The laboratory is well equipped with a range of characterization instruments which include 2 probe stations, 2 semiconductor parameter analyzers, precision LCR meter, picoamperometer, 240 MHz dual-channel arbitrary/function generator, DC-5 MHz high voltage amplifier, 3 GHz digital oscilloscope, a large set of laser sources that covers the spectral range from ultraviolet to infrared, white light sources, Xenon arc-lamp (1000 W) coupled with a double grating monochromator, a grating spectrometer coupled with 2 nitrogen cooled CCD cameras in the visible and infrared spectral range up to wavelengths of 2300 nm, Perkin-Elmer photon counting module, and several mandatory workaday instruments (multimeters, voltage and current sources, etc.)
The probe station PM8 Suss MicroTech, 200 mm, (fig 1) is furnished with a semiconductor parameter analyzer Agilent B1500A and a precision LCR meter HP 4284A. This test station is mainly used to perform many electrical tasks such as current-voltage (I-V), capacitance-voltage (C-V), capacitance-frequency (C-f), and impedance spectroscopy measurements of micro/nanoelectronic devices.
The Alessi probe station is manly dedicated to electro-optical measurements, electroluminescence, in both DC and AC regime and some photovoltaic experiments.
The station is furnished with a semiconductor parameter analyzer HP 4145A, a dual-channel arbitrary function generator Tektronix AFG3252, a broad-band high-voltage amplifier Falco System, 3 GHz oscilloscope LeCroy 7300A. This forms the electrical part of the station.
The optical part of the station includes a grating spectrophotometer SpectraPro 2300i (with visible CCD camera Spec-10 256E and infrared CCD camera OMA V InGaAs 1024) and Perkin-Elmer photon counting module with multichannel scaler SR 430.
Electroluminescence spectra of the light emitting device and light emission intensity are collected with the grating spectrometer. A single photon counting module is used in electroluminescence measurements that require a high sensitivity and in time-resolved electroluminescence measurements with the resolution of up to 5 ns.