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Title: Luminescence imaging systems and methods for evaluating photovoltaic devices

Abstract

The present disclosure relates to optical methods and systems for detecting defects in photovoltaic (PV) devices such as PV cells, PV panels, PV modules, and PV arrays.

Inventors:
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1354783
Patent Number(s):
9,641,125
Application Number:
15/002,628
Assignee:
Alliance for Sustainable Energy, LLC NREL
DOE Contract Number:
AC36-08G028308
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 Jan 21
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY

Citation Formats

Johnston, Steven. Luminescence imaging systems and methods for evaluating photovoltaic devices. United States: N. p., 2017. Web.
Johnston, Steven. Luminescence imaging systems and methods for evaluating photovoltaic devices. United States.
Johnston, Steven. Tue . "Luminescence imaging systems and methods for evaluating photovoltaic devices". United States. doi:. https://www.osti.gov/servlets/purl/1354783.
@article{osti_1354783,
title = {Luminescence imaging systems and methods for evaluating photovoltaic devices},
author = {Johnston, Steven},
abstractNote = {The present disclosure relates to optical methods and systems for detecting defects in photovoltaic (PV) devices such as PV cells, PV panels, PV modules, and PV arrays.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 02 00:00:00 EDT 2017},
month = {Tue May 02 00:00:00 EDT 2017}
}

Patent:

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  • Certain exemplary embodiments comprise a system, which can comprise an imaging plate. The imaging plate can be exposable by an x-ray source. The imaging plate can be configured to be used in digital radiographic imaging. The imaging plate can comprise a phosphor-based image storage device configured to convert an image stored therein into light.
  • Certain exemplary embodiments comprise a system, which can comprise an imaging plate. The imaging plate can be exposable by an x-ray source. The imaging plate can be configured to be used in digital radiographic imaging. The imaging plate can comprise a phosphor-based image storage device configured to convert an image stored therein into light.
  • Terahertz imaging devices may comprise a focal plane array including a substrate and a plurality of resonance elements. The plurality of resonance elements may comprise a conductive material coupled to the substrate. Each resonance element of the plurality of resonance elements may be configured to resonate and produce an output signal responsive to incident radiation having a frequency between about a 0.1 THz and 4 THz range. A method of detecting a hazardous material may comprise receiving incident radiation by a focal plane array having a plurality of discrete pixels including a resonance element configured to absorb the incident radiationmore » at a resonant frequency in the THz, generating an output signal from each of the discrete pixels, and determining a presence of a hazardous material by interpreting spectral information from the output signal.« less
  • A device is described for sensing pressure at a source thereof comprising: a housing with fluid pressure responsive means movable therin for defining therewith an expansible chamber means for communication with the pressure source; and a transducer comprising a body of magnetoelastic material of generally annular form positioned within the housing and having magnetic properties which vary as a function of the stress to which the annular body is subjected, the annular body being stressed in response to movement of the fluid pressure responsive means. The transducer includes means responsive to the stress-induced changes in the magnetic properties thereof formore » producing an electrical signal having a value which is a function of the magnitude of the fluid pressure. The transducer also comprises a means for accepting and retaining a sector of the annular body and movable with the fluid pressure responsive means and a cradle arranged in the housing to accept and retain a generally diametrically opposite sector of the annular body so that an increase in the fluid pressure in the expansible chamber means tends to compress the annular body between the accepting and retaining means and the cradle. The cradle has a portion thereof shaped to form a bobbin on which is wound at least one coil comprising the means for producing the electrical signal.« less
  • Energy harvesting devices include a substrate coupled with a photovoltaic material and a plurality of resonance elements associated with the substrate. The resonance elements are configured to collect energy in at least visible and infrared light spectra. Each resonance element is capacitively coupled with the photovoltaic material, and may be configured to resonate at a bandgap energy of the photovoltaic material. Systems include a photovoltaic material coupled with a feedpoint of a resonance element. Methods for harvesting energy include exposing a resonance element having a resonant electromagnetic radiation having a frequency between approximately 20 THz and approximately 1,000 THz, absorbingmore » at least a portion of the electromagnetic radiation with the resonance element, and resonating the resonance element at a bandgap energy of an underlying photovoltaic material. Methods for forming an energy harvesting device include forming resonance elements on a substrate and capacitively coupling the resonance elements with a photovoltaic material.« less