30388-31-9Relevant academic research and scientific papers
Switching and tuning organic solid-state luminescence via a supramolecular approach
Anthony, Savarimuthu Philip,Varughese, Sunil,Draper, Sylvia M.
, p. 7500 - 7502 (2009)
Unusual intermolecular interactions of organic luminescent acid, 2-cyano-3(4-(diphenylamino)phenyl)acrylic acid (CDPA), with amines lead to the formation of supramolecular luminescence systems with switchable and tunable solid-state luminescence.
Synthesis, crystal structures and two-photon absorption properties of triphenylamine cyanoacetic acid derivative and its organooxotin complexes
Zhao, Xuesong,Liu, Jie,Wang, Hui,Zou, Yan,Li, Shengli,Zhang, Shengyi,Zhou, Hongping,Wu, Jieying,Tian, Yupeng
, p. 701 - 709 (2015)
Three novel organooxotin complexes (Z1, Z2 and Z3) were synthesized by reaction of L1 (2-cyano-3-(4-(diphenylamino)phenyl) acrylic acid) with n-Bu2SnO, Ph3Sn(OH) and nBu6Sn2O. The structures of the three complex
Effects of triphenyl phosphate as an inexpensive additive on the photovoltaic performance of dye-sensitized nanocrystalline TiO2 solar cells
Afrooz, Malihe,Dehghani, Hossein
, p. 50483 - 50493 (2015)
The effect mechanism of triphenyl phosphate (TPP) is studied as an effective and inexpensive additive in the electrolyte of dye-sensitized solar cells (DSSCs) performance. The N719- and TPA-sensitized devices with a modified electrolyte show high efficiencies of 7.04% and 2.73% under 100 mW cm-2 light illumination, respectively. The enhancement in Voc arises from increasing electron density in the conduction band (CB) of TiO2 that leads to a shift in the Fermi level (EF) and thereby a suppression in electron recombination occurs. Electrochemical and spectroscopic data exhibit slower electron recombination and indicates that TPP forms a charge transfer complex with iodine in the electrolyte. This complexation decreases the concentration of free triiodide and limits the electron recombination so that it improves Jsc. Furthermore, the results reveal that TPP is a suitable inexpensive alternative for 4-tert-butylpyridine (TBP) additive in the DSSCs. We replaced TBP with TPP in DSSC based on TPA dye and observed an 73% increase in η compared to the blank electrolyte (without additive). Also, we investigate the effects of substituents in the phosphate additive structure on the photovoltaic properties by comparing our findings with previous work and found that the aliphatic phosphate additives exhibit a better performance compared to aromatic phosphate additives in the DSSCs.
NOVEL ORGANIC COMPOUND AND ELECTROLUMINESCENT DEVICE COMPRISING SAME
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Paragraph 0085; 0130; 0132; 0139-0142, (2021/01/29)
The present invention relates to a novel compound and an electroluminescent device comprising the same. The compound of the present invention can improve the driving voltage, luminance efficiency, and lifetime properties of the electroluminescent device by being used as a luminescent material of the electroluminescent device and having excellent electron transfer properties, and can remarkably improve productivity.
D - D - π - A - type indole - triphenylamine the solar-sensitizing dye and its synthesis and use
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, (2017/10/11)
The invention discloses an indole-triphenylamine-arylmethylidenemalononitrile solar energy co-sensitization dye, a synthetic method and application thereof. The synthetic method comprises the following steps: adopting triphenylamine as the raw material, carrying out reaction on triphenylamine and POCl3 in a DMF solvent to compound and obtain an intermediate 4-(diphenyl amido) benzaldehyde; carrying out reaction on the 4-(diphenyl amido) benzaldehyde to obtain 4-bis (4-iodophenyl) aminobenzaldehyde; respectively carrying out reaction on the 4-bis (4-iodophenyl) aminobenzaldehyde and indole, 2-methylindole and 3-methylindole to obtain an indole-triphenylamine aldehyde derivative; respectively carrying out reaction on the indole-triphenylamine aldehyde derivative and cyanoacetic acid, malononitrile or 2-(3, 5, 5-trimethyl cyclohexene-2-octenylidene) malononitrile to obtain an indole-arylmethylidenemalononitrile-triphenylamine derivative. According to the synthetic method, the relevant optical property, photo-electro transition rate and co-sensitization efficiency of the product are primarily studied, and the foundation for developing the dye into a novel solar energy co-sensitization dye with excellent properties is laid.
With electrochemiluminescent nature of the triphenylamine carboxylic acid of the cuprous complex and method of preparing the same
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Paragraph 0034; 0035, (2017/04/11)
The invention discloses a triphenylamine-based carboxylic acid cuprous complex with an electrogenerated chemiluminescence property and a preparation method thereof. The triphenylamine-based carboxylic acid cuprous complex with the electrogenerated chemilu
Monocarboxylate transporter 1 inhibitors as potential anticancer agents
Gurrapu, Shirisha,Jonnalagadda, Sravan K.,Alam, Mohammad A.,Nelson, Grady L.,Sneve, Mary G.,Drewes, Lester R.,Mereddy, Venkatram R.
, p. 558 - 561 (2015/05/27)
Potent monocarboxylate transporter 1 inhibitors (MCT1) have been developed based on α-cyano-4-hydroxycinnamic acid template. Structure-activity relationship studies demonstrate that the introduction of p-N, N-dialkyl/diaryl, and o-methoxy groups into cyanocinnamic acid has maximal MCT1 inhibitory activity. Systemic toxicity studies in healthy ICR mice with few potent MCT1 inhibitors indicate normal body weight gains in treated animals. In vivo tumor growth inhibition studies in colorectal adenocarcinoma (WiDr cell line) in nude mice xenograft models establish that compound 27 exhibits single agent activity in inhibiting the tumor growth.
Effect of π-spacers on the photovoltaic properties of D–π–A based organic dyes
Sivanadanam, Jagadeeswari,Ganesan, Paramaguru,Madhumitha, Rajakumar,Nazeeruddin, Md. Khaja,Rajalingam, Renganathan
, p. 194 - 202 (2016/09/02)
Three new triphenylamine based D–π–π–A (TPC, TSC and TOC) dyes with different π-spacers have been synthesized and analysed their significance on the photophysical properties and photovoltaic applications. The synthesized dyes were characterized by NMR, ma
MM quadruple bonds supported by cyanoacrylate ligands. Extending photon harvesting into the near infrared and studies of the MLCT states
Brown-Xu, Samantha E.,Chisholm, Malcolm H.,Durr, Christopher B.,Lewis, Sharlene A.,Naseri, Vesal,Spilker, Thomas F.
, p. 2105 - 2116 (2013/05/22)
The compounds trans-M2(TiPB)2(L) 2 and trans-M2(TiPB)2(L′) 2 have been prepared from the reactions between M2(T iPB)4 (TiPB = 2,4,6-triisopropylbenzoate, M = Mo or W) and LH or L′H (～2 equiv.), respectively, where L = O 2CC(CN)CH-C6H4-NPh2 and L′ = O2CC(CN)CH-C4H3S-C6H 4-NPh2. These cyanoacrylate ligands promote intense M 2δ to L or L′ π*-transitions that span the range 550-1100 nm. The two molybdenum complexes have been characterized by single crystal X-ray studies that reveal the extensive L-M2-L or L′-M2-L′ M2δ-ligand π-conjugation. The new compounds have been characterized by electronic structure calculations employing density functional theory (DFT) and time-dependent-DFT, cyclic voltammetry, electronic absorption and steady state emission spectroscopy and femtosecond (fs) and nanosecond (ns) time resolved transient absorption (TA) and fs time-resolved infrared spectroscopy (TRIR). The latter allows the determination of the S1 states as 1MLCT that are delocalized over both L and L′. For molybdenum the T1 states are 3MoMoδδ* whereas for tungsten they are 3MLCT.
Triphenylamine-based organic dyes containing benzimidazole derivatives for dye-sensitized solar cells
Zhou, Linlei,Jia, Chunyang,Wan, Zhongquan,Li, Zi,Bai, Jingying,Zhang, Ligong,Zhang, Jiaqiang,Yao, Xiaojun
, p. 743 - 750,8 (2020/07/30)
The synthesis and application to dye-sensitized solar cells of two new triphenylamine-based organic dyes containing benzimidazole derivatives as secondary donors together with a simple triphenylamine derived dye for the purpose of comparison is reported. The photophysical and electrochemical properties of the dyes were investigated by UV-vis spectroscopy and cyclic voltammetry. The introduction of benzimidazole derivatives in the phenyl ring of the triphenylamine core increases the molar extinction coefficients and λmax because of the extension of the π-conjugation structures of the dyes. Overall conversion efficiencies of ～2.5% under full sunlight (AM 1.5G, 100 mW cm-2) irradiation were obtained for DSSCs based on these new dyes, under the same conditions, the reference dye and di-tetrabutylammonium cis-bis(isothiocyanato) bis(2,2′-bipyridyl-4, 4′-dicarboxylato) ruthenium(II) (N719) gave overall conversion efficiencies of 1.23% and 5.61%, respectively. Our findings demonstrate that the introduction of benzimidazole derivatives as secondary donors in triphenylamine-based dye can improve their photovoltaic performance compared to the unsubstituted reference dye in DSSCs.
