Skip to main navigation Skip to search Skip to main content

Characterization of hazy morphology on alinp/gaas epitaxial wafers grown by organometallic vapor phase epitaxy

  • Hongyu Peng
  • , Tuerxun Ailihumaer
  • , Yafei Liu
  • , Balaji Raghothamachar
  • , Michael Dudley
  • Stony Brook University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

6-inch AlInP/GaAs epitaxial wafers grown by organometallic vapor phase epitaxy (OMVPE) technique are being developed for light emitting diodes (LEDs) applications. Defects such as dislocations and inclusions have been characterized by synchrotron X-ray topography. Burgers vector and line direction of the dislocations were determined by ray-tracing simulation. Moreover, epilayer surface of the samples grown under higher pressure reveals a hazy morphology, which is rougher compared to regular clear regions. Synchrotron X-ray topographs of the hazy regions showed blurred contrast, indicating disordered lattice arrangement. Internal structure of the hazy regions was studied by reciprocal space mapping (RSM), where weakened and broadened peaks around the clear epilayer peak were observed using 004 reflection, indicating continuously varying strain and tilt between the hazy region and the clear region.

Original languageEnglish
Title of host publicationPRiME 2020
Subtitle of host publicationJoint Symposium: State-of-the-Art Program on Compound Semiconductors 63 (SOTAPOCS 63) -and- GaN and SiC Power Technologies 10
EditorsT. Anderson, J. K. Hite, R. P. Lynch, C. O'Dwyer, E. A. Douglas, Y. Zhao, M. Dudley, B. Raghothamachar, M. Bakowski, N. Ohtani
PublisherIOP Publishing Ltd
Pages109-116
Number of pages8
Edition6
ISBN (Electronic)9781607689010
DOIs
StatePublished - 2020
EventPacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200 - Honolulu, United States
Duration: Oct 4 2020Oct 9 2020

Publication series

NameECS Transactions
Number6
Volume98
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferencePacific Rim Meeting on Electrochemical and Solid State Science 2020, PRiME 200
Country/TerritoryUnited States
CityHonolulu
Period10/4/2010/9/20

Fingerprint

Dive into the research topics of 'Characterization of hazy morphology on alinp/gaas epitaxial wafers grown by organometallic vapor phase epitaxy'. Together they form a unique fingerprint.

Cite this