Liquid‐Crystalline Rigid‐Core Semiconductor Oligothiophenes: Influence of Molecular Structure on Phase Behaviour and Thin‐Film Properties

Melucci, Manuela; Favaretto, Laura; Bettini, Christian; Gazzano, Massimo; Camaioni, Nadia; Maccagnani, Piera; Ostoja, P.; Monari, Magda; Barbarella, Giovanna

doi:10.1002/chem.200701368

Cited by 70 publications

(59 citation statements)

References 43 publications

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“…145 Polarized optical microscopy (POM) and differential scanning calorimetry (DSC) analyses revealed highly ordered smectic mesophases for co-oligomers 2.71 (n ) 0) and 2.72 (n ) 0). Derivatives 2.71 (n ) 1) and 2.73 showed some degree of phase transition, whereas no LC behavior was observed for 2.72 (n ) 1).…”

Section: Chart 212mentioning

confidence: 99%

Functional Oligothiophenes: Molecular Design for Multidimensional Nanoarchitectures and Their Applications

2009

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Amaresh Mishra (right) received his Ph.D. degree in 2000 from the Sambalpur University, India, under the coguidance of Prof. G. B. Behera and Prof. R. K. Behera, working on dye-surfactant interactions in microheterogeneous media. He started his postdoctoral research career in 1999 at the University of South Florida, Tampa, and subsequently at the University of Akron, Ohio, working with Prof. G. R. Newkome, where he gained knowledge in the area of supramolecular and dendrimer chemistry. Later, he joined the Tata Institute of Fundamental Research, Mumbai, in 2002 as a Visiting Fellow working with Prof. N. Periasamy, where he was involved in the synthesis and photophysical studies of organic light emitting materials. In 2005, he joined in the group of Prof. Peter Ba ¨uerle, University of Ulm, Germany, as an Alexander von Humboldt Fellow. His present research interests are centered on chemistry of functional oligothiophenes, donor-acceptor-based conjugated dyes, and metal complexes toward applications in solar energy conversion and molecular electronic and photonic devices. Chang-Qi Ma (left) received his bachelor's degree in chemistry from Beijing Normal University in 1998. In 2003 he obtained his Ph.D. degree at the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences in Beijing with Professor B.-W. Zhang. After that he was a postdoctoral research assistant at Heriot-Watt University in Edinburgh, U.K., with Dr. G. Cooke, until he joined the research group of Prof. P. Ba ¨uerle at the University of Ulm in 2004 as an Alexander von Humboldt fellow, where he is currently a research associate. His main research interests focus on the design and synthesis of novel π-conjugated organic materials for the application in organic electronics, e.g. organic solar cells.Peter Ba ¨uerle (center) received his Ph.D. in organic chemistry from University of Stuttgart (Germany, 1985) working with Prof. F. Effenberger. After a postdoctoral year at MIT, Boston, Massachusetts, in the group of Prof. M. S. Wrighton, he carried out independent research at the University of Stuttgart and received his habilitation (1994). After being Professor of Organic Chemistry at the University of Wu ¨rzburg (Germany, 1994-95), he became Director of the Institute for Organic Chemistry II and Advanced Materials at the University of Ulm (Germany, since 1996). Current research interests of the group include development of novel organic semiconducting and conducting materials, in particular, conjugated poly-and oligothiophenes. Synthetic strategies and new reactions for their functionalization, structure-property relationships, self-assembling properties, and applications in electronic devices, in particular organic solar cells, are investigated. Results have been published in about 200 peer-reviewed scientific papers, 3 book chapters, and 7 patents. For his work in the field of plastic electronics he was awarded with the Rene ´Descartes Prize of the European Union (2000). Guest Professorships at the University of Osaka (Japan, 2002), U...

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Section: Chart 212mentioning

confidence: 99%

Functional Oligothiophenes: Molecular Design for Multidimensional Nanoarchitectures and Their Applications

2009

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“…Dithieno[3,2-b:2',3'-d]thiophene (DTT) 1, a donor [13] with a planar core, had been extensively used in the construction of oligomeric [14][15][16][17][18][19][20][21][22][23] and polymeric [24][25][26] semiconductors.…”

Section: Introductionmentioning

confidence: 99%

Mixed-stack architecture and solvatomorphism of trimeric perfluoro-ortho-phenylene mercury complexes with dithieno[3,2-b:2′,3′-d]thiophene

Castañeda

Khrustalev

Fonari

et al. 2015

Journal of Molecular Structure

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“…[7][8][9] In this work, we investigate novel rigid-core oligothiophenes, having a dithienothiophene inner core (DTTS) where the central sulfur bears one or two oxygen atoms (S-oxide, DTTSO, and S,S-dioxide, DTTSO2, Scheme 1). We envisage that the functionalization of the p-core can be further exploited to tune the optoelectronic properties of the oligomers.…”

Section: Introductionmentioning

confidence: 99%

Influence of the oxidation level on the electronic, morphological and charge transport properties of novel dithienothiophene S-oxide and S,S-dioxide inner core oligomers

et al. 2010

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Novel inner-core dithienothiophene S-oxide and S,S-dioxide oligomers were designed and synthesized. The controlled oxidation at the central sulfur of the dithienothiophene core allows the combined tailoring of the HOMO-LUMO energies, thermal properties, and thin film morphology. Electrochemical measurements indicate that a marked decrease in electron affinity is obtained by addition of the first oxygen at the central sulfur, while addition of the second oxygen induces only minor effects on both the oxidation and reduction potentials. The newly synthesized materials exhibit high solubility in common organic solvents together with good film forming properties when deposited on SiO 2 by solution-based techniques. Similar hole field effect transistor (FET) mobility for solutiondeposited and thermally-evaporated films together with FET performances independent of film morphology and molecular orientation call for non-conventional charge transport mechanisms.

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Liquid‐Crystalline Rigid‐Core Semiconductor Oligothiophenes: Influence of Molecular Structure on Phase Behaviour and Thin‐Film Properties

Cited by 70 publications

References 43 publications

Functional Oligothiophenes: Molecular Design for Multidimensional Nanoarchitectures and Their Applications

Functional Oligothiophenes: Molecular Design for Multidimensional Nanoarchitectures and Their Applications

Mixed-stack architecture and solvatomorphism of trimeric perfluoro-ortho-phenylene mercury complexes with dithieno[3,2-b:2′,3′-d]thiophene

Influence of the oxidation level on the electronic, morphological and charge transport properties of novel dithienothiophene S-oxide and S,S-dioxide inner core oligomers

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