Thermally activated diffusion of impurities along a semiconductor layer Yoseph Abebe, Tibebe Birhanu, Lemi Demeyu, Mesfin Taye, Mulugeta Bekele and Yigermal Bassie Eur. Phys. J. B, 95 1 (2022) 9 Published online: 12 January 2022 DOI: 10.1140/epjb/s10051-021-00265-x