Am. Emel'Yanov et al., Tunnel light-emitting Si :(Er,O) diodes with a short rise time of Er3+ electroluminescence under breakdown conditions, SEMICONDUCT, 34(8), 2000, pp. 927-930
Si:(Er,O)-based tunnel light-emitting diodes were fabricated and exhibited
the shortest ever recorded characteristic rise time for erbium electrolumin
escence. This is due to the formation of Er-related centers with an effecti
ve excitation cross section for erbium ions of similar to 7 x 10(-16) cm(2)
and an excited-state lifetime of similar to 17 mu s. The lifetime of the f
irst excited state of erbium ions after turning off the reverse current was
measured for the first time; this lifetime is associated with Auger energy
transfer to free electrons in the electrically neutral region of the diode
. (C) 2000 MAIK "Nauka/Interperiodica".