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http://dx.doi.org/10.5757/JKVS.2007.16.3.221

DBR PSi/Polymer Composite Materials -Dual Photonic Characteristics  

Park, Cheol-Young (Department of Chemistry, Chosun University)
Jang, Seung-Hyun (Department of Chemistry, Chosun University)
Kim, Ji-Hoon (Department of Chemistry, Chosun University)
Park, Jae-Hyun (Department of Chemistry, Chosun University)
Koh, Young-Dae (Department of Chemistry, Chosun University)
Kim, Sung-Jin (Department of Chemistry, Chosun University)
Ko, Young-Chun (Department of Nano-Chemical/Environmental Engineering, Daebul University)
Sohn, Hong-Lae (Department of Chemistry, Chosun University)
Publication Information
Journal of the Korean Vacuum Society / v.16, no.3, 2007 , pp. 221-226 More about this Journal
Abstract
DBR (distributed Bragg reflectors) PSi (porous silicon) composite films displaying dual optical properties, both optical reflectivity and photoluminescence had been developed. DBR PSi samples were prepared by electrochemical etch of heavily doped $p^{++}-type$ silicon wafers (boron doped, polished on the <100> face, resistivity of $0.8-1.2m{\Omega}-cm$, Siltronix, Inc.). Free-standing DBR PSi films were treated with PMMA (polymethyl methacrylate) to produce flexible, stable composite materials in which the PSi matrix is covered with PMMA containing photoluminescent polysiloles. Optical characteristics of DBR PSi/polysilole-impregnated PMMA composite materials exhibit both their photonic reflectivity at 565 nm and photoluminescence at 510 nm, simultaneously. A possible application of this materials will be discussed.
Keywords
DBR PSi; Polysilole; PMMA; Photolumlnescence; Reflectivity;
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