Room temperature operation of GaSb-based resonant tunneling diodes by prewell injection
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We present room temperature resonant tunneling of GaSb/AlAsSb double barrier resonant tunneling diodes with pseudomorphically grown prewell emitter structures comprising the ternary compound semiconductors GaInSb and GaAsSb. At room temperature, resonant tunneling is absent for diode structures without prewell emitters. The incorporation of Ga0.84In0.16Sb and GaAs0.05Sb0.95 prewell emitters leads to room temperature resonant tunneling with peak‐to‐valley current ratios of 1.45 and 1.36 , respectively. The room temperature operation is attributed to the enhanced Γ ‐L‐valley energy separation and consequently depopulation of L‐valley states in the conduction band of the ternary compound emitter prewell with respect to bulk GaSb.
Pfenning , A , Knebl , G , Hartmann , F , Weih , R , Bader , A , Emmerling , M , Kamp , M , Höfling , S & Worschech , L 2017 , ' Room temperature operation of GaSb-based resonant tunneling diodes by prewell injection ' Applied Physics Letters , vol 110 , no. 3 , 033507 . DOI: 10.1063/1.4973894
Applied Physics Letters
© 2017 the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at apl.aip.scitation / https://dx.doi.org/10.1063/1.4973894
DescriptionThe authors are grateful for financial support by the state of Bavaria, the German Ministry of Education and Research (BMBF) within the national project HIRT (FKZ 13XP5003B).
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