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Rehovot, Israel

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

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