The non-crystalline and crystalline phases of the PG and GC samples were identified by XRD (MiniFlex 600 RIGAKU) with nickel-filtered Cu Kα radiation (λ = 0.15418 nm) in the 2θ range from 10° to 80°. In order to characterize the morphologies of the GC samples, TEM (JEM-2010) and SAED were employed. Furthermore, STEM operated in the HAADF mode was also performed. Moreover, the UC emission spectra and decay curves were conducted with an Edinburgh Instruments FS5 spectrofluorometer, equipped with a continuous and pulsed 980 nm laser. In order to record temperature-dependent UC emission spectra, the GC sample was loaded onto a copper host equipped with a temperature controller (OMRON E5CC-800). The temperature range was controlled from 303 K to 563 K, utilizing a type-K thermocouple and a heating tube.
E5cc 800
Manufactured by Omron
The E5CC-800 is a compact and versatile temperature controller designed for a wide range of industrial applications. It features a large, easy-to-read LED display and provides basic temperature control functionality.
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2 protocols using e5cc 800
1
Structural and Optical Characterization of Upconverting Phosphors
2
Temperature-Dependent Optical Characterization
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The crystal structure of the sample was tested using a Rigaku UItimate IV X-ray diffractometer (Cu/Kα radiation) with a scanning step of 0.02° in the 2θ range from 20° to 70°. The excitation spectrum, emission spectrum, and fluorescence lifetime of the sample were tested using an Edinburgh FLS1000 fluorescence spectrometer with a 450 W ozone-free xenon arc lamp that covers a range of 230 to 1000 nm for steady-state measurements. The time resolution of the fluorescence spectrometer is 1e-9s (nanosecond level), which can meet the measurement range of fluorescence attenuation. To explore the dependence between the optical properties and temperature changes, temperature control was realized using a temperature controller (OMRON E5CC-800) with a type-K thermocouple and a heating tube.
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