Laboratory of photoluminescence spectroscopy
Low temperature photoluminescence (PL) spectroscopy enables efficient investigation of the electronic structure of semiconductor materials and structures.
PL spectrometer in IPE consists of a Sumitomo optical He closed cycle cryostat coupled with THR 1000 monochromator (Jobin-Yvon) and FTIR spectrometer Nicolet 5700.
The PL setup enables sensitive and high resolution measurements in the following spectral (300-9000 nm) and temperature (3.5-300 K) ranges.
Equipment:
Grating spectrometer
- Grating spectrometer based on the THR 1000 monochromator (Jobin-Yvon).
- Equipped with cooled GaAs photocatode photomultiplier and LN cooled high-purity Ge photodiode (Edinburg Instruments EI-L detection system).
- Enables measurements in the spectral range 300 - 1700 nm.
FTIR spektrometer
- A purposely modified FTIR Nicolet 5700 spectrometer.
- Allows collection of PL spectra in the enhanced range of 700-9000 nm (14300-1100 cm-1).
The following light sources are available for excitation:
He-Ne laser, HNA 181, Zeiss Jena, excitation wavelength 632.8 nm
Ar ion laser Coherent Innova 300, excitation wavelength 514.5, 488 a 457.9 nm
He-Cd laser Kimmon IK3552R-G, excitation wavelength 325 nm
Semiconductor lasers of various wavelengths are available together with DPSSL Nd-YAG laser (1064 nm) and its SHG version emitting at 532 nm.
