Nanostructures for Enhanced Light Absorption in Solar Energy Devices
Journal article, 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

Author

Gustav Edman Jönsson

Chalmers, Applied Physics, Chemical Physics

Hans Fredriksson

Chalmers, Applied Physics, Chemical Physics

Raja Sellappan

Chalmers, Applied Physics, Chemical Physics

Dinko Chakarov

Chalmers, Applied Physics, Chemical Physics

International Journal of Photoenergy

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

939807

Subject Categories

Physical Sciences

Chemical Sciences

DOI

10.1155/2011/939807

More information

Created

10/7/2017