J. Kocka et al., DEMONSTRATION OF SPACE-CHARGE-LIMITED TIME-OF-FLIGHT AS A NEW TOOL FOR CHARACTERIZATION OF REAL A-SI-H SOLAR-CELLS, Journal of non-crystalline solids, 166, 1993, pp. 489-492
First we discuss the problems of the SCL-TOF transients measured on re
al solar cells in a current mode. By comparison with an independent me
thod of finding of the density of states (DOS) we show that the charge
Q(cc), collected in the Space-Charge-Limited (SCL) - Time of Flight (
TOF) method is clearly related to the DOS. We demonstrate that the pro
blems of current mode are excluded in the integral mode SCL-TOF, for w
hich we present the simple theory, within the framework of which we di
scuss the new experimental results.