III–V solar cells under monochromatic illumination

@article{Bett2008IIIVSC,
  title={III–V solar cells under monochromatic illumination},
  author={Andreas W. Bett and Frank Dimroth and Rudiger Lockenhoff and Eduard Oliva and J. Schubert},
  journal={2008 33rd IEEE Photovoltaic Specialists Conference},
  year={2008},
  pages={1-5}
}
Photovoltaic cells illuminated with a monochromatic light source have revealed the highest ever reported photon-energy conversion efficiency. In this paper we investigate laser illuminated photovoltaic cells. III–V materials including GaInP, GaAs and GaSb were used to fabricate laser power converters. A special emphasis is given to the GaAs material. Here we report on the use of a lateral conduction layer which reduces the emitter sheet resistance. This solves the problem of ohmic losses due to… 

Figures and Tables from this paper

Design and fabrication of six-volt vertically-stacked GaAs photovoltaic power converter
TLDR
The external quantum efficiency (EQE) measurement indicates that the performance of PPC can be further improved by refining the design of the thickness of sub-cells and improving TJs.
Ultra-efficient N-junction photovoltaic cells with VOC > 14V at high optical input powers
GaAs phototransducers with 5 to 12 p/n junctions are shown to demonstrate breakthrough performance in optical conversion efficiency ranging from 65% to just under 70%. In particular, for a
III–V Laser Power Converters With Vertically Stacked Subcells Demonstrating Superior Radiation Resilience
Photovoltaic cells are detrimentally impacted by exposure to ionizing radiation, a consideration of particular significance for applications in outer space. In this paper, we demonstrate that
Response of GaAs Photovoltaic Converters Under Pulsed Laser Illumination
GaAs photovoltaic converters are useful for the conversion of monochromatic light into electrical power in numerous military and industrial applications. In these applications, high output voltages
COMPARISON OF MEASURED PERFORMANCE AND THEORETICAL LIMITS OF GAAS LASER POWER CONVERTERS UNDER MONOCHROMATIC LIGHT
Evaluation of GaAs laser power converters (LPC) is reported in light of theoretical maximum limits calculated with detailed balance method proposed by Shockley and Queisser (SQ). Calculations were
Integrated series/parallel connection for photovoltaic laser power converters with optimized current matching
In this paper, we present a stepped architecture optimized for current matching in high‐voltage laser power converter photovoltaic (PV) cells. The integrated series/parallel connection in stepped PV
On the temperature dependence of dual‐junction laser power converters
Dual‐junction GaAs laser power converters optimized for one monochromatic wavelength are presented, and their temperature dependence is experimentally evaluated. External quantum efficiency and
Low Illumination Light (LIL) Solar Cells: Indoor and Monochromatic Light Harvesting
Abstract : Low and indoor light energy harvesting is needed to meet the demands of zero net energy (ZNE) building, Internet of Things (IoT), and indirect energy conversion isotope battery (IDEC iBAT)
Characterization and Mitigation of Resistive Losses in a Large Area Laser Power Converter
Abstract : GaAs Laser Power Converters (LPC) were simulated in 2D and 3D under 10 W/cm2 illumination of 810 nm light using Synopsys Sentaurus software revealing significant dependence of effciency on
...
...

References

SHOWING 1-10 OF 16 REFERENCES
GaAs converters for high power densities of laser illumination
Photovoltaic power converters can be used to generate electricity directly from laser light. In this paper we report the development of GaAs PV power converters with improved conversion efficiency at
GaAs converter for high power laser diode
Transmission of electrical power in an optical form is of increasing interest. Many applications of this technique can have high conversion efficiency over 50%. An optical power transmission system
GaAs- and InAlGaAs-based concentrator-type cells for conversion of power transmitted by optical fibers
A novel application for high intensity GaAs-based solar cells is conversion of monochromatic light transmitted by fiber optics into electrical power for remote sensors. At present, the efficiencies
High efficiency monochromatic GaAs solar cells
Efforts to develop GaAs solar cells for coupling to laser beams in the wavelength range of 800 to 840 nm are described. The work has been motivated primarily by interest in space-to-space power
III-V compounds for solar cell applications
Abstract.Research activities in the field of III-V solar cells are reviewed. III-V compound semiconductors are used for space solar cells, concentrator solar cells, and in thermophotovoltaic
GaAs multiple photovoltaic converters with an efficiency of 45% for monochromatic illumination
Multiple photovoltaic converters for optical powering systems have been developed in this work. Devices with efficiencies over 45% have been manufactured. They are able to deliver a maximum output
45% efficient silicon photovoltaic cell under monochromatic light
Improvements in the performance of silicon photovoltaic cells for solar applications are adapted for nonsolar photovoltaic applications. Improved monochromatic light efficiencies above 45% are
High current density GaAs and GaSb photovoltaic cells for laser power beaming
AlGaAs/GaAs- and GaSb-based laser power PV converters operating at output photocurrent densities up to 100 A/cm/sup 2/ were fabricated. Fill Factor values of 0.85-0.87 at laser power density P/sub
40% efficient metamorphic GaInP∕GaInAs∕Ge multijunction solar cells
An efficiency of 40.7% was measured and independently confirmed for a metamorphic three-junction GaInP∕GaInAs∕Ge cell under the standard spectrum for terrestrial concentrator solar cells at 240 suns
...
...