Searched for: author:"Loef, R."
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document
Loef, R. (author)
Space charges in two heterojunctions (i.e., TiO2/CuInS2 and TiO2/QD-CdSe) are studied by means of impedance spectroscopy and capacitance studies. Several lattice defects are found. When applied in solar cells, the defects may have a negative effect on the efficiency. Therefore, it is important to know the nature of the defects. In this thesis a...
doctoral thesis 2009
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Loef, R. (author), Schoonman, J. (author), Goossens, A. (author)
Type transformation in CuInSe2 and CuInS2 solar cells is an important issue with far reaching consequences. In the present study, the presence of a p-n homojunction inside CuInS2 in a TiO2/CuInS2 device is revealed with a detailed impedance spectroscopy and capacitance study. A n-type CuInS2 film with a thickness of 40?nm is found at the TiO2 (n...
journal article 2007
document
Friedrich, A.P. (author), Gerstner, K.N. (author), Loef, R. (author), Schuurbiers, C.A.H. (author), Teuling, M.J. (author)
Document(en) uit de collectie Chemische Procestechnologie
report 2002