Spiers Memorial Lecture : Organic electronics: an organic materials perspective

Abstract

This Introductory Lecture is intended to provide a background to Faraday Discussion 174: "Organic Photonics and Electronics" and will consist of a chronological, subjective review of organic electronics. Starting with "ancient history" (1888) and history (1950-present), the article will take us to the present. The principal developments involved the processes of charge carrier generation and charge transport in molecular solids, starting with insulators (photoconductors) and moving to metals, to semiconductors and ending with the most popular semiconductor devices, such as organic light-emitting diodes (OLEDs), organic field effect transistors (OFETs) and organic photovoltaics (OPVs). The presentation will be from an organic chemistry/materials point of view.

Perylene, Oligorylenes, and Aza-Analogs

“…Perylene has a total of 20 π electrons and would be classified as antiaromatic if considering only the Huckel rule. From perylene's reactivity and 1 H NMR spectroscopy, one can clearly see that perylene is, in fact, aromatic ( 1 H NMR, shifts around 7−8 ppm; reactivity, undergoes electrophilic aromatic substitution). Perylene can be viewed as two fused naphthalene units that have partial connection of their π-systems.…”

“…In the current age of computers and microprocessors, the development of faster, cheaper, and more efficient electrical components is of paramount importance in advancing to the next stage in technology. Carbon is predicted to play a central role in the electronics of tomorrow. , As attested by the 2010 Nobel Prize in chemistry, graphene and organic electronic substances are viewed as key fields to developing better and cheaper electronic components. − Although thin films of graphene can be reliably formed on the surface of a material by vapor deposition, the production of micro/nanographene, and nanographene ribbons remains a challenge. − Graphene can be thought of as a highly conducting polymer. Smaller sections of graphene can have a range of properties from conducting to insulating, depending on the size and arrangement of the fused hydrocarbon.…”

“…Carbon is predicted to play a central role in the electronics of tomorrow. 1,2 As attested by the 2010 Nobel Prize in chemistry, graphene and organic electronic substances are viewed as key fields to developing better and cheaper electronic components. 3−5 Although thin films of graphene can be reliably formed on the surface of a material by vapor deposition, the production of micro/nanographene, and nanographene ribbons remains a challenge.…”

An organic transistor for detecting the oxidation of an organic sulfur compound at a solid–liquid interface and its chemical sensing applications

“…OFETs are electronic devices made of solution-processable organic semiconductive materials. 7–10 The OFETs possessing inherent amplification abilities show switching profiles by applying a gate voltage, and thus the transistor characteristics can be used as sensor signals upon detecting stimuli. 11,12 Among device structures, an extended-gate structure that isolates a sensing portion from the operation part ( i.e.…”