Study of electroluminescence in porous silicon for sensing applications

TSARGORODSKAYA, A., NABOK, A. V. and RAY, A. K. (2003). Study of electroluminescence in porous silicon for sensing applications. IEE proceedings. Circuits, devices and systems, 150 (4), 355-360.

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Electroluminescence (EL) of porous silicon (PS) samples was studied at anodic polarisation using neutral electrolyte contact. SEM and AFM morphology study of PS revealed its complex structure comprising features with micrometre and tens of nanometre dimensions. The observed features of EL, including its degradation during anodisation, were discussed in terms of a phenomenological model of a chemically modified silicon surface. The adsorption of polyelectrolytes polyallylamine (PAA) and polysterylsulphonate (PSS) demonstrated sufficient improvement of EL stability. The effect of adsorption of protein bovine serum albumin (BSA) on EL quenching was studied.

Item Type: Article
Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Electronic Materials and Sensors Research Group
Identification Number:
Page Range: 355-360
Depositing User: Ann Betterton
Date Deposited: 30 Mar 2010 15:50
Last Modified: 18 Mar 2021 21:30

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