LED's and Displays Archives | Edinburgh Instruments

ResourcesLED's and Displays

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Application NotesLED's and Displays

Application Note: Electroluminescence and Photoluminescence Spectroscopy of a Phosphorescent Organic Light Emitting Diode (PhOLED)

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.
Application NotesLED's and DisplaysNanotechnologyPhotovoltaic / Solar Cells

Photophysical Characterisation of Perovskite Quantum Dots

Perovskite Quantum Dots are a promising new class of light emitters. In this application note a complete photophysical characterisation, comprising of absorption spectra, photoluminescence spectra, photoluminescence lifetime, and quantum yield of two perovskite quantum dots is carried out using the versatile FS5 Spectrofluorometer.
Application NotesLED's and Displays

Application Note: Determination of Chromaticity Coordinates and Bandgaps of III-V LEDs Using Electroluminescence Spectroscopy

Modern LEDs are efficient, bright and reliable and are one of the most versatile and widely used light sources with an ever increasing number of applications. In this application note the FS5 Spectrofluorometer, equipped with the electroluminescence accessory, is used to investigate the emission properties of four type III-V LEDs and determine their bandgaps and chromaticity coordinates.
Application NotesLED's and Displays

Application Note: Time-Resolved Electroluminescence Spectroscopy of a White Light Emitting Diode

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.
Application NotesLED's and DisplaysPhotovoltaic / Solar Cells

Application Note: Temperature-Dependent Absolute Photoluminescence Quantum Yield (PLQY) Measurements of a Halide Perovskite

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.
Application NotesLED's and Displays

Application Note: Photoluminescence Spectroscopy of a White-Light Emitting Perovskite

Hybrid halide perovskite semiconductors show excellent promise as a new generation of solid state light emitters. In this application note the CIE colour coordinates and the excited state lifetimes of a promising white light emitting perovskite are measured using the FLS1000 Photoluminescence Spectrometer.
Application NotesBiology / Life ScienceLED's and DisplaysPhysical Chemistry

Application Note: Kinetics of Persistent Luminescence Phosphors

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
Application NotesLED's and DisplaysNanotechnologyPhysical Chemistry

Application Note: Temperature Dependence of Phosphors via Photo-and Thermo-Luminescence

Inorganic phosphors are widely used in lighting and display technologies and their emission properties are commonly characterised using photoluminescence spectroscopy. Phosphors generally operate at elevated temperatures and it is therefore important to understand how the emission properties change with temperature. In this application note, the temperature dependence of BAM:Eu phosphor is studied using the FLS980 Photoluminescence Spectrometer.