Results 11 to 20 of about 3,082 (195)

Aligning self-assembled perylene bisimides in a magnetic field [PDF]

Chemical Communications, 2018
Directional dependent photoresponsive perylene bisimide thin films can be made by aligning and drying under a magnetic field. This can be monitored by NMR and small angle neutron scattering and assessed by imaging and electrochemical techniques.
Emily R. Draper, Matthew Wallace, Dirk Honecker, Dave J. Adams   +3 more
openaire   +12 more sources

An In-Situ Reaction Route to Molecular Level Dispersed Bisimide and ZnO Nanorod Hybrids with Efficient Photo-Induced Charge Transfer

Nanoscale Research Letters, 2021
As an important photoconductive hybrid material, perylene/ZnO has attracted tremendous attention for photovoltaic-related applications, but generally faces a great challenge to design molecular level dispersed perylenes/ZnO nanohybrids due to easy phase ...
Chunzheng Lv, Lirong He, Jiahong Tang, Feng Yang, Chuhong Zhang   +4 more
doaj   +1 more source

Fluorofluorescent Perylene Bisimides [PDF]

Synlett, 2018
Perfluorinated liquids can exhibit immiscibility with organic solvents and water, and provide orthogonal opportunities in chemistry. Examples of emissive dyes that display only fluorous phase solubility are limited, despite the many potential applications.
Yoshinaga, Kosuke, Swager, Timothy M
openaire   +3 more sources

Switch of dimensionality of exciton diffusion in aggregates [PDF]

EPJ Web of Conferences, 2019
The ultrafast exciton dynamics in J-aggregates of a perylene bisimide dye is investigated for temperatures down to 77 K revealing at low temperatures a decrease of the exciton mobility and a change in the dimensionality.
Wolter Steffen, Würthner Frank, Kühn Oliver, Lochbrunner Stefan   +3 more
doaj   +1 more source

Steering the multiexciton generation in slip-stacked perylene dye array via exciton coupling

Nature Communications, 2022
Understanding structure-property relationship of dye arrays is of great importance for designing organic photonic and photovoltaic materials. Here, authors present a slip-stacked perylene bisimide array as a model system to investigate singlet fission ...
Yongseok Hong, Maximilian Rudolf, Munnyon Kim, Juno Kim, Tim Schembri, Ana-Maria Krause, Kazutaka Shoyama, David Bialas, Merle I. S. Röhr, Taiha Joo, Hyungjun Kim, Dongho Kim, Frank Würthner   +12 more
doaj   +1 more source

Energy transfer in supramolecular calix[4]arene—Perylene bisimide dye light harvesting building blocks: Resolving loss processes with simultaneous target analysis

Journal of Photochemistry and Photobiology, 2022
By the application of simultaneous target analysis of multiple femtosecond transient absorption data sets we have identified two loss channels within multi-chromophoric light harvesting arrays.
Ivo H.M. van Stokkum, Catharina Wohlmuth, Frank Würthner, René M. Williams   +3 more
doaj   +1 more source

Preferential molecular recognition of heterochiral guests within a cyclophane receptor

Nature Communications, 2023
The design of synthetic supramolecular receptors capable of enantioselective molecular recognition is challenging. Here the authors report a perylene bisimide-based receptor that forms heterochiral host-guest complexes upon aromatic guests encapsulation;
Manuel Weh, Kazutaka Shoyama, Frank Würthner   +2 more
doaj   +1 more source

Perylene tetracarboxylic bisimide decorated g-C3N4 with enhanced photocatalytic activity

Cailiao gongcheng, 2022
A water-soluble perylene bisimide derivative, N, N'-di(2-succinic acid)-perylene-3, 4, 9, 10-tetracarboxylic bisimide (PASP) was synthesized by using 3, 4, 9, 10-perylenetetracarboxylic dianhydride and L-aspartic acid as starting materials. The PASP were
ZHAO Weifeng, HAO Ning, ZHANG Gai, QIAN Huijin, MA Aijie, ZHOU Hongwei, CHEN Weixing   +6 more
doaj   +1 more source

Anomalous deep-red luminescence of perylene black analogues with strong π-π interactions

Nature Communications, 2023
Perylene bisimide dyes are high-performance pigments that have red, maroon or black colors, but with typically only weak fluorescence in the solid state.
Ningning Tang, Jiadong Zhou, Liangxuan Wang, Matthias Stolte, Guojing Xie, Xinbo Wen, Linlin Liu, Frank Würthner, Johannes Gierschner, Zengqi Xie   +9 more
doaj   +1 more source

Coronene Bisimide as a Visible-Light-Mediated Triplet-Triplet Energy Transfer Catalyst. [PDF]

Chemistry
Coronene bisimide (CBI) with its efficient intersystem crossing was used as a visible‐light‐absorbing photosensitizer. Different reactions, including cycloadditions and oxidations, were demonstrated via triplet‐energy transfer from CBI. Abstract Photosensitization has emerged as a versatile tool to facilitate access to excited states under mild ...
Sukumaran DP, Würthner F.
europepmc   +2 more sources