October 8, 2019

Preparation and Characterization of Mixed Halide MAPbI3−xClx Perovskite Thin Films by Three‐Source Vacuum Deposition

Authors: Azin Babaei, Wiria Soltanpoor, Maria A. Tesa-Serrate, Selcuk Yerci, Michele Sessolo, Henk J. Bolink

September 13, 2019

Kinetics of Photocatalysis Reactions Studied by Transient Absorption Spectroscopy

Photocatalysis is the rate increase of a chemical reaction by light, often in the presence of a catalyst that starts the reaction upon irradiation. Photocatalysts are typically semiconducting metal oxides such as ZnO, Fe2O3 or TiO2 which are employed as particles in solution. When absorbing light, these materials are able to generate electrons and holes which go on to react with chemical species on their surface. Find out how our LP980 Spectrometer was used in this recent application note.

LP980

August 22, 2019

Self-Assembly for Two Types of J-Aggregates: cis-Isomers of Dye on the Carbon Nanotube Surface and Free Aggregates of Dye trans-Isomers

Authors: Petro Lutsyk*Yuri PiryatinskiMykola ShanduraMohammed AlAraimiMaria TesaGeorgios E. ArnaoutakisAmbrose Ashwin MelvinOleksiy KachkovskyAnatoly VerbitskyAleksey Rozhin

This scientific publication discusses the first time formation of resonantly coherent J-aggregates on carbon nanotubes with highly efficient energy transfer from the aggregates to the nanotubes.

June 25, 2019

Fluorescence, Delayed Fluorescence and Phosphorescence Spectra of a TADF Emitter Measured using the FLS1000 with a VPL laser and Gated PMT Detector

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.1

FLS1000

June 3, 2019

Dye-Sensitized Solar Cells (DSSCs); Understanding and Optimizing Energy and Electron Transfers Through Transient Absorption Data

Application note: DSSCs - Understanding and Optimizing Energy and Electron Transfers Through Transient Absorption Data.

LP980

May 15, 2019

Photoluminescence Spectroscopy of Carbon Dots

Download our recent application note on the Photoluminescence Spectroscopy of Carbon Dots.

FLS1000

April 26, 2019

Identifying Thermally Activated Delayed Fluorescence (TADF) using an FS5 Spectrofluorometer

In this application note find out how an FS5 spectrofluorometer is used to identify Thermally Activated Delayed Fluorescence (TADF)

FS5

February 4, 2019

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.

FS5 FLS1000

January 14, 2019

Proton-Coupled Electron Transfer (PCET); Spectral and Kinetic Transient Absorption Analysis of Acridine Orange with Tri-Tert-Butylphenol

Understanding fundamental photo-induced proton-coupled electron transfer (PCET) reactions of small molecules is central to research ranging from solar fuels, biological signalling, and organic electronics. By combining spectral and kinetic information of the photo-generated excited states and radical species present, researchers are able to elucidate the PCET reaction mechanisms involved in these applications. The Edinburgh Instruments LP Transient Absorption Spectrometer is the world’s only commercial system capable of recording instantaneous spectral information utilising an ICCD camera, while then easily being able to switch to measuring kinetic data on a PMT detector – all under software control. It was used to carry out the research in this application note.

LP980

December 19, 2018

Tuning the Photoluminescence of Graphene Oxide

Graphene has received tremendous attention within both the scientific community and industry due to its remarkable electrical, thermal and mechanical properties. In this application note, the photoluminescence properties of graphene oxide are investigated using an FLS1000 Photoluminescence Spectrometer equipped with double excitation and emission monochromators and an infrared PMT.

FLS1000 FS5