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Elzerman, J.M. (author), Hanson, R. (author), Willems van Beveren, L.H. (author), Vandersypen, L.M.K. (author), Kouwenhoven, L.P. (author)
We demonstrate a method for measuring the discrete energy spectrum of a quantum dot connected very weakly to a single lead. A train of voltage pulses applied to a metal gate induces tunneling of electrons between the quantum dot and a reservoir. The effective tunnel rate depends on the number and nature of the energy levels in the dot made...
journal article 2004
document
Nanu, M. (author), Boulch, F. (author), Schoonman, J. (author), Goossens, A. (author)
Deep-level transient spectroscopy (DLTS) has been used to measure the concentration and energy position of deep electronic states in CuInS2. Flat TiO2?CuInS2 heterojunctions as well as TiO2-CuInS2 nanocomposites have been investigated. Subband-gap electronic states in CuInS2 films are mostly due to antisite point defects and vacancies....
journal article 2005
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Kihara Rurimo, G. (author), Schardt, M. (author), Quabis, S. (author), Malzer, S. (author), Dotzler, C. (author), Winkler, A. (author), Leuchs, G. (author), Döhler, G.H. (author), Driscoll, D. (author), Hanson, M. (author), Gossard, A.C. (author), Pereira, S.F. (author)
We report a method to measure the electric energy density of longitudinal and transverse electric field components of strongly focused polarized laser beams. We used a quantum well photodetector and exploited the polarization dependent optical transitions of light holes and heavy holes to probe the electric field distribution in the focal region...
journal article 2006
document
Savenije, T.J. (author), Nanu, M. (author), Schoonman, J. (author), Goossens, A. (author)
Photoinduced interfacial charge carrier generation, separation, trapping, and recombination in TiO2?In2S3?CuInS2 cells have been studied with time-resolved microwave conductivity (TRMC). Single layer, double layer, and complete triple layer configurations have been studied. Selective electronic excitation in one of the components is accomplished...
journal article 2007
document
Nakano, M. (author), Alves, H. (author), Molinari, A.S. (author), Ono, S. (author), Minder, N. (author), Morpurgo, A.F. (author)
We investigated transport properties of organic heterointerfaces formed by single-crystals of two organic donor-acceptor molecules, tetramethyltetraselenafulvalene and 7,7,8,8-tetracyanoquinodimethane (TCNQ). Whereas the individual crystals have unmeasurably high resistance, the interface exhibits a resistivity of few tens of megohm with a...
journal article 2010
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