Results 101 to 110 of about 267 (145)

Opportunities for breaking an energy generation limit of photovoltaic using multijunction and super-multijunction cells

2018 18th International Workshop on Junction Technology (IWJT), 2018
This paper discusses the potential of the power conversion efficiency of solar cells from various materials considering external radiative efficiency, open-circuit voltage loss. The possibility of the power conversion efficiency is summarized in the 1st chapter.
Kenji Araki, Kan-Hua Lee, Masafumi Yamaguchi   +2 more
openaire   +1 more source

Bonded Multijunction Photovoltaics to Improve Efficiency and Performance

Asia Communications and Photonics Conference, 2012
Sun emits approximately 3.8x10 26 Joules per second and it produces more energy than global population demand in an hour. However, converting solar energy to electric energy is not trivial due to two major limitations. First, solar energy is not power dense, only ~1000 Watt/m 2 .
John E. Bowers, Chieh-Ting Lin, W. E. McMahon, J. S. Ward, J. F. Geisz, M. W. Wanlass, J. J. Carapella, W. Olavarria, M. Young, M. A. Steiner, R. M. Frances, A. E. Kibbler, A. Duda, J. M. Olson, E. E. Perl, D. J. Friedman   +15 more
openaire   +1 more source

Evolution of Multijunction Solar Cell Technology for Concentrating Photovoltaics

Japanese Journal of Applied Physics, 2012
Multijunction solar cells have evolved from their original development for space missions to displace silicon cells in high concentrating photovoltaic (CPV) systems. Today's three-junction lattice-matched production cells have efficiency of 39–39.5% under high concentration, and there appears to be little opportunity for further efficiency gain with
Russell K. Jones, James H. Ermer, Christopher M. Fetzer, Richard R. King   +3 more
openaire   +1 more source

Investigating thallium-based materials for use in multijunction photovoltaics

2011 37th IEEE Photovoltaic Specialists Conference, 2011
The optimum band placement for both multijunction photovoltaics, where layers of semiconductor materials are connected in series, and split junction photovoltaic systems, consisting of a number of physically separated solar cells, are investigated. Possible implementations of these designs are suggested, based on design constraints such as lattice ...
Chandler Downs, Thomas E. Vandervelde
openaire   +1 more source

Multijunction upper subcell cascade photovoltaics for space applications

Journal of Applied Physics, 1988
A new class of cascade high-efficiency photovoltaics designed for space-based applications is proposed. The design improves upper subcell performance and avoids electrical and optical losses associated with an intercell ohmic contact. Multijunction upper subcells reduce bulk recombination of photogenerated minority carriers by decreasing the average ...
J. L. Educato, M. Wagner, J. P. Leburton
openaire   +1 more source

Designing a metallic nanoconcentrator for a lateral multijunction photovoltaic cell

Journal of Applied Physics, 2011
A lateral multijunction photovoltaic (PV) concept is introduced that explores the unique ability of plasmonic nanoantennas to locally concentrate optical energy and spectrally filter incoming light at the subwavelength level. This electromagnetic field enhancement near the localized plasmon resonance modes of the metallic nanoantennas can be used to ...
Trudie Wang, Peter Peumans
openaire   +1 more source

Multijunction organic photovoltaic cells for underwater solar power

2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 2015
A modeling and simulation effort is presented that produces a design of an novel organic photovoltaic (OPV) device specifically tailored for underwater (UW) operation. An analysis of the UW environment is presented which highlights the significant advantages of OPV for UW operation.
R. J. Walters, W. Yoon, D. Placencia, D. Scheiman, M. P. Lumb, A. Strang, P. N. Stavrinou, P. P. Jenkins   +7 more
openaire   +1 more source

III–V multijunction solar cells for concentrating photovoltaics

Energy Environ. Sci., 2009
Concerns about the changing environment and fossil fuel depletion have prompted much controversy and scrutiny. One way to address these issues is to use concentrating photovoltaics (CPV) as an alternate source for energy production. Multijunction solar cells built from III–V semiconductors are being evaluated globally in CPV systems designed to ...
Hector Cotal, Chris Fetzer, Joseph Boisvert, Geoffrey Kinsey, Richard King, Peter Hebert, Hojun Yoon, Nasser Karam   +7 more
openaire   +1 more source

Quantitative adhesion characterization of antireflective coatings in multijunction photovoltaics

Solar Energy Materials and Solar Cells, 2016
Abstract We discuss the development of a new composite dual cantilever beam (cDCB) thin-film adhesion testing method, which enables the quantitative measurement of adhesion on the thin and fragile substrates used in multijunction photovoltaics.
Ryan Brock, Raunaq Rewari, Fernando D. Novoa, Peter Hebert, James Ermer, David C. Miller, Reinhold H. Dauskardt   +6 more
openaire   +1 more source

Device aspects of multijunction photovoltaic module research

Solar Cells, 1987
Abstract Multijunction modeling of single-crystal cells and of polycrystalline and thin film Si:H alloy (TFS) cells is outlined. A number of module design considerations are pointed out. The concept of an ARCO hybrid tandem TFS/-CuInSe 2 module is presented, showing a laboratory demonstration of a 4 cm 2 cell with 13.1% efficiency, and projections ...
openaire   +1 more source