Title :
Performance study of bulk semi-insulating InP radiation detectors with different electrode metallizations
Author :
B. Zat´ko;F. Dubecky;O. Prochazkova;V. Necas
Author_Institution :
Institute of Electrical Engineering, Slovak Academy of Sciences, D?bravsk? cesta 9, SK-841 04 Bratislava, Slovakia. email: Bohumir.Zatko@savba.sk
Abstract :
This work describes the study of three different electrode metallizations with the aim to form the Schottky barrier contact. As a substrates bulk LEC SI InP grown by Fe and Fe+Zn co-doping wafers are used. Results of the study show that no one of used metallizations performs expected blocking behaviour. However detectors with Ti/Pt/Au metallization attained a relatively good energy resolution of 7.0 keV (in FWHM) and the charge collection efficiency higher than 83% for 122 keV y-photons at lowered temperature of 255 K
Keywords :
"Indium phosphide","Radiation detectors","Electrodes","Metallization","Pulse measurements","Energy resolution","Plasma measurements","Fabrication","Gold alloys","Contacts"
Conference_Titel :
Advanced Semiconductor Devices and Microsystems, 2006. ASDAM ´06. International Conference on
Print_ISBN :
1-4244-0369-0
DOI :
10.1109/ASDAM.2006.331179
