All-in-one optical heater-thermometer nanoplatform operative from 300 to 2000 k based on Er(3+) emission and blackbody radiation.

Debasu, Mengistie L; Ananias, Duarte; Pastoriza-Santos, Isabel; Liz-Marzán, Luis M; Rocha, J; Carlos, Luís D · Adv Mater · 2013

basic_science · Level V

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Abstract

A single nanoplatform integrating laser-induced heat generation by gold nanoparticles and temperature sensing up to 2000 K via (Gd,Yb,Er)2 O3 nanorods is demonstrated, which presents considerable potential for nanoscale photonics and biomedicine. Blackbody emission is ascertained from the temperature increment with AuNP concentration, emission color coordinates as a function of the laser pump power, and Planck's law of blackbody radiation.

Medical subject headings