Ty. Gorbach et al., EVOLUTION OF THE CURRENT-VOLTAGE CHARACTERISTICS OF PHOTOLUMINESCING POROUS SILICON DURING CHEMICAL ETCHING, Semiconductors, 31(12), 1997, pp. 1221-1224
It has been established that chemical etching of porous silicon in HF
results in a large change in the current-voltage characteristics and p
hotoluminescence parameters of the silicon. The results of the investi
gation can be used to increase the efficiency of electroluminescence s
tructures In-(porous Si)-Al by increasing the injection level of minor
ity carriers and realizing a regime of double injection and high surfa
ce recombination rate near the surface of porous silicon. (C) 1997 Ame
rican Institute of Physics. [S1063-7826(97)00511-5].