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Title

Implementing thermometry on silicon surfaces functionalized by lanthanide-doped self-assembled polymer monolayers

AuthorsPiñol, Rafael; Antorrena, Guillermo; Brites, Carlos; Silva, Nuno Joâo O.; Murillo, José Luis; Cases, Rafael; Díez, Isabel; Palacio, Fernando; Carlos, Luis D.; Millán, Ángel
KeywordsMolecular logic gates
Luminescent thermometers
Silicon
Surface functionalization
Lanthanide ions
Issue Date2016
PublisherWiley-VCH
CitationAdvanced Functional Materials 26(2): 200-209 (2016)
AbstractThe thermal gradients generated at submicrometer scale by the millions of transistors contained in integrated circuits are becoming the key limiting factor for device integration in micro- and nanoelectronics. Noncontact thermometric techniques with high-spatial resolution are, thus, essential for noninvasive off-chip characterization and heat management on Si surfaces. Here, the first ratiometric luminescent molecular thermometer implemented in a self-assembled polymer monolayer functionalized Si surface is reported. The functionalization of Si surfaces with luminescent thermometers constitutes a proof-of-concept that foretells a wide range of applications in Si-based micro- and nanostructures. The thermometric functionalization of the Si surface with Tb3+ and Eu3+ complexes leads to a thermal sensitivity up to 1.43% K−1, a cycle–recycle reliability of 98.6%, and a temperature uncertainty of less than 0.3 K. The functionalized surface presents reversible bistability that can be used as an optically active molecular demultiplexer.
URIhttp://hdl.handle.net/10261/148404
DOI10.1002/adfm.201503889
Identifiersdoi: 10.1002/adfm.201503889
e-issn: 1616-3028
issn: 1616-301X
Appears in Collections:(ICMA) Artículos
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