نتایج جستجو برای: perylene

تعداد نتایج: 1329  

Journal: :Chemical communications 2012
Joseph K Gallaher Emma J Aitken Robert A Keyzers Justin M Hodgkiss

Controlled aggregation of perylene bisimides in multiple modes has been achieved via symmetric substitution with peptides. Using optical probes of aggregation, the balance of hydrophobic and electrostatic forces are found to play a key role in directing self assembly and are exploited via solvent, pH, and specific extrinsic ion effects.

Journal: :Chemical communications 2008
Zachary B Hill Deanna B Rodovsky Janelle M Leger Glenn P Bartholomew

We report the synthesis of a soluble perylene-based small molecule for use as an n-type emissive material for organic optoelectronic device applications, and demonstrate the material in a light-emitting electrochemical cell configuration.

2017
Gonzalo Abellán Pablo Ares Stefan Wild Edurne Nuin Christian Neiss David Rodriguez-San Miguel Pilar Segovia Carlos Gibaja Enrique G Michel Andreas Görling Frank Hauke Julio Gómez-Herrero Andreas Hirsch Félix Zamora

Antimonene, a novel group 15 two-dimensional material, is functionalized with a tailormade perylene bisimide through strong van der Waals interactions. The functionalization process leads to a significant quenching of the perylene fluorescence, and surpasses that observed for either graphene or black phosphorus, thus allowing straightforward characterization of the flakes by scanning Raman micr...

2015
Riccardo Frisenda Loredana Parlato Mario Barra Herre S.J. van der Zant Antonio Cassinese

In this letter, we report the single-molecule conductance properties of a cyano-functionalized perylene-diimide derivative (PDI8-CN2) investigated with gold nano-electrodes. This molecule is of large interest for the fabrication of high-performance and air-stable n-type organic field-effect transistors. Low-bias experiments performed on mechanically controllable break junctions reveal the prese...

Journal: :Chemical communications 2013
Kai Sun Yan Li Wenxin Fu

Laminated nanotapes were fabricated via conformation specific self-assembly of two N-annulated perylene derivatives (NPDs). The assemblies in solvated states were characterized using cryogenic transmission electron microscopy (cryo-TEM), and their nanostructures were modulated by the synergistic interactions of π-π stacking and hydrogen bonds.

Journal: :Materials advances 2021

We investigate how apparent slight changes to the chemical structure of amino acid-functionalised perylene bisimides (PBIs) affect self-assembled aggregates formed and their resulting physical optical properties.

Journal: :Chemical communications 2015
Xuejun Zhan Ji Zhang Sheng Tang Yuxuan Lin Min Zhao Jie Yang Hao-Li Zhang Qian Peng Gui Yu Zhen Li

Three pyrene fused PDI derivatives have been obtained, in which totally different properties were observed when adopting different fusing types. For bilaterally benzannulated PDIs, through spin-coating, bottom-contact OFET devices exhibited a p-type mobility up to 1.13 cm(2) V(-1) s(-1), with an on/off ratio of 10(8) in air.

Journal: :Chemical communications 2017
Wenxuan Mao Junji Zhang Xin Li Chen Li He Tian

By a facile strategy, we obtained three pure regioisomers of multiaryl coronene bisimide (CBI) derivatives via IBr-mediated annelation and subsequent Suzuki coupling reactions with high yields. A series of aromatic groups with different electron properties were efficiently introduced to obtain functional CBI derivatives under mild conditions with good yields. Furthermore, the annelation mechani...

Journal: :The journal of physical chemistry letters 2015
Christopher Menelaou Jeroen ter Schiphorst Amol M Kendhale Patrick Parkinson Michael G Debije Albertus P H J Schenning Laura M Herz

Materials showing rapid intramolecular energy transfer and polarization switching are of interest for both their fundamental photophysics and potential for use in real-world applications. Here, we report two donor-acceptor-donor triad dyes based on perylene-bisimide subunits, with the long axis of the donors arranged either parallel or perpendicular to that of the central acceptor. We observe r...

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