TY - GEN
T1 - In-situ stress and thermal stability studies of molybdenum bilayer back contacts for photovoltaic applications
AU - Karthikeyan, Sreejith
AU - Zhang, Liyuan
AU - Campbell, Stephen A.
PY - 2014/10/15
Y1 - 2014/10/15
N2 - Molybdenum bilayers have been used as back contacts for CIGS and CZTS based solar cell for years. Mo bilayer films undergo a heat treatment during the CIGS/CZTS deposition process which in turn changes the stress and morphological properties and affects the adhesion and morphological features of CIGS/CZTS layers. This work reports in-situ studies of Mo stress variation during anneals ranging from 20°C to 500°C and compares its morphological and electrical properties before and after heating to develop a thermally stable Mo bilayer. We have also used a low tensile stress bilayer developed in this way to demonstrate CZTS and CIAGS films with good adhesion properties.
AB - Molybdenum bilayers have been used as back contacts for CIGS and CZTS based solar cell for years. Mo bilayer films undergo a heat treatment during the CIGS/CZTS deposition process which in turn changes the stress and morphological properties and affects the adhesion and morphological features of CIGS/CZTS layers. This work reports in-situ studies of Mo stress variation during anneals ranging from 20°C to 500°C and compares its morphological and electrical properties before and after heating to develop a thermally stable Mo bilayer. We have also used a low tensile stress bilayer developed in this way to demonstrate CZTS and CIAGS films with good adhesion properties.
KW - CIAGS absorber layer
KW - CZTS absorber layer
KW - In-situ stress analysis
KW - Mo bilayer
UR - http://www.scopus.com/inward/record.url?scp=84912074736&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84912074736&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2014.6924939
DO - 10.1109/PVSC.2014.6924939
M3 - Conference contribution
AN - SCOPUS:84912074736
T3 - 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014
SP - 387
EP - 389
BT - 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 40th IEEE Photovoltaic Specialist Conference, PVSC 2014
Y2 - 8 June 2014 through 13 June 2014
ER -