O'Reilly logo

Liquid Crystals Beyond Displays: Chemistry, Physics, and Applications by Quan Li

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 9

Semiconducting Applications of Polymerizable Liquid Crystals

Mary O'Neill and Stephen M. Kelly

Department of Physics and Chemistry, University of Hull, UK

9.1 Introduction

Since the first demonstration of organic light-emitting diodes (OLEDs) based on conjugated small organics and main-chain polymers [1, 2], interest in the field of organic electronics has expanded enormously with applications in solar cells, plastic electronics as well as displays. Organic photovoltaics (OPVs) are being developed as low-cost, large-area, solar cells; organic field-effect transistors (OFETs) with performance comparable to amorphous silicon devices are expected to be used in flexible, or throwaway electronic applications, such as back-plates for rollable displays or radio-frequency identification (RFID) tags. While some applications remain a distant prospect, others have been commercially realized: OLEDs televisions have been demonstrated and white-light panels based on organic electroluminescence have found markets in architectural lighting. These devices are based on semiconducting and/or light-emitting conjugated organic materials. There is an incentive to develop low-cost and scalable processing methods so that the solution processing of materials is particularly attractive.

In an organic semiconductor, charge-carrier transport, and light-emission depend not only on the orbital energies and wavefunctions of the individual molecules or polymer chains, but also on intermolecular interactions, ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required