Searched for: department:"Electrical%5C%2BSustainable%5C%2BEnergy"
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document
Si, F.T. (author), Isabella, O. (author), Zeman, M. (author)
Mixed-phase hydrogenated silicon oxide (SiOx:H) is applied to thin-film hydrogenated amorphous silicon germanium (a-SiGe:H) solar cells serving as both p-doped and n-doped layers. The bandgap of p-SiOx:H is adjusted to achieve a highly-transparent window layer while also providing a strong electric field. Bandgap grading of n-SiOx:H is designed...
journal article 2017
document
Si, F.T. (author), Isabella, O. (author), Zeman, M. (author)
The benefit of two-terminal multijunction solar cells in regard to the number
of junctions (subcells) is critically evaluated. The optical and electrical losses
inherent in the construction of multijunction cells are analyzed using information
from thin-film silicon photovoltaics as a representative case. Although
the...
journal article 2017
document
Si, F.T. (author), Isabella, O. (author), Zeman, M. (author), Tan, H. (author)
We fabricated and studied quadruple-junction wide-gap a-Si:H/narrow-gap a-Si:H/a-SiGex:H/nc-Si:H thin-film silicon solar cells. It is among the first attempts in thin-film photovoltaics to make a two-terminal solar cell with four different absorber materials. Several tunnel recombination junctions were tested, and the n-SiOx:H/p-SiOx:H structure...
journal article 2017
document
Si, F.T. (author), Isabella, O. (author), Zeman, M. (author)
Multijunction solar cells promise higher power-conversion efficiency than the single-junction. With respect to two-terminal devices, an accurate measurement of the spectral response requires a delicate adjustment of the light- and voltage-biasing; otherwise it can result in artifacts in the data and thus misinterpretation of the cell properties....
journal article 2016
document
Si, F.T. (author), Kim, D. (author), Santbergen, R. (author), Tan, H. (author), Van Swaaij, R.A.C.M.M. (author), Smets, A.H.M. (author), Isabella, O. (author), Zeman, M. (author)
journal article 2014
Searched for: department:"Electrical%5C%2BSustainable%5C%2BEnergy"
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