février 4, 2019
In this application note, emission properties of a phosphorescent organic light emitting diode (PhOLED) are investigated using an FS5 Spectrofluorometer equipped with the electroluminescence accessory. The spectrum and chromaticity coordinates of the PhOLED emission are measured and the triplet lifetime determined using time-resolved spectroscopy.
septembre 26, 2018
Many upconversion luminescent materials emissive properties change as a function of temperature, pressure, or the presence of a chemical species. Such properties have long been exploited in the development of luminescence-based sensors. In this application note, we discuss how the use of luminescence thermometry changes the emissive properties of upconversion materials.
juillet 12, 2018
One of the most powerful techniques to understand the behaviour and performance of electrical devices is electroluminescence spectroscopy. In this application note the FLS1000 Photoluminescence Spectrometer is used to investigate the emission properties of a phosphor coated indium gallium nitride white light LED using both steady state and time-resolved electroluminescence spectroscopy.
juin 18, 2018
One of the most important photophysical parameters of perovskites for optoelectronic applications is the photoluminescence quantum yield (PLQY). In this application note the temperature dependence of the PLQY of CsPbBr3 perovskite is investigated using the FLS1000 Photoluminescence Spectrometer equipped with the Cryosphere accessory.
février 23, 2018
Halide perovskite photovoltaic cells have attracted tremendous attention over recent years due to the rapid rise achieved in solar cell efficiencies. In this application note time-resolved photoluminescence spectroscopy is shown to be a powerful tool for investigating and optimising the behaviour of halide perovskites through the measurement of charge carrier lifetimes.
décembre 12, 2017
A powerful method for determining the kinetics of a reaction is by monitoring the concentration of the reactants or products over time using stopped-flow fluorescence spectroscopy. In this application note, the kinetics of NATA quenching by QBS are determined using the FLS1000 Photoluminescence Spectrometer equipped with the stopped-flow accessory.
juin 12, 2017
Persistent luminescence, commonly called afterglow, is long-lasting visible emission over several hours after ultraviolet excitation. It has many applications; ranging from glow-in-the-dark signage to in-vivo imaging for disease diagnosis and treatment. In this application note, the persistent luminescence kinetics of a doped strontium aluminate phosphor are characterised using the FLS1000 Photoluminescence spectrometer
janvier 14, 2016
Organic solar cells are promising candidates for utilising solar energy due to their adjustable chemical structure and ease of processing for large area photovoltaic panels. In this application note, the extensively studied organic solar cell blend P3HT: PCBM is characterised via steady-state and time-resolved photoluminescence and electroluminescence spectroscopy .