A Dual-Functional Platform for Plant Cultivation and Wide-Range Optical Thermometry Based on Vibration Sidebands
Ceramics international(2023)
摘要
Due to the Sb5+ substituted by Mn4+ at the 2c position of the [SbO6] octahedron, novel Sr2ScSbO6: Mn4+ (SSSO: Mn4+) phosphors showcased a broad excitation band in the range of 200-600 nm. In this respect, an intense far -red emission peak originating from the 2Eg -> 4A2g spin-forbidden transition for SSSO: Mn4+ phosphors was observed under the 345 nm excitation. Furthermore, the temperature-dependent emission spectra exhibited excellent thermal stability (70.106% emission intensity remained at 423 K relative to 298 K). The feasibility of the fabricated LED device for potential plant cultivation was also examined. Furthermore, the different tem-perature reactions for anti-Stokes and Stokes sidebands of the SSSO: Mn4+ phosphors endowed the constructed luminescence intensity ratio (LIR) optical thermometry with an excellent relative sensitivity of 1.21% K-1@83 K in a wide-range (23-648 K). Finally, the sensing sensitivity based on the temperature-dependent decay curves was also analyzed.
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关键词
Plant growth,Vibrational sidebands,Lifetime,Sensor sensitivity
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