Time-Resolved Luminescence Nanothermometry with Nitrogen-Vacancy Centers in Nanodiamonds

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• 作者：Yan-Kai Tzeng ; Pei-Chang Tsai ; Hsiou-Yuan Liu ; Oliver Y. Chen ; Hsiang Hsu ; Fu-Goul Yee ; Ming-Shien Chang ; Huan-Cheng Chang
• 刊名：Nano Letters
• 出版年：2015
• 出版时间：June 10, 2015
• 年：2015
• 卷：15
• 期：6
• 页码：3945-3952
• 全文大小：420K
• ISSN：1530-6992

文摘

Measuring temperature in nanoscale spatial resolution either at or far from equilibrium is of importance in many scientific and technological applications. Although negatively charged nitrogen-vacancy (NV^{鈥?/sup>) centers in diamond have recently emerged as a promising nanometric temperature sensor, the technique has been applied only under steady state conditions so far. Here, we present a three-point sampling method that allows real-time monitoring of the temperature changes over 卤100 K and a pump鈥損robe-type experiment that enables the study of nanoscale heat transfer with a temporal resolution of better than 10 渭s. The utility of the time-resolved luminescence nanothermometry was demonstrated with 100 nm fluorescent nanodiamonds spin-coated on a glass substrate and submerged in gold nanorod solution heated by a near-infrared laser, and the validity of the measurements was verified with finite-element numerical simulations. The combined theoretical and experimental approaches will be useful to implement time-resolved temperature sensing in laser processing of materials and even for devices in operation at the nanometer scale.}