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Edinburgh Instruments Launches RM5 Raman Microscope 


Edinburgh Instruments is delighted to announce the launch of the new RM5 Raman Microscope to be manufactured in Scotland.

The RM5 is a fully automated Raman Microscope and is suitable for analytical and research purposes within the fields of Biosciences, Pharmaceuticals, Chemicals, Polymers and Nano-materials. Its truly confocal design is unique to the market and offers uncompromised spectral resolution, spatial resolution and sensitivity. 

With a compact footprint, it maximises available bench space in the laboratory and builds on the expertise of robust and proven building blocks, combined with modern optical design considerations with a focus on function, precision and speed.

Measuring the Phosphorescence Spectrum of a TADF Emitter


Materials exhibiting thermally activated delayed fluorescence (TADF) have attracted widespread research attention as a new generation of high-efficiency emitters for use in Organic Light Emitting Diodes (OLEDs). In a TADF OLED, triplet excitons are converted to singlet excitons through a thermally assisted reverse intersystem crossing which enables internal quantum efficiencies of 100% to be achieved.

In TADF research the spectra of the fluorescence and phosphorescence components of the emission must be measured in order to assign the origin of the component and calculate the energy splitting between the molecular levels. In this application note, the FLS1000 Photoluminescence Spectrometer equipped with a gated PMT detector and a VPL pulsed diode laser is used to measure the prompt fluorescence, delayed fluorescence and phosphorescence spectra of the TADF emitter CzDBA. The VPL series of pulsed diode lasers are a new range of variable pulse length lasers designed by Edinburgh Instruments that are optimised for measuring longer-lived emission such as upconversion, delayed fluorescence and phosphorescence.

Find out how the FLS1000 was used in this research in our latest application note.

What is Kasha's Rule?


Kasha’s Rule is named after the American molecular spectroscopist Michael Kasha and is one of the main principles in fluorescence spectroscopy.

In this article we explain what Kasha’s Rule is and how it is used within fluorescence spectroscopy

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