Gallium indium eutectic masking prior to porous silicon formation creates unique spatially-dependent chemistries

Interplay Between Silicon Nanocrystal Size and Local Environment Within Porous Silicon on the Analyte-Dependent Photoluminescence Response

“…14,37–39 In this approach, the quencher ( Q ) causes the PL intensity ( I ) to decrease in a Q-dependent manner. 14,37 A response curve is created by plotting I 0 / I versus [ Q ] where I 0 and I represent the PL emission intensities in the absence and presence of Q , respectively. Figure 2 presents false color PL intensity maps from a typical pSi specimen under Ar (Fig.…”

“…Toluene was selected as the model analyte because it has been previously shown to reversibly quench the pSi PL response. 12,37…”