2016
DOI: 10.1039/c6tc02717b
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Spectroscopic characterization of charge carriers of the organic semiconductor quinacridone compared with pentacene during redox reactions

Abstract: The molecular-scale changes of the pigment quinacridone, a hydrogen-bonded organic semiconductor, are evaluated during redox reactions.

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Cited by 19 publications
(23 citation statements)
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“…[21] Usually onset potentials of oxidation andr eduction, [34] differential pulse voltammetric peak potentials, [20][21][22] or formal potentials E 0 derived from cyclic voltammetric peak potentials [33,34,49] are the basic information. [50] Moreover, aryl-substituted pentacenes [25] and indenofluorene analogues [51] (the latter includes S-heterocyclic moieties in the polycyclic ring system) show two oxidationp eaks in cyclic voltammetry. Rather,asingle voltammetric potentials can rate (v)w as commonly used in the experiments.…”
Section: Introductionmentioning
confidence: 99%
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“…[21] Usually onset potentials of oxidation andr eduction, [34] differential pulse voltammetric peak potentials, [20][21][22] or formal potentials E 0 derived from cyclic voltammetric peak potentials [33,34,49] are the basic information. [50] Moreover, aryl-substituted pentacenes [25] and indenofluorene analogues [51] (the latter includes S-heterocyclic moieties in the polycyclic ring system) show two oxidationp eaks in cyclic voltammetry. Rather,asingle voltammetric potentials can rate (v)w as commonly used in the experiments.…”
Section: Introductionmentioning
confidence: 99%
“…[20-22, 33, 34, 49] Although only one oxidation step for 1b hasb een mentioned,acouple of reports indicate as econd oxidationf or molecules based on or similart op arentp entacene 1a.U nsubstitutedp entacene 1a itself (deposited on an electrode as a solid) exhibited potential-dependent voltammetric and spectroscopic features, which were interpreted as indications of formation of either ad icationic dimer or ad ication. [50] Moreover, aryl-substituted pentacenes [25] and indenofluorene analogues [51] (the latter includes S-heterocyclic moieties in the polycyclic ring system) show two oxidationp eaks in cyclic voltammetry. 6,13-Diamino-substituted pentacenes 1d (R' and R'' indicate variousa lkyl and aryl groups) [52] show at wo-electron oxidation with pronounced potentiali nversion, as frequently found for electron transfers associated with considerable structural changes [53] and, consequently,i nner reorganization energies.…”
Section: Introductionmentioning
confidence: 99%
“…Table 1 shows the orientation‐dependent IE of several organic semiconductor films in the literature, determined both experimentally and theoretically. [ 58–60,64–82 ] The IE of random‐oriented molecules in films is also included for compounds such as the N , N ′‐bis(naphthalen‐1‐yl)‐ N , N ′‐bis(phenyl)benzidine (NPB) prepared by vacuum thermal evaporation. Therefore, the IE measurement of organic semiconductor film by UPS can serve as a complementary method to evidence the molecular orientation measured by other techniques such as the VASE.…”
Section: Molecular Orientation and Energy Levels In Organic Semicondumentioning
confidence: 99%
“…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%