Grinvald E.,Physics of Complex Systems |
Neeman L.,Physics of Complex Systems |
Bar-Elli O.,Physics of Complex Systems |
Ben-Zvi R.,Materials and Interfaces |
And 4 more authors.
Nano Letters | Year: 2015
Facile molecular self-assembly affords a new family of organic nanocrystals that, unintuitively, exhibit a significant nonlinear optical response (second harmonic generation, SHG) despite the relatively small molecular dipole moment of the constituent molecules. The nanocrystals are self-assembled in aqueous media from simple monosubstituted perylenediimide (PDI) molecular building blocks. Control over the crystal dimensions can be achieved via modification of the assembly conditions. The combination of a simple fabrication process with the ability to generate soluble SHG nanocrystals with tunable sizes may open new avenues in the area of organic SHG materials. © 2015 American Chemical Society. Source