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Kind, R. (author), Van Swaaij, R.A.C.M.M. (author), Rubinelli, F.A. (author), Solntsev, S. (author), Zeman, M. (author)
The performance of hydrogenated amorphous silicon (a-Si:H) p-i-n solar cells is limited, as they contain a relatively high concentration of defects. The dark current voltage (JV) characteristics at low forward voltages of these devices are dominated by recombination processes. The recombination rate depends on the concentration of active...
journal article 2011
document
Ishii, M. (author), Hamilton, B. (author), Poolton, N. (author)
We have observed the distribution of electron trapping centers on distorted carbon nanotubes (CNTs) by a unique x-ray analysis technique that has both elemental and spatial selectivities. This technique involves the use of scanning probe microscopy (SPM) under synchrotron radiation excitation of the inner shell of carbon. The probe detects the...
journal article 2008
document
Krumpel, A.H. (author), Van der Kolk, E. (author), Zeelenberg, D. (author), Bos, A.J.J. (author), Krämer, K.W. (author), Dorenbos, P. (author)
Photo- and thermoluminescence (TL) spectra of NaLaF4:Ln3+ (Ln = Ce,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm) and NaLaF4:Ce3+, Ln3+ (Ln = Nd,Sm,Ho,Er,Tm) are presented and used together with the empirical Dorenbos model in order to establish the 4f energy level positions of all tri- and divalent lanthanide ions doped in NaLaF4. The information will be...
journal article 2008
document
Morisato, T. (author), Ohno, K. (author), Ohtsuki, T. (author), Hirose, K. (author), Sluiter, M. (author), Kawazoe, Y. (author)
Carrying out a first-principles calculation assuming linear relationship between the electron density at Be nucleus and the electron-capture (EC) decay rate, we explained why 7Be@C60 shows higher EC decay rate than 7Be crystal, which was originally found experimentally by Ohtsuki et al. [Phys. Rev. Lett. 93, 112501 (2004)]. From the results of...
journal article 2008
document
Räsänen, E. (author), Saarikoski, H. (author), Harju, A. (author), Ciorga, M. (author), Sachrajda, A.S. (author)
Two-dimensional semiconductor quantum dots are studied in the filling-factor range 2 journal article 2008
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
Van der Kolk, E. (author), De Haas, J.T.M. (author), Bos, A.J.J. (author), Van Eijk, C.W.E. (author), Dorenbos, P. (author)
A combined photoconductivity, absorption, and thermoluminescence study was performed to understand the absence of luminescence from Ce3+ in LaAlO3:Ce3+. It is demonstrated that the absence of luminescence is the result of Ce3+ ionization from the 5d excited states, which are all located in the conduction band. Ce3+ ionization is accompanied by...
journal article 2007
document
Yan, F. (author), Migliorato, P. (author), Ishihara, R. (author)
The transient properties of single grain–thin film transistors (SG-TFTs) with high electron mobility have been studied. Overshoot current induced by trap states has been observed in most of the devices. A method of ac measurements has been used to investigate the trap processes. Both transient and ac measurements show that the response of some...
journal article 2006
document
Liefrink, F. (author), Scholten, A.J. (author), Dekker, C. (author), Dijkhuis, J.I. (author), Eppenga, R. (author), Van Houten, H. (author), Foxon, C.T. (author)
conference paper 1992
document
Dekker, C. (author), Scholten, A.J. (author), Liefrink, F. (author), Eppenga, R. (author), Van Houten, H. (author), Foxon, C.T. (author)
journal article 1991
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