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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Tantalum Capacitor As A Mis Structure: Transport Characteristics Temperature Dependencies
 Kuparowitz, Martin ; Kuparowitz, Tomáš
Temperature dependencies of a leakage current in normal mode are explained on the basis of a model, in which the solid state tantalum capacitor is considered as a metal-insulatorsemiconductor (MIS) heterostructure. The measurement was performed in temperature range from 105 to 155°C. Ohmic conductivity increases exponentially with increasing temperature with activation energy 0.94 eV. Tunneling voltage parameter and tunneling energy barrier decreases with increasing temperature, reaching values 0.45 to 0.26 eV.
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Germanium and tin nanoparticles encapsulated in amorphous silicon matrix for optoelectronic application
 Stuchlíková, The-Ha ; Remeš, Zdeněk ; Stuchlík, Jiří
The plasma enhanced chemical vapour deposition was combined with in situ deposition of Ge and Sn thin film by evaporation technique at surface temperature about 220 °C to form nanoparticles on the surface of hydrogenated silicon thin films to prepare diodes. Formation of nanoparticles was additionally stimulated by plasma treatment through a low pressure hydrogen glow discharge. The diodes based on PIN diode structures with and without the embedded Ge or Sn nanoparticles were characterized by temperature dependence of electrical conductivity, activation energy of conductivity, measurement of volt-ampere characteristics in dark and under solar illumination\n
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