title: Organic-Inorganic Eu(3+)/Tb(3+) codoped hybrid films for temperature mapping in integrated circuits.
abstract: The continuous decrease on the geometric size of electronic devices and integrated circuits generates higher local power densities and localized heating problems that cannot be characterized by conventional thermographic techniques. Here, a self-referencing intensity-based molecular thermometer involving a di-ureasil organic-inorganic hybrid thin film co-doped with Eu(3+) and Tb(3+) tris (β-diketonate) chelates is used to obtain the temperature map of a FR4 printed wiring board with spatio-temporal resolutions of 0.42 μm/4.8 ms.
authors.affiliation: Departamento de Física and CICECO, Universidade de Aveiro Aveiro, Portugal.
authors.forename: Carlos D S
authors.initials: CD
authors.lastname: Brites
authors.affiliation: Departamento de Física and CICECO, Universidade de Aveiro Aveiro, Portugal.
authors.forename: Patrícia P
authors.initials: PP
authors.lastname: Lima
authors.affiliation: Departamento de Física and CICECO, Universidade de Aveiro Aveiro, Portugal.
authors.forename: Nuno J O
authors.initials: NJ
authors.lastname: Silva
authors.affiliation: Departamento de Fisica de la Materia Condensada, Facultad de Ciencias and Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza Zaragoza, Spain.
authors.forename: Angel
authors.initials: A
authors.lastname: Millán
authors.affiliation: Departamento de Física and CICECO, Universidade de Aveiro Aveiro, Portugal.
authors.forename: Vitor S
authors.initials: VS
authors.lastname: Amaral
authors.affiliation: Departamento de Fisica de la Materia Condensada, Facultad de Ciencias and Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza Zaragoza, Spain.
authors.forename: Fernando
authors.initials: F
authors.lastname: Palacio
authors.affiliation: Departamento de Física and CICECO, Universidade de Aveiro Aveiro, Portugal.
authors.forename: Luís D
authors.initials: LD
authors.lastname: Carlos
keywords: lanthanide ions; molecular thermometer; organic–inorganic hybrids; spatio-temporal resolution