TY - JOUR
T1 - Enhancement of photocurrent in epitaxial lift-off thin-film GaInNAsSb solar cells due to light-confinement structure
AU - Miyashita, Naoya
AU - Behaghel, Benoît
AU - Guillemoles, Jean François
AU - Okada, Yoshitaka
N1 - Publisher Copyright:
© 2018 The Japan Society of Applied Physics.
PY - 2018/7/1
Y1 - 2018/7/1
N2 - This work focuses on the characterization of GaInNAsSb solar cells whose substrates are removed via the epitaxial lift-off (ELO) technique. As a result of the substrate removal, increases in the photocurrent and the interference feature were clearly observed. This is clear evidence of the light-confinement effect, whereby some of the unabsorbed photons at the rear metal contact were reflected back towards the front side of the ELO thin-film cell. We successfully demonstrated that the ELO technique can be applied for the GaInNAsSb cell, and the light management should add flexibility in designing the cell structures.
AB - This work focuses on the characterization of GaInNAsSb solar cells whose substrates are removed via the epitaxial lift-off (ELO) technique. As a result of the substrate removal, increases in the photocurrent and the interference feature were clearly observed. This is clear evidence of the light-confinement effect, whereby some of the unabsorbed photons at the rear metal contact were reflected back towards the front side of the ELO thin-film cell. We successfully demonstrated that the ELO technique can be applied for the GaInNAsSb cell, and the light management should add flexibility in designing the cell structures.
U2 - 10.7567/APEX.11.072301
DO - 10.7567/APEX.11.072301
M3 - Article
AN - SCOPUS:85049059532
SN - 1882-0778
VL - 11
JO - Applied Physics Express
JF - Applied Physics Express
IS - 7
M1 - 072301
ER -