| Author | Search for: Tay, Li-Lin1; Search for: Rowell, N.; Search for: Lockwood, David1 |
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| Affiliation | - National Research Council Canada. NRC Institute for Microstructural Sciences
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| Format | Text, Article |
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| Conference | Materials Research Society Symposium Proceedings |
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| Abstract | The peak energy of photoluminescence (PL) from an undecylenic acid functionalized porous Si demonstrated a large PL red-shift (∼ 75 nm) during 2.5 hours of protein incubation in our previous work. [1] Here we present a similar in-situ PL study of surface functionalized planar Si (Si:COOH). The PL of Si:COOH exhibited a 5 nm red-shift in its peak frequency and an approximately 10% drop in its intensity after incubation in a protein solution. Vibrational spectroscopic characterization was carried out upon the Si:COOH sample for which we observed the PL red-shift. The infrared absorption spectra showed clear evidence of protein adsorption on Si:COOH. This correlation study between the PL peak energy and the vibrational spectrum provided strong evidence that the observed red-shift was due to the formation of semiconductor-protein (Si:COOH:BSA) complexes. |
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| Publication date | 2006 |
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| Publisher | Materials Research Society |
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| In | |
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| Series | |
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| Peer reviewed | Yes |
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| Identifier | 10.1557/PROC-0901-Ra06-05 |
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| NPARC number | 12346641 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 23ced7b0-3952-4876-a643-9b446edc1e02 |
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| Record created | 2009-09-17 |
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| Record modified | 2020-04-22 |
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