Control of photoluminescence spectra of porous nc-Si-SiOx structures by vapor treatment - V. A. Danko; Ya. Bratus; I. Z. Indutnyi; I. P. Lisovskyy; S. O. Zlobin; K. V. Michailovska; P. E. Shepeliavyi (Semiconductor Physics, Quantum Electronics and Optoelectronics, 2010)