Enhanced Thermal Sensitivity of Silicon Nanoparticles Embedded in (Nano-Ag/)SiNx for Luminescent Thermometry

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• 作者：Yury V. Ryabchikov ; Vladimir Lysenko ; Tetyana Nychyporuk
• 刊名：Journal of Physical Chemistry C
• 出版年：2014
• 出版时间：June 12, 2014
• 年：2014
• 卷：118
• 期：23
• 页码：12515-12519
• 全文大小：370K
• 年卷期：v.118,no.23(June 12, 2014)
• ISSN：1932-7455

文摘

Steady-state photoluminescence of silicon nanoparticles embedded in solid-state (nano-Ag/)SiN_x thin films at above room temperature is studied and compared to silicon nanoparticles dispersed in low-polar liquids. Roles of local surface plasmons as well as general mechanisms responsible for the temperature-dependent photoluminescence are pointed out. Thermal sensitivities of photoluminescence spectral shape, maximum position, and full width at half-maximum are estimated and application of the (nano-Ag/)SiN_x layers as photoluminescent thermal screens is proposed.