Conjugated polymers containing electron-deficient main chains and electron-rich pendant groups: Synthesis and application to electroluminescence

Wang, Kun‐Li; Leung, M.‐k.; Hsieh, Li-Ga; Chang, Chin-Chuan; Lee, Kueir‐Rarn; Wu, Chun-Lung; Jiang, Jyh‐Chiang; Tseng, Chieh-Yu; Wang, Hui-Tang

doi:10.1016/j.orgel.2011.03.020

Cited by 15 publications

(2 citation statements)

References 42 publications

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“…It is seen that the electronic characteristics of the polymers are tuned by the insertion of the TPA–Py bipolar unit in polymer chains through the TPA or Py subunit. This feature has also been observed for PFs containing a bipolar unit consisting of 1,2,4‐triazole and TPA …”

Section: Resultssupporting

confidence: 59%

“…The last few years have seen several examples in the literature of PFs containing such bipolar units. Three research groups have reported PFs bearing bipolar units that consist of electron‐deficient 1,2,4‐triazole and electron‐rich triphenylamine . In addition, PFs with bipolar units that consist of 1,2,4‐triazole acceptor and carbazole donor have also been reported .…”

Section: Introductionmentioning

confidence: 99%

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Optical and electrochemical properties of polyfluorenes with pyridine–triphenylamine bipolar unit

Sarigiannis¹,

Spiliopoulos²

2012

Polymer International

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Two new polyfluorenes were synthesized by Suzuki coupling polymerization, and their photophysical and electrochemical properties were studied. Both polymers contained the bipolar unit 4‐(2,6‐diphenylpyridin‐4‐yl)phenyl‐diphenylamine consisting of pyridine (Py) and triphenylamine (TPA) subunits. The bipolar unit was linked to the polymer chain via TPA or Py subunit, which affected the properties of the polymers. The polymers showed a weak intramolecular charge transfer character. They showed emission at 466 nm in solution and at 512‐538 nm in thin film. Their emission could be tuned by protonation and N‐alkylation of Py. Cyclic voltammetry experiments showed a quasi‐reversible oxidation process for both polymers. Their highest occupied molecular orbital levels were estimated at − 5.13 and − 5.21 eV. © 2012 Society of Chemical Industry

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Section: Resultssupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Optical and electrochemical properties of polyfluorenes with pyridine–triphenylamine bipolar unit

Sarigiannis¹,

Spiliopoulos²

2012

Polymer International

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Cross Conjugated Organometallic Polymers Exhibiting Ultrafast Excitation Energy Channeling: Drastic Effect of the Connectivity

Juvenal

Karsenti

et al. 2018

Macro Chemistry & Physics

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A polymer composed of 2,6‐diethynylanthraquinone diimine (AQI) and trans‐bis(tributylphosphine)platinum(II), [Pt], flanked by one tetraphenylpalladium(II)porphyrin (TPPPd) and one para‐nitrobenzene (C6H4NO2) is prepared (P1: M n = 57000, M w = 124500, Đ = 2.18, DP = 52.5) and is studied by time‐resolved emission spectroscopy and fs transient absorption spectroscopy (fs‐TAS). A model polymer (AQI(C6H4NO2)2‐[Pt]) n is used for comparison (P2: M n = 88200, M w = 188700, Đ = 2.14, DP = 111). Taking advantage of the dynamics of the excited states of [Pt] and TPPPd and those obtained for P1 and P2, it is shown that the excitation energy absorbed by the central polymer chain, (AQI‐[Pt]) n , channels this energy very efficiently, to the pendent TPPPd with a rate of energy transfer, k ET(S1), larger than 2.3 × 1010 s−1 for an energy transfer 1(AQI‐[Pt])* → TPPPd for P1 at 298 K based on the decrease of the fluorescence lifetime of the (AQI‐[Pt]) n chain in P1 compared to P2. This rate is more accurately estimated by fs‐TAS and is found to be 1.8 × 1011 s−1. This rate is ultrafast and is due to a large contribution of the Dexter mechanism across the imine bridge (CN).

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Investigation of the spectral, optical and surface morphology properties of theN,N′-Dipentyl-3,4,9,10-perylenedicarboximide small molecule for optoelectronic applications

Gündüz

2015

Polym. Adv. Technol.

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Investigation of the spectral, optical and surface morphology properties of the N,N′-Dipentyl-3,4,9,10-perylenedicarboximide small molecule for optoelectronic applications † Bayram Gündüz* The spectral and optical properties of the solutions of the N,N′-Dipentyl-3,4,9,10-perylenedicarboximide (PTCDI-C5) small molecule for different molarities were investigated in detail. The significant spectral parameters such as molar/mass extinction coefficients, absorption coefficient, electric dipole line strength, and oscillator strength of the PTCDI-C5 molecule were calculated. The absorption bands of PTCDI-C5 show vibronic structures with seven peaks at 2.08, 2.35, 2.53, 2.70, 2.86, 3.32, and 3.86 eV, respectively. The electronic spectra of the PTCDI-C5 can be characterized by two basic regions as visible and Soret band. Effects of the molarities on the significant many optical parameters were investigated in detail. The direct and indirect allowed optical band gaps of the PTCDI-C5 decrease with increasing molarity. Then, surface morphology properties were investigated and calculated roughness parameters of the PTCDI-C5 film. Finally, we discussed for optoelectronic applications of these parameters, and this study was compared with the similar and related studies in the literature.

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Conjugated polymers containing electron-deficient main chains and electron-rich pendant groups: Synthesis and application to electroluminescence

Cited by 15 publications

References 42 publications

Optical and electrochemical properties of polyfluorenes with pyridine–triphenylamine bipolar unit

Optical and electrochemical properties of polyfluorenes with pyridine–triphenylamine bipolar unit

Cross Conjugated Organometallic Polymers Exhibiting Ultrafast Excitation Energy Channeling: Drastic Effect of the Connectivity

Investigation of the spectral, optical and surface morphology properties of theN,N′-Dipentyl-3,4,9,10-perylenedicarboximide small molecule for optoelectronic applications

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