Oh, Do-Hyun Lee, Soojin Cho, Woon-Jo Kim, Tae Whan 2024-01-21T00:34:52Z 2024-01-21T00:34:52Z 2021-09-02 2007-08 0022-2461 https://pubs.kist.re.kr/handle/201004/134238 The effects of hydrogenation and aging on the optical properties in porous Si (PS) layers were investigated by using photoluminescence (PL) measurements. When the hydrogenated PS layers were aged in air, the intensity of the PL spectrum increased. The emission peak for the hydrogenated PS layers shifted to higher energy with decreasing H-2/N-2 ratio. The relation of the dehydrogenized states in the as-formed PS surface to the quantum states of Si nanoparticles with relatively small sizes is discussed. These results indicate that the optical properties of PS layers are significantly affected by hydrogenation and aging. English SPRINGER PHOTOLUMINESCENCE PASSIVATION Effects of hydrogenation and aging on the optical properties in porous Si layers Article 10.1007/s10853-006-1306-y 1 JOURNAL OF MATERIALS SCIENCE, v.42, no.16, pp.6862 - 6865 JOURNAL OF MATERIALS SCIENCE 42 16 6862 6865 scie scopus 000247934700054 2-s2.0-34547333626 Materials Science, Multidisciplinary Materials Science Article PHOTOLUMINESCENCE PASSIVATION silicon porous hydrogenation