Horiba's integrating sphere is a quantum yield and CIE measurement accessory for our Flurolog and FluoroMax fluorometers. Quanta–φ features a large 150 mm (6 inch) integrating sphere, unique bottom-loading solid sample drawer, electrical connection port for EL measurements, all controlled from a simple-to-use dedicated QY/colorimetry software. Combined with our highest sensitivity and flexibility fluorometers, Horiba's integrating sphere is finally the headache-free PL/EL QY solution you need.

Features:

• Large 150 mm (6 inch) sphere for higher accuracy and precision QY values
• Bottom-loading drawer for solid/powder samples, eliminating contamination
• Top-loading center-mounted liquid sample holder fits any standard 12 mm cuvette
• Wiring port for light-emitting devices and electroluminescence
• Complete, easy-to-use analysis package for quantum yields and chromaticity indices
• Disposable solid/powder cups with optional reusable quartz coverslips
• Usable with any detector mounted on any port of your fluorometer
• Instructional video tutorials, electronic user’s manual and on-line interactive help support

PLQY in NIR with Fluorolog-QM and K-Sphere

Demands for Photoluminescence Quantum Yield (PLQY)applications are growing, and one big area for the growth is in the Near Infrared (NIR) spectral region. NIR emission plays an important role in optical communications (optical signal generation and amplification), biomedical applications, development of efficient laser glasses, such as Nd³⁺ laser systems, solar energy concentrators, optoelectronics and many others. The overwhelming majority of these applications involve lanthanide ions, many of which emit in the NIR. PLQY measurements are critical in assessing optical efficiency and performance of devices based on such materials. This application note illustrates the use of the Fluorolog-QM-75-21 fluorescence system with an integrating sphere option for the determination of PLQY in the NIR spectral region for two different lanthanide-based materials.

All HORIBA spectrofluorometers equipped with integrating spheres are validated with two very specific standard samples, quinine sulfate and rhodamine, which are accepted PLQY reference materials in the scientific community. Instruments must pass the accepted PLQY values for these samples in the final QC process prior to shipment to a customer. The spectral correction curves used for detector wavelength correction and for PLQY are based on the method described below and they encompass the entire spectral range of the specific NIR detector selected with the instrument. Today there is no globally accepted NIR reference material for PLQY qualification, but we demonstrate below that the Fluorolog-QM is indeed an excellent choice for NIR PLQY measurements.

Application Notes：

PLQY in NIR with Fluorolog-QM and K-Sphere