Organophosphorus derivatives for electronic devices

Abstract

International audienceThis review presents the main class of organophosphorus compounds (triaryl phosphines, phosphazenes, phospholes, phosphetes and diphosphacyclobutanes), which have been used in electronic devices (organic light-emitting diodes (OLEDs), organic photovoltaic cells (OPV cells), dye-sensitized solar cells (DSSCs), organic field-effect transistors (OFETs), and electrochromic cells)

A Guide for the Design of Functional Polyaromatic Organophosphorus Materials

“…Unlike 1 (QY=0.2), phospholes fused with thiophenes exhibit QYs up to 0.8 . On the other hand, phosphorus‐based gold complexes have demonstrated outstanding performances in light‐emitting diodes and remarkable QYs up to 0.75 . This is in stark contrast with 13 , which possesses a QY<0.01.…”

“…Moreover, shedding light on the high synthetic versatility of λ 3 ‐σ 3 phosphorus centers of phospholes triggered an extensive development of organophosphorus materials; λ 3 ‐σ 3 phosphorus centers possess a variety of selective post‐functionalization reactions that provide unique means to tailor the materials’ optoelectronic properties for practical applications. As a result, organophosphorus materials containing five‐membered phosphorus heterocycles have led to important breakthroughs in fields such as liquid crystals, OLEDs, solar cells, electrochromic materials, and sensors, just to name a few.…”

Dismantling the Hyperconjugation of π‐Conjugated Phosphorus Heterocycles

“…The development of architectures based on π‐extended phosphorus heterocycles is currently receiving a great deal of attention in the context of liquid crystals, sensors, OLEDs, solar cells, and biomarkers . Particular characteristics of the latter heteroles involve, in most of the cases, electron‐accepting properties and a wide array of accessible post‐functionalization reactions at the phosphorus center, which serve to tailor the optoelectronic properties of the π‐systems to specific applications . Probably the most exceptional feature of phosphorus heterocycles, particularly noted for five‐membered phosphorus rings, phospholes, is their stabilization by hyperconjugation, which stems from the overlap of the σ‐exocyclic phosphorus bond with the orbitals of the π‐fragment .…”

Blue Electrofluorescence Properties of Furan–Silole Ladder Pi-Conjugated Systems

“…Following the successful incorporation of thiophene oligomers and polymers in opto-electronic devices, [1][2][3] new derivatives featuring B [4,5], N [6,7], O [8,9], Si [10] or P [11][12][13][14][15][16][17][18][19] have been developed. In particular, siloles (silacyclopentadienes) found promising applications in the field of organic light emitting devices (OLEDs) [20][21][22][23].…”