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We report a simple and efficient method for the synthesis of triarylamine derivatives using copper iodide nanoparticles, 1,10-phenanthroline and potassium hydroxide. Copper iodide nanoparticles enhanced the rate and ease of reaction and exhibited a high influence in the efficient synthesis of various amine derivatives. The nanoparticles also increased the yields of products and decreased the reaction times in all cases. The heterogeneous mediator was fully characterized by scanning electron microscopy and X-ray diffraction techniques.
- Safaei-Ghomi, Javad,Akbarzadeh, Zeinab,Ziarati, Abolfazl
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p. 16385 - 16390
(2014/05/06)
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- ORGANIC DYE, DYE-SENSITIZED METAL OXIDE SEMICONDUCTOR ELECTRODE AND DYE-SENSITIZED SOLAR CELL
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An object of the present invention is to provide a dye sensitizer for a solar cell having stability and an excellent conversion efficiency. There is provided a dye sensitizer represented by the following general formula, to which a donor site (D) and an acceptor site (A) are bound via linkers (L1)n and (L2)n: (φ is an aromatic ring with or without heteroatom(s); D is a triphenylamine derivative, a carbazole derivative, a coumarine derivative or an indoline derivative; A is an organic residue having an acidic group; each of L1 and L2 is an optionally substituted divalent alkenyl group, aromatic group or heterocyclic group, and n represents an integer of 0 to 3).
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Page/Page column 31
(2013/03/26)
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- Diacetylene bridged triphenylamines as hole transport materials for solid state dye sensitized solar cells
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We have synthesized and characterized a series of triphenylamine-based hole-transport materials (HTMs), and studied their function in solid-state dye sensitized solar cells (ss-DSSCs). By increasing the electron-donating strength of functional groups (-H -Me -SMe -OMe) we have systematically shifted the oxidation potential and ensuing photocurrent generation and open-circuit voltage of the solar cells. Correlating the electronic properties of the HTM to the device operation highlights a significant energy offset required between the Dye-HTM highest occupied molecular orbital (HOMO) energy levels. From this study, it is apparent that precise control and tuning of the oxidation potential is a necessity, and usually not achieved with most HTMs developed to date for ss-DSSCs. To significantly increase the efficiency of solid-state DSSCs understanding these properties, and implementing dye-HTM combinations to minimize the required HOMO offset is of central importance.
- Planells, Miquel,Abate, Antonio,Hollman, Derek J.,Stranks, Samuel D.,Bharti, Vishal,Gaur, Jitender,Mohanty, Dibyajyoti,Chand, Suresh,Snaith, Henry J.,Robertson, Neil
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p. 6949 - 6960
(2013/07/26)
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- DYE COMPOUND AND DYE-SENSITIZED SOLAR CELL
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A dye compound is described, which is expressed by formula (I): wherein A1, A2 and A3 each independently represent a substituted or unsubstituted 1,4-phenylene or 2,5-thiophene group, and B1 and B2 each independently represent a substituted or unsubstituted aryl group. The dye compound is suitably used as a dye sensitizer in a dye sensitized solar cell (DSSC).
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Page/Page column 14-15
(2010/04/23)
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- Solution phase studies towards the synthesis of triarylamine oligomers using a germanium linker on a solid support
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In this letter, we describe the iterative solution phase synthesis of a triarylamine trimer as proof of concept towards the synthesis of oligomeric materials by solid-phase synthesis. Our model system utilises the stability of germanium linkers to nucleophilic conditions to develop efficient steps towards oligomer synthesis via (i) selective deprotection of tert-butyl-dimethyl-silyl ether (OTBDMS) functionality, (ii) conversion to reactive trifluoromethanesulfonate (triflate) functionality and (iii) Suzuki cross-coupling reactions.
- Anémian,Cupertino,Mackie,Yeates
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p. 6717 - 6721
(2007/10/03)
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