Enhancement of porous silicon photoluminescence property by lithium chloride treatment
作者： Khawla Azaiez , Rabia Benabderrahmane Zaghouani , Saleh Khamlich , Hosny Meddeb , Wissem Dimassi
DOI: 10.1016/J.APSUSC.2018.02.006
关键词: Microporous material 、 Porous silicon 、 Passivation 、 Chemical engineering 、 Photoluminescence 、 Materials science 、 Lithium chloride 、 Carrier lifetime 、 Silicon 、 Fourier transform infrared spectroscopy
摘要: Abstract Porous silicon (PS) decorated by several nanostructured metal elements has still aroused interests as promising composites in many industrial applications. With the focus mainly on synthesis, aspect of stability against optical irradiation such materials so far not been thoroughly addressed. This work focuses primarily influence lithium chloride solution (LiCl) treatment physical properties PS. Variations structural and optoelectronic PS were observed after immersion (LiCl), revealed obtained analyses. Moreover, enhanced photoluminescence (PL) property passivation particles was clearly shown, their presence surface microporous confirmed FTIR spectroscopy atomic force microscopy. An improvement minority carrier lifetime also obtained, which attributed to decrease recombination velocity LiCl treatment.
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