Results 101 to 110 of about 238 (122)

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

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

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

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

Degradation of multijunction photovoltaic gridlines induced via thermal cycling

Solar Energy Materials and Solar Cells, 2018
Abstract A well-known but heretofore uncharacterized failure mechanism in multijunction photovoltaic cells involves the development of cracks in the top cell directly adjacent to metal gridline structures. In this study, we systematically explore the potential evolution of stress, grain size, roughness, and hardness of metal gridlines during thermal ...
Ryan E. Brock, Peter Hebert, James Ermer, Reinhold H. Dauskardt   +3 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

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

Lateral multijunction photovoltaic cells

2017
In this work, features of solar cells of lateral type were analyzed. The authors offered a design of a monolithic compact solar module with cells electrically connected in series and with a dispersion element (holographic grating). Simulation of a multistage converter was carried out.
Sachenko, A.V., Kulish, M.R., Sokolovskyi, I.O., Kostylyov, V.P.   +3 more
openaire   +1 more source

High-efficiency multijunction photovoltaics for low-cost solar electricity

LEOS 2008 - 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society, 2008
Multijunction solar cells divide the solar spectrum into smaller slices, delivering experimental efficiencies over 40%, and enabling theoretical efficiency over 60%. These high efficiency cells have a powerful effect on the cost effectiveness of new concentrator photovoltaic systems now being deployed around the world, making this technology one of the
Richard R. King, Andreea Boca, William Hong, Daniel Law, Geoff Kinsey, Chris Fetzer, Moran Haddad, Ken Edmondson, Hojun Yoon, Peichen Pien, Nasser Karam   +10 more
openaire   +1 more source

Progress in crystalline multijunction and thin-film photovoltaics

Journal of Electronic Materials, 2005
Photovoltaics are important in terrestrial applications such as remote power and renewable energy but are the primary source of electrical power for space systems. For space applications, priorities are high conversion efficiency and resistance to radiation-induced degradation.
openaire   +1 more source