Control over size, shape, and photonics of self-assembled organic nanocrystals

Chen Shahar; Yaron Tidhar; Yunmin Jung; Haim Weissman; Sidney R. Cohen; Ronit Bitton; Iddo Pinkas; Gilad Haran; Boris Rybtchinski

doi:10.3762/bjoc.17.5

Control over size, shape, and photonics of self-assembled organic nanocrystals

Chen Shahar, Yaron Tidhar, Yunmin Jung, Haim Weissman, Sidney R. Cohen, Ronit Bitton, Iddo Pinkas, Gilad Haran, Boris Rybtchinski^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The facile fabrication of free-floating organic nanocrystals (ONCs) was achieved via the kinetically controlled self-assembly of simple perylene diimide building blocks in aqueous medium. The ONCs have a thin rectangular shape, with an aspect ratio that is controlled by the content of the organic cosolvent (THF). The nanocrystals were characterized in solution by cryogenic transmission electron microscopy (cryo-TEM) and small-angle X-ray scattering. The ONCs retain their structure upon drying, as was evidenced by TEM and atom force microscopy. Photophysical studies, including femtosecond transient absorption spectroscopy, revealed a distinct influence of the ONC morphology on their photonic properties (excitation energy transfer was observed only in the high-aspect ONCs). Convenient control over the structure and function of organic nanocrystals can enhance their utility in new and developed technologies.

Original language	English
Pages (from-to)	42-51
Number of pages	10
Journal	Beilstein Journal of Organic Chemistry
Volume	17
DOIs	https://doi.org/10.3762/bjoc.17.5
Publication status	Published - 6 Jan 2021

Funding

This work was supported by grants from the Israel Science Foundation, Minerva Foundation, Schmidt Minerva Center for Supramolecular Architectures, and the Helen and Martin Kimmel Center for Molecular Design.

All Science Journal Classification (ASJC) codes

Organic Chemistry

Access to Document

10.3762/bjoc.17.5Licence: CC BY

Cite this

@article{b313bc6e647b461eb6f87054a2592d02,

title = "Control over size, shape, and photonics of self-assembled organic nanocrystals",

abstract = "The facile fabrication of free-floating organic nanocrystals (ONCs) was achieved via the kinetically controlled self-assembly of simple perylene diimide building blocks in aqueous medium. The ONCs have a thin rectangular shape, with an aspect ratio that is controlled by the content of the organic cosolvent (THF). The nanocrystals were characterized in solution by cryogenic transmission electron microscopy (cryo-TEM) and small-angle X-ray scattering. The ONCs retain their structure upon drying, as was evidenced by TEM and atom force microscopy. Photophysical studies, including femtosecond transient absorption spectroscopy, revealed a distinct influence of the ONC morphology on their photonic properties (excitation energy transfer was observed only in the high-aspect ONCs). Convenient control over the structure and function of organic nanocrystals can enhance their utility in new and developed technologies.",

author = "Chen Shahar and Yaron Tidhar and Yunmin Jung and Haim Weissman and Cohen, {Sidney R.} and Ronit Bitton and Iddo Pinkas and Gilad Haran and Boris Rybtchinski",

year = "2021",

month = jan,

day = "6",

doi = "10.3762/bjoc.17.5",

language = "English",

volume = "17",

pages = "42--51",

journal = "Beilstein Journal of Organic Chemistry",

issn = "1860-5397",

publisher = "Beilstein-Institut Zur Forderung der Chemischen Wissenschaften",

}

TY - JOUR

T1 - Control over size, shape, and photonics of self-assembled organic nanocrystals

AU - Shahar, Chen

AU - Tidhar, Yaron

AU - Jung, Yunmin

AU - Weissman, Haim

AU - Cohen, Sidney R.

AU - Bitton, Ronit

AU - Pinkas, Iddo

AU - Haran, Gilad

AU - Rybtchinski, Boris

PY - 2021/1/6

Y1 - 2021/1/6

N2 - The facile fabrication of free-floating organic nanocrystals (ONCs) was achieved via the kinetically controlled self-assembly of simple perylene diimide building blocks in aqueous medium. The ONCs have a thin rectangular shape, with an aspect ratio that is controlled by the content of the organic cosolvent (THF). The nanocrystals were characterized in solution by cryogenic transmission electron microscopy (cryo-TEM) and small-angle X-ray scattering. The ONCs retain their structure upon drying, as was evidenced by TEM and atom force microscopy. Photophysical studies, including femtosecond transient absorption spectroscopy, revealed a distinct influence of the ONC morphology on their photonic properties (excitation energy transfer was observed only in the high-aspect ONCs). Convenient control over the structure and function of organic nanocrystals can enhance their utility in new and developed technologies.

AB - The facile fabrication of free-floating organic nanocrystals (ONCs) was achieved via the kinetically controlled self-assembly of simple perylene diimide building blocks in aqueous medium. The ONCs have a thin rectangular shape, with an aspect ratio that is controlled by the content of the organic cosolvent (THF). The nanocrystals were characterized in solution by cryogenic transmission electron microscopy (cryo-TEM) and small-angle X-ray scattering. The ONCs retain their structure upon drying, as was evidenced by TEM and atom force microscopy. Photophysical studies, including femtosecond transient absorption spectroscopy, revealed a distinct influence of the ONC morphology on their photonic properties (excitation energy transfer was observed only in the high-aspect ONCs). Convenient control over the structure and function of organic nanocrystals can enhance their utility in new and developed technologies.

U2 - 10.3762/bjoc.17.5

DO - 10.3762/bjoc.17.5

M3 - Article

SN - 1860-5397

VL - 17

SP - 42

EP - 51

JO - Beilstein Journal of Organic Chemistry

JF - Beilstein Journal of Organic Chemistry

ER -

Control over size, shape, and photonics of self-assembled organic nanocrystals

Abstract

Funding

All Science Journal Classification (ASJC) codes

Access to Document

Fingerprint

Cite this