Microarrays on a porous silicon platform
Richardson, Caley A.
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My research aims to develop porous silicon (pSi) sensors that exploit the intrinsic pSi photoluminescence (PL). This thesis discusses the effects of ozone (O 3 ) and hydrogen peroxide (H 2 O 2 ) oxidation on the pSi surface chemistries and PL and the creation of contact pin-printed features on the pSi surface. The thesis reports the analyte-dependent response and stability of as prepared, oxidized and silanized pSi-based microarrays. All pin-printed features are spatially heterogeneous, displaying a radially symmetric, spatially-dependent composition in surface chemistries that yields a continuum of materials that exhibit unique analyte responses and stabilities.