A Stress‐Free and Textured GaP Template on Silicon for Solar Water Splitting

This work shows that a large‐scale textured GaP template monolithically integrated on Si can be developed by using surface energy engineering, for water‐splitting applications. The stability of (114)A facets is first shown, based on scanning tunneling microscopy images, transmission electron microsc...

Full description

Saved in:
Bibliographic Details
Published in:Advanced functional materials 2018-07, Vol.28 (30), p.n/a
Main Authors: Lucci, Ida, Charbonnier, Simon, Vallet, Maxime, Turban, Pascal, Léger, Yoan, Rohel, Tony, Bertru, Nicolas, Létoublon, Antoine, Rodriguez, Jean‐Baptiste, Cerutti, Laurent, Tournié, Eric, Ponchet, Anne, Patriarche, Gilles, Pedesseau, Laurent, Cornet, Charles
Format: Article
Language:English
Subjects:
Atomic force microscopy
Condensed Matter
Contact resistance
Density functional theory
GaP/Si
Image transmission
Materials Science
Microscopy
Molecular beam epitaxy
Molecular beams
Molecular chains
nanopatterning
Physics
self‐organization
Silicon substrates
Surface energy
textured surfaces
Transmission electron microscopy
Water splitting
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This work shows that a large‐scale textured GaP template monolithically integrated on Si can be developed by using surface energy engineering, for water‐splitting applications. The stability of (114)A facets is first shown, based on scanning tunneling microscopy images, transmission electron microscopy, and atomic force microscopy. These observations are then discussed in terms of thermodynamics through density functional theory calculations. A stress‐free nanopatterned surface is obtained by molecular beam epitaxy, composed of a regular array of GaP (114)A facets over a 2 in. vicinal Si substrate. The advantages of such textured (114)A GaP/Si template in terms of surface gain, band lineups, and ohmic contacts for water‐splitting applications are finally discussed. A large‐scale stress‐free textured GaP template monolithically integrated on Si is produced by surface energy engineering for water‐splitting applications. The stability of GaP{114} facets is examined thermodynamically. The benefits of using a textured (114)A GaP/Si template for water‐splitting applications, in terms of surface gain, band lineups, and ohmic contacts are discussed.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201801585