journal article·2010-07

Wet sulfur passivation of GaSb(100) surface for optoelectronic applications

E.V. Kunitsyna, T.V. L’vova, M.S. Dunaevskii, Ya.V. Terent’ev, A.N. Semenov, V.A. Solov’ev, B.Ya. Meltser, S.V. Ivanov, Yu.P. Yakovlev

Applied Surface Science· Volume 256· Issue 18
Publisher page

Abstract

Abstract A comparative analysis of the properties of the non-passivated and S-passivated GaSb(1 0 0) surfaces has been performed through PL, AFM and RHEED characterization. The samples treated with a 1 M Na2S aqueous solution demonstrate an increase in the 5 K PL intensity. According to AFM data, the annealing of the S-passivated GaSb(1 0 0) leads to the formation of the clean flat (1 0 0) surface. Moreover, after annealing the PL intensity of the S-passivated GaSb(1 0 0) surfaces decreases by 20%, whereas for the non-passivated samples it drops by more than a factor of 4. The method of wet sulfur passivation has shown great effectiveness in pre-epitaxial processing for LPE and MBE growth of the GaSb-related materials for optoelectronics.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Semiconductor Quantum Structures and Devices · Advanced Semiconductor Detectors and Materials · Semiconductor materials and devices

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