Year: 2016
Type: article
Abstract: A junction of lattice-matched cubic semiconductors ZnTe and PbSe results in a band alignment of type I so that the narrow band gap of PbSe is completely within the wider band gap of ZnTe. The valence band offset of 0.27 eV was found, representing a minor barrier during injection of holes from PbSe into ZnTe. Simple linear extrapolation of the valence band edge results in a smaller calculated band offset, but a more elaborate square root approximation was used instead, which accounts for parabolic bands. PbSe was electrodeposited at room temperature with and without Cd2+ ions in the electrolyte. Although Cd adsorbs at the surface, the presence of Cd in the electrolyte does not influence the band offset.
Source: AIP Advances
DOI: 10.1063/1.4955092
Authors: Igor Konovalov, Vitali Emelianov, Ralf Linke
Institutions: Technische Universität Ilmenau, Innovent
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,350
Funder: Carl-Zeiss-Stiftung
OpenAlex ID: W2467473514