title: Ultra-small Ge1-xSnxquantum dots with visible photoluminescence.
abstract: Ge1-xSnxalloy quantum dots (QDs) were synthesized with sizes ranging from 1-3 nm exhibiting visible orange-red photoluminescence. Composition dependent optical properties were characterized and supported by theoretical calculations. Structural analysis suggests the QDs are diamond cubic phase, characteristic of Ge1-xSnxthin films and nanocrystals (NCs) reported to date.
authors.affiliation: Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, USA. iuarachchige@vcu.edu.
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Alan Esteves
authors.affiliation: Department of Electrical and Computer Engineering, Virginia Commonwealth University, Richmond, Virginia 23284, USA.
authors.forename: Shopan
authors.initials: S
authors.lastname: Hafiz
authors.affiliation: Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, USA.
authors.forename: Denis O
authors.initials: DO
authors.lastname: Demchenko
authors.affiliation: Department of Electrical and Computer Engineering, Virginia Commonwealth University, Richmond, Virginia 23284, USA.
authors.forename: Ümit
authors.initials: Ü
authors.lastname: Özgür
authors.affiliation: Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, USA. iuarachchige@vcu.edu.
authors.forename: Indika U
authors.initials: IU
authors.lastname: Arachchige