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Title: Robust optical properties of sandwiched lateral composition modulation GaInP structure grown by molecular beam epitaxy

Double-hetero structure lateral composition modulated (LCM) GaInP and sandwiched LCM GaInP having the same active layer thickness were grown and their optical properties were compared. Sandwiched LCM GaInP showed robust optical properties due to periodic potential nature of the LCM structure, and the periodicity was undistorted even for thickness far beyond the critical layer thickness. A thick LCM GaInP structure with undistorted potential that could preserve the properties of native LCM structure was possible by stacking thin LCM GaInP structures interspaced with strain compensating GaInP layers. Furthermore, the sandwiched structure could be beneficial in realizing the LCM structure embedded high efficiency solar cells.
ORCiD logo [1] ;  [2] ; ORCiD logo [3] ;  [2] ;  [2] ;  [2] ;  [2]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. Gwangju Institute of Science and Technology, Gwangju (South Korea)
  3. Indian Institute of Space Science and Technology, Trivandrum (India)
Publication Date:
Report Number(s):
Journal ID: ISSN 0003-6951
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 109; Journal Issue: 26; Journal ID: ISSN 0003-6951
American Institute of Physics (AIP)
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
14 SOLAR ENERGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; photoluminescence; solar cells; optical properties; semiconductor growth; stress relaxation
OSTI Identifier: