Six-junction III–V solar cells with 47.1% conversion efficiency under 143 Suns concentration

  title={Six-junction III–V solar cells with 47.1\% conversion efficiency under 143 Suns concentration},
  author={John F. Geisz and Ryan M. France and Kevin L. Schulte and Myles A. Steiner and Andrew G. Norman and Harvey L. Guthrey and Matthew R. Young and Tao Song and Tom E. Moriarty},
  journal={Nature Energy},
Single-junction flat-plate terrestrial solar cells are fundamentally limited to about 30% solar-to-electricity conversion efficiency, but multiple junctions and concentrated light make much higher efficiencies practically achievable. Until now, four-junction III–V concentrator solar cells have demonstrated the highest solar conversion efficiencies. Here, we demonstrate 47.1% solar conversion efficiency using a monolithic, series-connected, six-junction inverted metamorphic structure operated… 

High efficiency 6-junction solar cells for the global and direct spectra

We show 6-junction inverted metamorphic solar cells with high efficiencies under both the global and direct spectrum, and discuss improvements to device components. High voltage AlGaInP subcells are

Two‐terminal III–V//Si triple‐junction solar cell with power conversion efficiency of 35.9 % at AM1.5g

III–V//Si multijunction solar cells offer a pathway to increase the power conversion efficiency beyond the fundamental Auger limit of silicon single‐junctions. In this work, we demonstrate how the

High-Efficiency GaAs-Based Solar Cells

The III-V compound solar cells represented by GaAs solar cells have contributed as space and concentrator solar cells and are important as sub-cells for multijunction solar cells. This chapter

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In order to realize a clean energy society by using renewable energies, high-performance solar cells are a very attractive proposition. The development of high-performance solar cells offers a

16.8% Monolithic all-perovskite triple-junction solar cells via a universal two-step solution process

A versatile two-step solution process for high-quality 1.73 eV wide-bandgap perovskite films achieves power conversion efficiencies of above 19% for monolithic all-perovskites tandem solar cells with limited loss of potential energy and fill factor.

Development of dual junction GaInP/GaAs solar cells for high-performance concentrator photovoltaic quad-junction III-V/IV

The use of III-V and group IV compounds in the same heterostructure is of great interest for high performances solar cells under concentration. In fact, the combination of these III-V and group IV

III-V-on-silicon triple-junction based on the heterojunction bipolar transistor solar cell concept

We propose a new triple-junction solar cell structure composed of a III-V heterojunction bipolar transistor solar cell (HBTSC) stacked on top of, and series-connected to, a Si solar cell

On the energy conversion efficiency of the bulk photovoltaic effect

The bulk photovoltaic effect (BPVE) leads to directed photo-currents and photo-voltages in bulk materials. Unlike photo-voltages in p-n junction solar cells that are limited by carrier recombination

An efficient and stable solar flow battery enabled by a single-junction GaAs photoelectrode

An efficient and stable SFB built with back-illuminated single-junction GaAs photoelectrode with an n-p-n sandwiched design is shown, leading to a record SOEE of 15.4% among single-Junction SFB devices.



Six-junction concentrator solar cells

We report on six-junction inverted metamorphic (6J IMM) solar cells developed for concentrator applications. Monolithic III-V structures are grown by metal organic vapor phase epitaxy with junction

40.8% efficient inverted triple-junction solar cell with two independently metamorphic junctions

A photovoltaic conversion efficiency of 40.8% at 326 suns concentration is demonstrated in a monolithically grown, triple-junction III–V solar cell structure in which each active junction is composed

Four-junction wafer bonded concentrator solar cells

Summary form only given. The highest solar cell conversion efficiencies are achieved with Four-junction devices under concentrated sunlight illumination. Different cell architectures are under

Direct solar-to-hydrogen conversion via inverted metamorphic multi-junction semiconductor architectures

Solar water splitting via multi-junction semiconductor photoelectrochemical cells provides direct conversion of solar energy to stored chemical energy as hydrogen bonds. Economical hydrogen

Pathway to 50% efficient inverted metamorphic concentrator solar cells

Series-connected five (5J) and six junction (6J) concentrator solar cell strategies have the realistic potential to exceed 50% efficiency to enable low-cost CPV systems. We propose three strategies

Building a Six-Junction Inverted Metamorphic Concentrator Solar Cell

We propose practical six-junction (6J) inverted metamorphic multijunction (IMM) concentrator solar cell designs with the potential to exceed 50% efficiency using moderately high quality junction

Component integration strategies in metamorphic 4-junction III-V concentrator solar cells

Progressing beyond 3-junction inverted-metamorphic multijunction solar cells grown on GaAs substrates, to 4-junction devices, requires the development of high quality metamorphic 0.7 eV GaInAs solar

Limiting efficiencies of ideal single and multiple energy gap terrestrial solar cells

  • C. Henry
  • Physics, Environmental Science
  • 1980
The maximum efficiencies of ideal solar cells are calculated for both single and multiple energy gap cells using a standard air mass 1.5 terrestrial solar spectrum. The calculations of efficiency are

Optical enhancement of the open-circuit voltage in high quality GaAs solar cells

The self-absorption of radiated photons increases the minority carrier concentration in semiconductor optoelectronic devices such as solar cells. This so-called photon recycling leads to an increase

High aspect ratio electrodeposited Ni/Au contacts for GaAs‐based III–V concentrator solar cells

We report on a photolithographic and electro‐deposition process that results in an optimized front grid structure for high efficiency multi‐junction III–V concentrator solar cells operating under