What is Thermally Activated Delayed Fluorescence? (TADF)

Halide perovskites are a promising class of materials for a wide variety of optoelectronic applications such as photovoltaics, light emitting diodes, lasers and optical sensing. They have received widespread attention due to their many attractive synthetic and photophysical properties, such as solution processability, high tunability, long charge carrier lifetimes and hi...

Hybrid halide perovskite has recently emerged as a new class of low cost semiconductor for optoelectronic applications. They have received widespread attention as an absorber in photovoltaic cells, where they have achieved a remarkable increase in solar cell efficiency; from 9% in 2012 to 21% in 2017. Despite this high efficiency, further research into the elementary phy...

One of the most powerful techniques to understand the behaviour and performance of electrical devices is electroluminescence spectroscopy. In electroluminescence (EL) spectroscopy a working device, such as a light emitting diode or solar cell, is placed inside a spectrometer and the light emission properties of the device studied. EL spectroscopy can be performed as eith...