Implementing Thermometry on Silicon Surfaces Functionalized by Lanthanide-Doped Self-Assembled Polymer Monolayers

authors	Rodrigues, M; Pinol, R; Antorrena, G; Brites, CDS; Silva, NJO; Murillo, JL; Cases, R; Diez, I; Palacio, F; Torras, N; Plaza, JA; Perez-Garcia, L; Carlos, LD; Millan, A
nationality	International
journal	ADVANCED FUNCTIONAL MATERIALS
author keywords	lanthanide ions; luminescent thermometers; molecular logic gates; silicon; surface functionalization
keywords	MOLECULAR LOGIC GATES; UPCONVERTING NANOPARTICLES; QUANTUM DOTS; TEMPERATURE; LUMINESCENCE; NANOSCALE; DEVICES; 3-AMINOPROPYLTRIETHOXYSILANE; NANOTHERMOMETRY; FLUORESCENCE
abstract	The 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.
publisher	WILEY-V C H VERLAG GMBH
issn	1616-301X
year published	2016
volume	26
issue	2
beginning page	200
ending page	209
digital object identifier (doi)	10.1002/adfm.201503889
web of science category	Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
subject category	Chemistry; Science & Technology - Other Topics; Materials Science; Physics
unique article identifier	WOS:000368041200004