Keywords: quantum efficiency, absolute quantum efficiency, photoluminescence quantum efficiency, Luminescent quantum efficiency (PLQY), internal quantum efficiency (IQE), quantum efficiency stability test, excitation wavelength dependent quantum efficiency, blue light absorption ratio, attenuation ratio, spectral power distribution λ, radiant flux
▌ Product introduction
The HIYIEL-PL photoluminescence measurement system is an important member of the HiOE comprehensive luminescence measurement platform. Together with the HIYIEL-EL absolute electroluminescence measurement system (please contact the Sales officer), the HiYIEL-PL photoluminescence measurement system provides the industry with a complete luminescence sample measurement solution. The HiYield-PL system consists of a series of corresponding measurement components, including excitation light source, monochromator, spectral measurement module, etc. By using the distribution characteristics of the system components, the measurement system can be flexibly constructed for different types of samples, and can also be adapted to a variety of measurement scenarios, such as glove box measurement. The HiYield-PL measurement system has the following main functions :
1) Using PL method and integrating sphere, accurately measure the efficiency parameters, radiosity parameters, chroma parameters, etc.;
2) Measurement of high sensitivity, high dynamic range and high SNR;
3) A variety of measurement modes are available: single excitation wavelength quantum efficiency, excitation wavelength dependent quantum efficiency, quantum efficiency stability test;
4) Fully automatic one-key test.
▌ Product characteristics
□ Flexible modular design, can be suitable for various measurement scenarios;
□ Professional research-grade algorithm support, accurate PLQY data;
□ Compact machine, can be placed in the glove box for nitrogen atmosphere test;
□ Optional automatic sampling system, reduce human error, improve measurement repeatability;
□ Software automatic process operation, one-click measurement of all parameters.
▌ Function module
Photoluminescence quantum efficiency measurement system |
Model number | HiYield-PL |
Specification configuration | argument |
Excitation optical module (xenon lamp) | Light source: 150W xenon lamp |
Excitation wavelength range: 250-700nm |
Optical bandwidth: 2nm-5nm |
Stability: 3% |
Excitation wavelength electric control |
Slit electric control |
Electric shutter control |
|
Excitation Optical Module (LED) | Excitation wavelength: 365 nm, 405 nm, 450 nm, 520 nm, 635 nm, etc |
Power adjustment range: 0-100% |
Excitation power:3.5 mW@365 nm, 5 mW@405 nm, 2.5 mW@450 nm |
Stability: ≤0.5% |
Spectrum test module | Wavelength range: 350-1100 nm; 900-1700nm Optional |
SNR: 1000:1 |
Integration time: 3.8ms - 10s |
Dynamic range :3.4 × 106(system); A single acquisition is 1,300:1 |
Stray light: < 0.05%@600nm; <0.10% @ 435 nm |
Optical resolution: ~2.5 nm(FWHM) |
Test functions and parameters | Measurement mode | Single excitation wavelength quantum efficiency |
Excitation wavelength depends on quantum efficiency |
Quantum efficiency stability test |
Functional parameter category | Efficiency parameters: luminous quantum efficiency (PLQY), internal quantum efficiency (IQE), excitation wavelength dependent quantum efficiency, blue light absorption ratio, decay ratio. |
Radiometry: spectral power distribution (λ), radiant flux (Radiance), photon number (Lumen), optical efficiency (K-value), peak Wavelength (PeakWavelength), Central wavelength (Central Wavelength), etc. |
Colorimetry: CIE colorimetric coordinates, Correlation Color temperature (CCT), MK-1 (mred), color rendering index (CRI), RGB color values, etc. |
Attenuation parameters: PLQY-t, λ-t, Radiance-t, Lumen-t, K-t, CIE-t, CCT-t, CRI-t, etc. |
Other parameters t, etc. | Integrating sphere dimension | 1.5，3.3，5，6inch |
Integral ball inner coating | BaSO4、PTFE、Spectraflect、Spectralon |
Fiber core diameter | 200μm, 600μm, 1000 μm |
jig | Customized according to customer sample size: colorimetric dish fixture, sheet fixture, powder carrier and other special fixture. |
▌ Product application
Organic metal complexes, fluorescent probes, dye-sensitized PV materials, OLED materials, LED phosphors, films, powders, liquids and other types of photoluminescence samples.
