Small-signal deep level transient spectroscopy on hydrogenated amorphous silicon based metal/insulator/semiconductor structures

1998 ◽  
Vol 84 (12) ◽  
pp. 6906-6910 ◽  
Author(s):  
Ilja Thurzo ◽  
Vojtech Nádaždy ◽  
Satoshi Teramura ◽  
Rudolf Durný ◽  
Minoru Kumeda ◽  
...  
2015 ◽  
Vol 66 (6) ◽  
pp. 323-328 ◽  
Author(s):  
Ladislav Harmatha ◽  
Miroslav Mikolášek ◽  
L’ubica Stuchlíková ◽  
Arpád Kósa ◽  
Milan Žiška ◽  
...  

Abstract The contribution is focused on the diagnostics of structures with a heterojunction between amorphous and crystalline silicon prepared by HIT (Heterojunction with an Intrinsic Thin layer) technology. The samples were irradiated by Xe ions with energy 167 MeV and doses from 5 × 108 cm−2 to 5 × 1010 cm−2. Radiation defects induced in the bulk of Si and at the hydrogenated amorphous silicon and crystalline silicon (a-Si:H/c-Si) interface were identified by Deep Level Transient Spectroscopy (DLTS). Radiation induced A-centre traps, boron vacancy traps and different types of divacancies with a high value of activation energy were observed. With an increased fluence of heavy ions the nature and density of the radiation induced defects was changed.


1991 ◽  
Vol 219 ◽  
Author(s):  
U. Besi Vetrella ◽  
J. D. Cohen

ABSTRACTCapacitance vs. temperature, deep-level transient spectroscopy (DLTS), and transient photocapacitance spectroscopy have been used to investigate the amorphous-crystalline silicon interface region of a device made of hydrogenated amorphous silicon deposited on a lightly doped n-type crystalline silicon.By comparing our results between substrates with and without oxide contamination with those in a earlier study, we have been able to correlate the effects of substrate preparation on the density of interface states.


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