Nanostructures for Enhanced Light Absorption in Solar Energy Devices
Artikel i vetenskaplig tidskrift, 2011

The fascinating optical properties of nanostructured materials find important applications in a number of solar energy utilization schemes and devices. Nanotechnology provides methods for fabrication and use of structures and systems with size corresponding to the wavelength of visible light. This opens a wealth of possibilities to explore the new, often of resonance character, phenomena observed when the object size and the electromagnetic field periodicity (light wavelength lambda) match. Here we briefly review the effects and concepts of enhanced light absorption in nanostructures and illustrate them with specific examples from recent literature and from our studies. These include enhanced optical absorption of composite photocatalytically active TiO(2)/graphitic carbon films, systems with enhanced surface plasmon resonance, field-enhanced absorption in nanofabricated carbon structures with geometrical optical resonances and excitation of waveguiding modes in supported nanoparticle assembles. The case of Ag particles plasmon-mediated chemistry of NO on graphite surface is highlighted to illustrate the principle of plasmon-electron coupling in adsorbate systems.

carbon

nanocrystals

cells

surface

photonic crystals

nanotubes

conversion efficiency

metal nanoparticles

optics

photochemistry

mechanisms

Författare

Gustav Edman Jönsson

Chalmers, Teknisk fysik, Kemisk fysik

Hans Fredriksson

Chalmers, Teknisk fysik, Kemisk fysik

Raja Sellappan

Chalmers, Teknisk fysik, Kemisk fysik

Dinko Chakarov

Chalmers, Teknisk fysik, Kemisk fysik

International Journal of Photoenergy

1110-662X (ISSN) 1687-529X (eISSN)

939807

Ämneskategorier

Fysik

Kemi

DOI

10.1155/2011/939807