Solar energy conversion through the interaction of plasmons with tunnel junctions.
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Solar energy conversion through the interaction of plasmons with tunnel junctions. final report on NASA grant NAG 3-433

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Published by School of Electrical Engineering, Purdue University in West Lafayette, Ind .
Written in English

Subjects:

  • Solar energy.

Book details:

Edition Notes

StatementP.E. Welsh, R.J. Schwartz.
SeriesTR-EE -- 88-37., NASA-CR -- 183044., NASA contractor report -- NASA CR-183044.
ContributionsSchwartz, R. J., United States. National Aeronautics and Space Administration.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL15291490M

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Solar Energy Conversion Through the Interaction of Plasmons with Tunnel Junctions Part A Solar Cell Analysis Part B Photoconductor Analysis By P. E. Welsh R. J. Schwartz School of Electrical Engineering Purdue University West Lafayette, IN TR-EE July This work was supported under grant NAG Author: R. E. Welsh, R. J. Schwartz. This report covers the work performed under grant NAG , “Solar Energy Conversion Through the Interaction of Plasmons with Tunnel Junctions,” during the period from June 1, to Decem Personnel performing the work were Prof. R J. Schwartz, Prof. S. Datta and Graduate Research Assistant P. E. : R. J. Schwartz, S. Datta, P. E. Welsh. Purchase Solar Energy Conversion - 2nd Edition. Print Book & E-Book. ISBN , Price: $ 1 Introduction. As an optical phenomenon, surface plasmons were first demonstrated by Michael Faraday in 1 However, they did not attract tremendous attention from scientists at the time. 2 Recently, in conjunction with nanoscale science and technology, surface plasmons are widely used in the harvest and conversion of solar energy, 3 biotechnology, 4 sensors, 5 and optical spectroscopy 6.

Plasmonic structures for solar energy harvesting describe the use of surface plasmons to increase the energy conversion efficiency of solar cells. Introduction The field of plasmonics describes the interaction of light with matter in or near nanostructured metals and owes its existence to so-called surface plasmons at the interface of metal. This review will be a discussion of both development and analysis of tunnel junction structures and their application to multi-junction solar cells. Solar energy is abundant and environmentally friendly. Efforts to generate power from solar energy have benefited from the higher efficiency of solar cell technology. Conversion of light into direct current is important for applications ranging from energy conversion to photodetection, yet often challenging over broad photon frequencies. Here we show a new architecture based on surface plasmon excitation within a metal–insulator–metal device that produces power based on spatial confinement of electron excitation through plasmon absorption. Plasmons. An efficiency of % at suns has been obtained in a metamorphic triple-junction device using a Ge bottom junction and two coupled metamorphic junctions that are both % misfit from the substrate with the band gaps , , and eV [19].This design allows for an efficiency improvement with respect to lattice-matched devices; however, its bandgap combination is still far from.

Alternative methods of solar energy are discussed in Part V. In Chapter 20 we introduce different concepts related to solar thermal energy. In Chap which is the last chapter of the regular text, we discuss solar fuels, which allow to store solar energy on the long term in the form of chemical energy. The book is concluded with an.   Abstract: We study the decay of gap plasmons localized between a scanning tunneling microscope tip and metal substrate, excited by inelastic tunneling electrons. The overall excited energy from the tunneling electrons is divided into two categories in the form of resistive dissipation and electromagnetic radiation, which together can further be separated into four different channels, .   Photon-assisted tunneling and the spatially -varying confined optical field in the tunnel barrier suggest a new means for thermal photovoltaic conversion from a . The scattering from metal nanoparticles near their localized plasmon resonance is a promising way of increasing the light absorption in thin-film solar cells. Enhancements in photocurrent have been observed for a wide range of semiconductors and solar cell configurations. We review experimental and theoretical progress that has been made in recent years, describe the basic mechanisms at work.