Organic photonic nanostructures

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Conjugated organic materials are relevant to functional photonic nanostructures because of their rich molecular structure-processing-property relationships and their propensity for strong, visible-frequency excitonic transitions. The most common organic photonic nanostructures are nanoparticles, nanowires, and nanofibers made from conjugated organic small molecules or conjugated organic polymer materials. The range of functions demonstrated at the nanoscale using organic photonic nanostructures include lasing, polarized light emission, electroluminescence, photodetection, chemical sensing, and biosensing. The optical properties and functionality of organic photonic nanostructures can differ from (and, in some cases, can be enhanced compared to) thin film and bulk samples of the constituent organic material, which can lead to optical anisotropies and changes in intramollecular or intermolecular interactions. Photon emission has been shown to be both enhanced and quenched in different types of nanoscale organic aggregates and band gaps also can vary in a nonpredictable manner with organic nanostructure size. In this chapter, size dependence, fabrication, characterization, and photonic properties of conjugated organic nanostructures (both small molecule and polymer) are discussed, along with case studies of selected photonic functions.

Original languageEnglish (US)
Title of host publicationHandbook of Organic Materials for Electronic and Photonic Devices, Second Edition
PublisherElsevier
Pages111-138
Number of pages28
ISBN (Electronic)9780081022849
ISBN (Print)9780081022856
DOIs
StatePublished - Jan 1 2018
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering
  • General Materials Science

Keywords

  • Anisotropy
  • Confinement
  • Exciton
  • Intermolecular interactions
  • Molecular order
  • Nanofiber
  • Nanoparticle
  • Nanowire
  • Photonic nanostructure

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