Charge-Carrier Transport in Thin Films of π-Conjugated Thiopheno-Azomethines

Isik, Dilek; Santato, Clara; Barik, Satyananda; Skene, W. G.

doi:10.1016/j.orgel.2012.08.018

Cited by 42 publications

(21 citation statements)

References 47 publications

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“…10,11 Despite the aforementioned advantages, azomethines have received little attention as conjugated materials in organic electronics, such as field-effect transistors (OFET), electrochromic devices (ECD) and photovoltaics (OPV). [12][13][14][15][16] In 2010, the first azomethine-based OPV devices were demonstrated, where poly(azomethine)s were used as electrondonating materials. 14 While some progress was made using poly(azomethine)s for photovoltaic applications, their efficiencies remained relatively low.…”

Section: Introductionmentioning

confidence: 99%

Device Performance of Small-Molecule Azomethine-Based Bulk Heterojunction Solar Cells

et al. 2015

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Recently, we demonstrated that small-molecule azomethines are promising candidates as electron donating materials for organic photovoltaic devices. Azomethines can be prepared via well-known condensation chemistry with water being the sole by-product. Here we present a record power conversion efficiency for azomethine-based small-molecule OPV of 2.2%. To understand the underlying physics limiting device performance, TPA-TBT-TPA devices were characterized using a range of spectroscopic and electro-optical techniques. Light intensity dependent current-density measurement showed the presence of non-geminate charge recombination, which is most likely the result of poor charge mobility. In addition, transient absorption measurements showed a relatively short life time of the exciton (120 ps). However, due to the very fast charge dissociation (<300 fs) charge separation is relatively efficient. This knowledge presents a guideline for preparing subsequent generations of compounds with improved device performance.

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Section: Introductionmentioning

confidence: 99%

Device Performance of Small-Molecule Azomethine-Based Bulk Heterojunction Solar Cells

et al. 2015

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“…These compounds are very well recognized and due to their unusual properties, they are used in a wide range of application areas including organic and bioinorganic chemistry as common non-enzymatic/enzymatic intermediates, coordination and supramolecular chemistry as common ligands as well as biomedical applications and material sciences [4][5][6][7][8][9][10][11] . They have also been reported to show antibacterial [12][13][14][15][16][17] , antifungal [14][15][16] and antitumoral [18][19] activities.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, antimicrobial activity studies and molecular property predictions of schiff bases derived from ortho-vanillin

Berk¹,

Ertaş²,

Biltekin³

2017

actapharm

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“…PAM has drawn much more attention due to the potential applications in electronics, optoelectronics and photonics [14][15][16]. Skene et al have reported pioneering work on conjugated thiopheno-azomethines for using in organic electronic applications [17,18]. Kaya devices [19,20].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and electrochromic properties of epoxy materials containing triphenylamine units

et al. 2015

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A series of novel aromatic epoxy resins are prepared from the epichlorohydrin (ECH) and di(4-hydroxybenzylideneamino) triphenylamine (DHB-TPA) monomers, which are synthesized from different triphenylamine (TPA)-containing diamines and phydroxybenzaldehyde. FT-IR, 1 H NMR and UV-Vis absorption spectra are employed to characterize the chemical structures of the polymers. All the polymers are amorphous, soluble in a variety of common organic solvents. The thermal properties of the polymers are investigated by thermogravimetric analysis (TGA) indicating good thermal stabilities compared with conventional epoxy resins on behalf of the introduction of aromatic TPA groups. All the polymers exhibit excellent reversibility of electrochromic characteristics by continuous cyclic scans between 0 and 2.0 V with the color changing from green to blue. The polymers also display photoelectrical response. The above properties prove that the series of polymers exhibit high thermal stability, excellent reversibility of electrochromic characteristics and photoelectric behaviours, which can be prospective candidates as electrochromic materials and photoelectrical conversion materials.

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Charge-Carrier Transport in Thin Films of π-Conjugated Thiopheno-Azomethines

Cited by 42 publications

References 47 publications

Device Performance of Small-Molecule Azomethine-Based Bulk Heterojunction Solar Cells

Device Performance of Small-Molecule Azomethine-Based Bulk Heterojunction Solar Cells

Synthesis, antimicrobial activity studies and molecular property predictions of schiff bases derived from ortho-vanillin

Synthesis and electrochromic properties of epoxy materials containing triphenylamine units

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