Controlling the optical properties of inorganic nanoparticles

Research output: Contribution to journalArticlepeer-review

220 Scopus citations


The sophistication with which we can now prepare and characterize inorganic nanoparticles has inspired new areas of research into the fundamental properties and applications of these fascinating nanoscate systems. In this article some of the recent ideas concerning control of their optical properties are examined and explained, focusing on semiconductor nanocrystals. It is known that the optical properties of nanocrystals can be size-tunable, but it is less obvious how shape matters. To explain how size as welt as shape matters, the electronic structure of nanocrystals is sketched in relatively simple terms, leading to an introduction to deeper concepts at the heart of spectroscopy such as the exciton fine structure. The excitan fine structure states, although obscured by inhomogeneous line broadening, dictate selection rules for optical excitation. These viewpoints are compared and contrasted to well-established principles in molecular spectroscopy that provide inspiration as well as perspective. The control of optical poperties is founded on our ability to prepare good quality colloidal particles. Recent advances in nanocrystal shape control are described. The current status of heterostructures is examined, with an emphasis on charge separation in CdSe-CdTe nanorods.

Original languageEnglish (US)
Pages (from-to)1157-1172
Number of pages16
JournalAdvanced Functional Materials
Issue number8
StatePublished - Apr 25 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • General Chemistry
  • Condensed Matter Physics
  • General Materials Science
  • Electrochemistry
  • Biomaterials


Dive into the research topics of 'Controlling the optical properties of inorganic nanoparticles'. Together they form a unique fingerprint.

Cite this