Xian Ruilian Modern Electronic Chemicals Co.

China

Xian Ruilian Modern Electronic Chemicals Co.

China

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Wei Y.,Shaanxi Normal University | Wu Z.,Shaanxi Normal University | An Z.,Shaanxi Normal University | An Z.,Xi'an Modern Chemistry Research Institute | And 3 more authors.
Chinese Journal of Chemistry | Year: 2014

Approach to highly efficient dye-sensitized solar cells (DSSCs) by co-sensitization of organic dyes, AZ6+AZ5 with co-adsorbent chenodeoxycholic acid (CDCA) is presented. The power conversion efficiencies (PCEs) of 8.55% and 8.31% are obtained from DSSCs co-sensitized by AZ6 (0.3 mmol/L)+AZ5 (0.1 mmol/L) with CDCA concentration of 5 and 20 mmol/L in one step cocktail, respectively. The latter shows high stability in a period of 653 h under ambient conditions. Copyright © 2014 SIOC, CAS, Shanghai & WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Zhu S.,Shaanxi Normal University | An Z.,Shaanxi Normal University | An Z.,Xi'an Modern Chemistry Research Institute | Chen X.,Shaanxi Normal University | And 2 more authors.
Dyes and Pigments | Year: 2015

A series of cyclic thiourea functionalized dyes containing binary π-linkers were synthesized and applied in the dye-sensitized solar cells. The only difference of these dyes is that one segment of the binary π-linkers is thiophene, n-hexylthiophene, thienothiophene, 3,4-ethylenedioxythiophene, and benzene, respectively. Among them, the dyes incorporating electron-rich thienothiophene or 3,4-ethylenedioxythiophene exhibit the broader absorption bands and higher molar extinction coefficients in the visible region, which can not only enhance the light-harvesting ability but also improve the short-circuit current density; on the other hand, the dyes bearing bulky n-hexylthiophene or 3,4-ethylenedioxythiophene can effectively suppress the intermolecular π-π aggregation and electron recombination owing to larger steric hindrance, which is beneficial to increase the open-circuit voltage. © 2015 Elsevier Ltd. All rights reserved.


Zhu S.,Shaanxi Normal University | An Z.,Shaanxi Normal University | An Z.,Xi'an Modern Chemistry Research Institute | Chen X.,Shaanxi Normal University | And 2 more authors.
RSC Advances | Year: 2014

The modification of π-linkers represents a viable strategy to improve the performance of organic dye in dye-sensitized solar cells (DSSCs). On the basis of the π-linker modification, four cyclic thiourea functionalized dyes (AZ260, AZ261, AZ262, and AZ263) were synthesized and their effects on the short-circuit current density (Jsc) and open-circuit voltage (Voc) were investigated. The results showed that AZ261 bearing an n-hexyl chain on the π-linker generated higher Jsc (16.02 mA cm-2) and Voc (739.4 mV) than AZ6 without a substituent on the bithiophene (Jsc = 15.89 mA cm-2, Voc = 729.2 mV, PCE = 7.20%), and a higher PCE of 7.42% was obtained from AZ261. Furthermore, insertion of a double-bond into the π-linker (AZ263) yielded the highest Jsc (17.83 mA cm-2) with a somewhat lower Voc (719.2 mV), and delivered the highest PCE up to 8.24%. In addition, the function of mesoporous spherical TiO2 on the photoanodes were also systematically examined and proven to be beneficial in increasing the Jsc. This journal is © the Partner Organisations 2014.


Miao Z.C.,Xijing University | Wang Y.W.,Xian Ruilian Modern Electronic Chemicals Co. | Zhang X.,Xijing University | Zhang L.,Xijing University | And 2 more authors.
Advanced Materials Research | Year: 2013

An important liquid crystal intermediate of 4'-Bromoethynyl-4-pentyl-biphenyl was synthesized by bromo-reaction using N-bromosuccinimide as brominating agent, 4-Ethynyl-4'- pentyl-biphenyl as raw material, benzoyl peroxide (BPO) as catalyst and carbon tetrachloride (CCl4) as reaction solvent. The effects of reaction variables were systematically optimized to achieve product with yield as high as possible. Under the optimal synthesis condition, where the temperature was 80°C, the mol ratio between 4-Ethynyl-4'- pentyl-biphenyl and NBS was 1:2, the weight rate of BPO to 4-Ethynyl-4'-pentyl-biphenyl was 2.5%, and the reaction time was 8 h, the product attained the best yield of 93.1%. © (2013) Trans Tech Publications, Switzerland.


Zhang Y.M.,Xijing University | Wang Y.W.,Xian Ruilian Modern Electronic Chemicals Co. | Zhang M.,Xijing University | Liu J.F.,Xijing University | And 2 more authors.
Advanced Materials Research | Year: 2013

The liquid crystal material with trifluoromethyl substitutent is a very important liquid crystal monomer to combine mixture in the application of display area. In this paper, a kind of liquid crystal material with trifluoromethyl substitutent was synthesized by traditional method of Sonogashira coupling reaction, the reaction mechanism and reaction conditions were then obtained. In addition, the synthesized compound was characterized by FT-IR and 1H-NMR to confirm the consistent structure with target compound. © (2013) Trans Tech Publications, Switzerland.


Sun J.,Xian Ruilian Modern Electronic Chemicals Co. | Zhang Y.-X.,Xian Ruilian Modern Electronic Chemicals Co. | Xi M.,Xian Ruilian Modern Electronic Chemicals Co. | Xue Z.,Xian Ruilian Modern Electronic Chemicals Co. | And 2 more authors.
Faguang Xuebao/Chinese Journal of Luminescence | Year: 2012

Three iridium (III) containing imidazo [1,2-a] pyridine complexes (PIPy) 2Ir(acac), (4'-MPIPy) 2Ir(acac), (BIPy) 2Ir(acac) were synthesized based on reaction of iridium trichloride hydrate, 2-Biphenyl-4-yl-imidazo [1,2-a] pyridine with acetylacetone. Doping multiplayer OLEDs were respectively fabricated based on (BIPy) 2Ir(acac) with electron transporting ability. The doping device showed strong saturated green electrophosphorescent emission, the emission peak wavelength 516 nm and brightness of 18000 cd/m 2, current efficiency of 26.7 cd/A with Commission International de L'Eclairage (CIE) coordinates of (0.32, 0.60). This is the first report on new green phosphorescent material based on Ir(III) complex.


Li Y.,Xi'an Modern Chemistry Research Institute | Tang T.,Xian Ruilian Modern Electronic Chemicals Co. | Lian P.,Xi'an Modern Chemistry Research Institute | Luo Y.,Xi'an Modern Chemistry Research Institute | And 5 more authors.
Chinese Journal of Organic Chemistry | Year: 2012

Using 3,5-dimethyl-4-aminopyrazole as primary substance, l,4-diamino-3,6-dinitropyrazolo[4,3-c]pyrazole (LLM-119) was synthesized by six steps of diazotisation, intramolecular cyclic condensation, nitration, oxidation, decarboxylation nitration and N-amination. The structures of intermediates and target compound were confirmed by means of IR, 1 H NMR, 13 C NMR and elemental analysis. The post-treatment method of 4-diazonium-3,5-dimethylpyrazole salt was improved, the yield was increased from 77.0% to 86.1% because of using the freezing crystallization method instead of extractive method, which could avoid the use of organic reagent and shorten operation process. The mechanism of N-amination reaction was discussed in order to analyze the reason of low-yield theoretically. Using differential scanning calorimetry (DSC) and thermogravimetric (TG) as thermal analysis methods, the thermal performance of LLM-119 was studied with thermal decomposition peak temperature of 232.05 °C and the results showed that LLM-119 had preferable thermal stability. The structure of LLM-119 was also estimated by a B3LYP method on 6-31G(d,p) basis set in order that its steady geometric configuration and bond order were obtained. The vibrational frequencies, IR spectra and thermodynamics properties in different temperatures of the system were obtained on the basis of vibrational analysis, the relations of the effects of temperatures on thermodynamics properties were also obtained. The density of LLM-119 calculated through the Monte-Carlo method was 1.85 g/cm 3, which approached with the experiment value, and the predicted detonation velocity was 8733.94 m/s by the formula of Kamlet. © 2012 Chinese Chemical Society & SIOC, CAS.


Sun J.,Xian Ruilian Modern Electronic Chemicals Co. | Zhang Y.-X.,Xian Ruilian Modern Electronic Chemicals Co. | Zhao W.-H.,Xian Ruilian Modern Electronic Chemicals Co. | Zhang H.-K.,Xian Ruilian Modern Electronic Chemicals Co. | And 2 more authors.
Faguang Xuebao/Chinese Journal of Luminescence | Year: 2014

Based on a new framework 7-(9H-carbazol-9-yl)-N, N-diphenyl-9, 9'-spirobi[fluoren]-2-amine (CzFA) bipolar host material, the phosphorescent organic light-emitting diodes(PhOLEDs) were fabricated, and the electroluminescence properties of the devices were investigated. The red PhOLEDs doped with iridium (III) bis [2-methyldibenzo-(f, h)quinoxaline](acetylacetonate) (Ir(MDQ)2(acac)) show excellent electroluminescence properties, the maximum current efficiency is 27.8 cd/A, and the maximum power efficiency is 21.8 lm/W, which is almost 1.6 times higher than the device with CBP as host material(13.7 lm/W). The bipolar host material composed of carbazole fluorene and 2-amine substituent plays an important role for the performances improvement of the phosphorescent device.


Zhaoheng D.,Xian Ruilian Modern Electronic Chemicals Co. | Qun C.,Xi'an Jiaotong University | Xiaowei W.,Xian Ruilian Modern Electronic Chemicals Co. | Qianfeng L.,Xian Ruilian Modern Electronic Chemicals Co. | Zhenqi Z.,Xian Ruilian Modern Electronic Chemicals Co.
Liquid Crystals | Year: 2013

Trans-alkyl cyclohexane formic acid phenol ester compounds are synthesised by reaction of trans-cyclohexane formic acid and phenols. This process also produces many harmful cis-alkyl cyclohexane formic acid phenol ester compounds that are harmful to the environment. Using p-toluenesulphonic acid as the catalyst in this experiment, these cis compounds were transformed to their trans form. The yields of trans-alkyl cyclohexane formic acid phenol ester compounds were more than 70%, which was significantly higher when compared to the yields of 40-60% obtained using the control method. The effects of catalyst, reaction time and reaction temperature on cis-trans transformation were investigated. The possible mechanism of cis-trans transformation has been discussed in this report. © 2013 Copyright Taylor & Francis.


Sun J.,XiAn Ruilian Modern Electronic Chemicals Co. | Zhang Y.,XiAn Ruilian Modern Electronic Chemicals Co. | Zhang H.,XiAn Ruilian Modern Electronic Chemicals Co. | Su Z.,CAS Changchun Institute of Optics and Fine Mechanics and Physics | And 5 more authors.
ECS Journal of Solid State Science and Technology | Year: 2014

Highly efficient green phosphorescent organic light-emitting diodes (PHOLEDs) are achieved by using a three emitting layers structure in which the interlayer composes a blend of a hole- and an electron-transporting materials as the co-host. Both the efficiency and operational lifetime of the devices are improved with such a three emitting layers structure. The optimized device shows a maximum current efficiency and luminance of 65.8 cd/A and 127435 cd/m 2, respectively, which are nearly two folds over the conventional structure device. The three emitting layers structure improves the charge carriers injection and transport balance and confinement in the emitting layers, which lead to increasing charge carriers recombination probability and decreasing exciton annihilation by the hole transporting and electron transporting materials. Such factors are critical to improve the efficiency and operational lifetime of the green PHOLEDs. © 2014 The Electrochemical Society.

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