Electrochemically Induced Synthesis of Triphenylamine-based Polyhydrazones

Data, Przemysław; Pander, Piotr; Zassowski, Paweł; Mimaitė, Viktorija; Karoń, Krzysztof; Łapkowski, Mieczysław; Gražulevičius, Juozas V.; Ślepski, Paweł; Darowicki, Kazimierz

doi:10.1016/j.electacta.2017.01.132

Cited by 31 publications

(34 citation statements)

References 64 publications

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“…[34] The oxidation peak observed at~1.2 V may be due to the oxidation of N-substituted carbazole in 2CBA-TPY and 2TPY-CBZ [34] whereas, the potential range between 0.8-1.5 V in 2TPA-TPY and 2TPY-TPA could be related to the oxidation of triphenylamine unit which depends on the substituents attached to the phenyl ring of triphenylamine unit. [35] The energy of the HOMO (E HOMO ) calculated from Equation (1) is…”

Section: Photophysical Studiesmentioning

confidence: 99%

Butterfly‐Shaped Thiophene‐Pyridine Hybrids: Green Electroluminescence and Large Third‐Order Optical Nonlinearities

et al. 2020

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A set of four symmetric, butterfly‐shaped 4‐(4‐(decyloxy)phenyl)‐2,6‐di(thiophen‐2‐yl)pyridine (TPY) derivatives 2TPA‐TPY (TPY center and triphenylamine end groups), 2CBZ‐TPY (TPY center and N‐ethyl carbazole end groups), 2TPY‐TPA (triphenylamine center and TPY at the periphery) and 2TPY‐CBZ (N‐ethyl carbazole center and TPY at the periphery) was synthesized. The molecules show reverse saturable absorption (RSA) which is consistent with two‐photon absorption (2PA) associated with excited‐state absorption (ESA) when excited using a 532 nm laser beam. The molecules 2TPA‐TPY and 2TPY‐TPA possess extremely low limiting thresholds of 1.73 and 2.68 J cm−2, respectively. An organic light‐emitting diode (OLED) fabricated from 2TPA‐TPY exhibits green emission with a maximum luminance of 207 cd m−2, a current efficiency (ηCE) of 1.51cd A−1, a maximum power efficiency (ηPmax) of 0.46 lm W−1 and an external quantum efficiency (ηEQE) of 0.48 % at 100 cd m−2.

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Section: Photophysical Studiesmentioning

confidence: 99%

Butterfly‐Shaped Thiophene‐Pyridine Hybrids: Green Electroluminescence and Large Third‐Order Optical Nonlinearities

et al. 2020

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“…Cleaning procedure 24 NOTE: The typical spectroelectrochemical cell consists of a platinum mesh(wire) or ITO working electrode (WE), Ag/AgCl or Ag electrode as a reference electrode (RE) and platinum coil or wire as an auxiliary electrode (AE) ( Figure 1 ). All electrodes must be cleaned before use.…”

Section: Protocolmentioning

confidence: 99%

Raman and IR Spectroelectrochemical Methods as Tools to Analyze Conjugated Organic Compounds

Blacha–Grzechnik

Karoń

Data

2018

JoVE

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In the presented work, two spectroelectrochemical techniques are discussed as tools for the analysis of the structural changes occurring in the molecule on the vibrational level of energy. Raman and IR spectroelectrochemistry can be used for advanced characterization of the structural changes in the organic electroactive compounds. Here, the step-by-step analysis by means of Raman and IR spectroelectrochemistry is shown. Raman and IR spectroelectrochemical techniques provide complementary information about structural changes occurring during an electrochemical process, i.e. allows for the investigation of redox processes and their products. The examples of IR and Raman spectroelectrochemical analysis are presented, in which the products of the redox reactions, both in solution and solid state, are identified.

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“…Coupling electrochemical and spectroelectrochemical methods allows for easy, accurate, and reliable determination of the degree of oxidation or reduction of conjugated compounds and their degradation potential, which is crucial for stability 23 24 25 26 27 28 . Ultraviolet-visible and near-infrared (UV-Vis-NIR) spectroscopy coupled with electrochemistry can characterize the fundamental chromatic properties of all new conjugated compounds, such as the changing of the absorption band during doping 18 19 20 21 22 23 24 25 26 27 28 29 30 .…”

Section: Introductionmentioning

confidence: 99%

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

Pluczyk¹,

Vasylieva²,

Data³

2018

JoVE

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Cyclic voltammetry (CV) is a technique used in the analysis of organic compounds. When this technique is combined with electron paramagnetic resonance (EPR) or ultraviolet-visible and near-infrared (UV-Vis-NIR) spectroscopies, we obtain useful information such as electron affinity, ionization potential, band-gap energies, the type of charge carriers, and degradation information that can be used to synthesize stable organic electronic devices. In this study, we present electrochemical and spectroelectrochemical methods to analyze the processes occurring in active layers of an organic device as well as the generated charge carriers.

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Electrochemically Induced Synthesis of Triphenylamine-based Polyhydrazones

Cited by 31 publications

References 64 publications

Butterfly‐Shaped Thiophene‐Pyridine Hybrids: Green Electroluminescence and Large Third‐Order Optical Nonlinearities

Butterfly‐Shaped Thiophene‐Pyridine Hybrids: Green Electroluminescence and Large Third‐Order Optical Nonlinearities

Raman and IR Spectroelectrochemical Methods as Tools to Analyze Conjugated Organic Compounds

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds

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