Rylene and Related Diimides for Organic Electronics

Abstract

Organic electron-transporting materials are essential for the fabrication of organic p-n junctions, photovoltaic cells, n-channel field-effect transistors, and complementary logic circuits. Rylene diimides are a robust, versatile class of polycyclic aromatic electron-transport materials with excellent thermal and oxidative stability, high electron affinities, and, in many cases, high electron mobilities; they are, therefore, promising candidates for a variety of organic electronics applications. In this review, recent developments in the area of high-electron-mobility diimides based on rylenes and related aromatic cores, particularly perylene- and naphthalene-diimide-based small molecules and polymers, for application in high-performance organic field-effect transistors and photovoltaic cells are summarized and analyzed.

Diketopyrrolopyrrole‐Based Conjugated Polymer Entailing Triethylene Glycols as Side Chains with High Thin‐Film Charge Mobility without Post‐Treatments

“…In this respect, various electron acceptors and donors have been devised and incorporated into the polymer backbones to tune their highest occupied molecular orbital (HOMO)/lowest unoccupied molecular orbital (LUMO) levels and backbone conformations as well as their molecular arrangement and packing 4, 10, 18. Thereby, thiophene, bithiophene, and the selenium analogs are widely employed as electron donors, whereas imide and diimide‐containing heterocyclic molecules such as diketopyrrolopyrrole (DPP), isoindigo, naphthalenediimide, and Pechmann dyes are chosen as electron acceptors 19, 20, 21, 22, 23, 24, 25, 26, 27…”

High‐Performance Non‐Fullerene Organic Solar Cells Based on a Selenium‐Containing Polymer Donor and a Twisted Perylene Bisimide Acceptor

“…Non‐fullerene acceptors have attracted tremendous interest due to their potential use as alternatives to the ubiquitous fullerene derivatives in bulk heterojunction (BHJ) organic solar cells 1, 2, 3, 4, 5, 6. Extensive studies have been carried out to develop polymeric and small molecule acceptors over the past decade 7, 8, 9, 10, 11, 12, 13, 14.…”

Roll‐Coated Fabrication of Fullerene‐Free Organic Solar Cells with Improved Stability

“…Fullerene‐free OSCs (FF‐OSCs)9, 14, 15, 16, 17, 18, 19, 20 are composed of a p‐type semiconducting polymer or small molecule as an electron donor and an n‐type semiconducting nonfullerene polymer or small molecule as an electron acceptor. Compared with fullerene acceptors, nonfullerene acceptors present some advantages, such as broad and strong absorption, adjustable LUMO energy levels, and long‐term stability.…”