Metallic contacts on porous silicon layers

Stable aluminium ohmic contact to surface modified porous silicon

“…Fig. 6 clearly shows that Al contact to unmodified PS is Schottky by nature that is also supported by the literature [8][9][10]14] and the contact is ohmic after Pd surface modification. The J-V measurements were also conducted with Au contact under the identical condition to verify that Au gives rectifying contact, as expected, even after Pd modification.…”

“…There are also reports on metallic contacts to PS using Au, In, Au-In, In-Sn, Al, etc. and all the contacts showed Schottky behaviour [10]. Electroless Ni deposition was studied for getting metal contact to PS and an ohmic behaviour was observed only for low bias voltages [11].…”

Nanocrystalline Porous Silicon

“…Martin Palma and co-workers (Martin-Palma et al, 1999) reported the same for the Al-PS-Si-Al sandwich structure, which showed rectifying behavior even after prolonged exposure to the atmosphere. There are also reports on metallic contacts to PS using Au, In, Au-In, In-Sn, Al etc and all the contacts showed Schottky behavior (Angelescu & Kleps, 1998). Electroless Ni deposition was studied for getting metal contact to PS and an Ohmic behaviour was observed only for low bias voltages.…”

The Mechanism of Metal-Assisted Etching of Silicon

“…The metal alloys like Au-In, In-Sn, and so on showed rectifying behavior (Angelescu and Kleps 1998). The alloyed PtSi/porous Si contact shows a good ohmic characteristic with a low contact resistance (Ichinohe et al 1996) but the PtSi/PSi/PtSi structure produces a nonlinear relation for carrier transport as confirmed Downloaded by [United Arab Emirates University ] at 03:54 27 June 2016 by I-V curve measurement (Banihashemian et al 2010).…”

“…Most of the reports available on gold, copper, palladium, indium, and titanium as contact metals to PSi are found rectifying (Han et al 1994;Jeske et al 1995;Simons et al 1995;Diligenti et al 1996;Ichinohe et al 1996;Angelescu and Kleps 1998;Matsumoto et al 1998;Skryshevsky et al 1998;Slobodchikov et al 1998Slobodchikov et al , 1999Lue et al 1999;Bhattacharya et al 2000;Vikulov et al 2000;Ghosh et al 2002a;Rabinal and Mulimani 2007;Gallach et al 2012). The metal alloys like Au-In, In-Sn, and so on showed rectifying behavior (Angelescu and Kleps 1998).…”