Adsorption and desorption of the surfactant Sb on GaInP grown by organometallic vapor phase epitaxy

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Publication Type Journal Article
School or College College of Engineering
Department Electrical & Computer Engineering; Materials Science & Engineering
Creator Stringfellow, Gerald B.; Shurtleff, James Kevin
Other Author Lee, R.T.
Title Adsorption and desorption of the surfactant Sb on GaInP grown by organometallic vapor phase epitaxy
Date 2000
Description It has been determined that ordering has a profound effect on the bandgap energy of many compound semiconductor alloys. Therefore, ordering must be controlled for devices such as solar cells, light emitting diodes and diode lasers. Since ordering depends on the surface properties during organometallic vapor phase epitaxy (OMVPE), the ability to control the surface has been shown to be important for controlling ordering and for producing heterostructures and quantum wells. However, perhaps equally as important as the affect of ordering on the bandgap is the fundamental information that it can provide about the surface during growth. This paper reports on the use of time dependent surface photoabsorption (SPA) measurements to determine the rate of change in the P dimer concentration when TESb is added to and removed from the reactor. In particular, the time constants for the transients are presented and compared with the Langmuir model for adsorption and desorption of the surfactant. Transients in the Sb surface concentration were also indirectly determined from secondary-ion mass spectroscopy (SIMS) measurements on a GaInP heterostructure where TESb was added during growth of one of the layers.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Subject Time dependent surface photoabsorption (SPA); Compound semiconductor alloys
Language eng
Bibliographic Citation Shurtleff, J.K., Lee, R.T., & Stringfellow, G.B. (2000). "Adsorption and desorption of the surfactant Sb on GaInP grown by organometallic vapor phase epitaxy.
Rights Management (c) Institute of Electrical and Electronics Engineers (IEEE)
Format Medium application/pdf
Format Extent 430,160 Bytes
Identifier ir-main,543
ARK ark:/87278/s6g73xvs
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 702584
Reference URL https://collections.lib.utah.edu/ark:/87278/s6g73xvs
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