tender enquiry of steady-state and time-resolved photoluminescence spectrometer , steady-state and time-resolved photoluminescence spectrometer , steady-state and time-resolved photoluminescence spectrometer standard configuration 1. optics:all-reflective for wavelength-independent focus with high brightness (small focus) at the sample 2. light source: 150/450 w cw ozone-free xenon arc lamp with integrated power supply. 450w xenon lamp is preferable 3. monochromators:czerny-turner with plane gratings for accurate focus at all wavelengths and minimum stray light 4. emission range: 200 nm to 850 nm or more 5. excitation grating: 1200 line/mm 300 nm blaze 6. emission grating: 1200 line/mm 400 nm blaze 7. wavelength accuracy: +/- 0.5 nm or better 8. minimum step size: 0.1 nm or better 9. slits: computer controlled, continuously adjustable 10. standard detection: multimode: photon counting or single photon counting, pmt-900, cooled and stabilized, 200 nm - 850 nm (or better) 11. signal-to-noise ratio:>10,000:1 (sqrt) / >35,000:1 (fsd) or better 12. light source for phosphorescence measurement: microsecond xenon flashlamp or variable pulse light sourceswith pulse width 50 ns or smaller (preferably). 13. phosphorescence time range: <5? to 10 seconds or better with appropriate time-resolved accessories. 14. reference detector: uv-enhanced silicon photodiode, 200 nm - 850 nm or better 15. pair or 10mm quartz cuvette 16. solid sample and thin film holder 17. emission filters 340nm, 370nm, and >450nm with holder 18. appropriate software upgrade configuration 1. the system should be compatible with future tscps electronics updates and supporting light sources with a time range from sub-picosecond to microsecond. 2. the system should be compatible with future cryostat updates for low-temperature studies from 77k to 400k or better. 3. integrating sphere update for photoluminescence quantum yield. warranty: 3 years.