Research Fluorometer

Description

The Department of Biological and Chemical Engineering at Aarhus University wishes to purchase a custom-made research fluorometer to determine the electro- and photoemission of inorganic, organic and inorganic-organic hybrid materials for various applications related to energy conversion and savings. Lot 1: Research problem: Inorganic nanoparticles can serve as efficient light conversion phosphors in solid state lighting as well as solar energy conversion. Inorganic-organic hybrid as well as organic materials can be used in the next generation of solid state lighting. For the development of all applications a precise materials’ characterization of the light emission under light- and electro-excitation are important. For that reason, we need a fluorometer that can satisfy the following needs: it has to allow measuring of photo- as well as electroluminescence of materials in the range of 290-1700 nm with a maximum of two detectors and no spectral gap. For photoexcitation the excitation power must be tunable. It must be possible to measure with time-resolution in the range 290-1700 nm, measurement of lifetimes from the picosecond to the second range with no gap in the detectable time range. It must be possible to measure the electroluminescence as well as photoluminescence quantum efficiencies with the same system. It must be possible to determine quantum yields with visible excitation in the near-infrared. It must be possible to measure in MCS (multi-channel scaler) as well as in TCSPC mode. It must be possible to carry out temperature-dependent measurements in the range from 77K to 500K. It must be possible to measure single crystals, powders, liquids, thin films – under ambient as well as protective atmosphere.