Development of a Betavoltaic Cell Based on TiO2 Nanotubes and Radioisotope Ni63

Titanium dioxide nanotubes are an innovative and promising material in micro- and nanoelectronics. Using electrochemical anodizing, vertically oriented TiO
2
nanotubes of various morphologies were synthesized, and the features of their modification were investigated. A betavoltaic cell (BVС) was created, using Ni
⁶³
and modified TiO
2
-nanotubes, thereby demonstrating the output electrical characteristics applicable to the study of microelectronic elements miniaturization (Uoc = 0,2 V; Isc = 12 nA•cm
^-2
).