Fabrication of organic nanocrystals for electronics and photonics

Abstract

We have presented a simple technique for the fabrication of nanocrystals of organic molecules and polymers and have shown that it is possible, using the liquid‐phase technique, to fabricate organic nanocrystals ranging in size from 10 nm to 1 μm by manipulating the preparative conditions. In particular, nanocrystals of poly(4‐BCMU) ranging from 20 nm to 350 nm were prepared by controlling the preparation conditions. The main advantages of the liquid‐phase technique are the practicality and suitability of the technique for a wide range of materials. The fabrication of organic nanocrystals, though at a very early stage, seems a promising approach for producing low‐dimensional organic materials and, like inorganic nanocrystals, another important objective for future study would be to incorporate organic nanocrystals into a variety of inorganic and organic media. It is hoped that extensive work will be done on organic nanocrystals to evaluate their potential for electronics and photonics.

Low‐Dimensional Nanomaterials Based on Small Organic Molecules: Preparation and Optoelectronic Properties

“…[85,102,103] It provides a very simple and versatile way to prepare organic nanoparticle dispersions. The method involves a rapid mixing of a small amount of concentrated stock solution of the target compound dissolved in a good solvent with excess of a poor solvent.…”

Preparation and Characterization of N-4-Nitrophenyl-L-prolinol Nanocrystals in Sol–Gel Matrices

“…Such effects are not expected in organic crystals where Frenkel excitons are mainly localized on one molecule. This could explain why the preparation and study of organic aggregates was practically unexplored (2,3). In addition, despite the very wide range of optical properties of organic nanocrystals, they have attracted little attention because of the difficulties associated with their structural characterization.…”

Enhancing the Performance of Polymer Light‐Emitting Diodes by Integrating Self‐Assembled Organic Nanowires

“…[5] Advances in nanotechnology have enabled the fabrication of nanoscale devices and the detailed investigation of their properties and functions. [6][7][8] Each functional layer of an organic electroluminescent (EL) diode, such as the hole-injection layer, emission layer, and electron-transport layer, has a thickness of several tens of nanometers. It is therefore imperative to control the arrangement of each functional layer at the nanometer length scale within the device structure to optimize the performance of the OLEDs/PLEDs.…”