TY - GEN
T1 - Ultrathin Cu(In,Ga)Se2 solar cells with Ag-based reflective back contacts
AU - Gouillart, Louis
AU - Cattoni, Andrea
AU - Chen, Wei Chao
AU - Zeitouny, Joya
AU - Riekehr, Lars
AU - Keller, Jan
AU - Jubault, Marie
AU - Naghavi, Negar
AU - Edoff, Marika
AU - Collin, Stephane
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/6/14
Y1 - 2020/6/14
N2 - We developed a highly reflective back contact for Cu(In,Ga)Se2 solar cells based on silver encapsulated in a TCOs stack, compatible with substrate configuration. We demonstrated ultrathin (500 nm) Cu(In,Ga)Se2solar cells with 13.5% efficiency and state-of-the-art \mathrm{J}_{\text{SC}}=28.9\ \text{mA}/\text{cm}_{2},2.7\ \text{mA}/\text{cm}_{2} more than the reference cell on molybdenum. We also demonstrated a 530 nm-thick (Ag, Cu)(In,Ga)Se2solar cell on Mo with state-of-the-art efficiency (14.9%) and remarkably high VOC (741 mV) and FF (81.8%). This result coupled with a highly reflective back contact for improved JSC, has the potential for a 500 nm-thick (Ag, Cu)(In,Ga)Se2solar cell with an 18% efficiency.
AB - We developed a highly reflective back contact for Cu(In,Ga)Se2 solar cells based on silver encapsulated in a TCOs stack, compatible with substrate configuration. We demonstrated ultrathin (500 nm) Cu(In,Ga)Se2solar cells with 13.5% efficiency and state-of-the-art \mathrm{J}_{\text{SC}}=28.9\ \text{mA}/\text{cm}_{2},2.7\ \text{mA}/\text{cm}_{2} more than the reference cell on molybdenum. We also demonstrated a 530 nm-thick (Ag, Cu)(In,Ga)Se2solar cell on Mo with state-of-the-art efficiency (14.9%) and remarkably high VOC (741 mV) and FF (81.8%). This result coupled with a highly reflective back contact for improved JSC, has the potential for a 500 nm-thick (Ag, Cu)(In,Ga)Se2solar cell with an 18% efficiency.
KW - (Ag,Cu)(In,Ga)Se2
KW - Ultrathin Cu(In,Ga)Se2
KW - light trapping
UR - https://www.scopus.com/pages/publications/85099536508
U2 - 10.1109/PVSC45281.2020.9300534
DO - 10.1109/PVSC45281.2020.9300534
M3 - Conference contribution
AN - SCOPUS:85099536508
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 1481
EP - 1484
BT - 2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
Y2 - 15 June 2020 through 21 August 2020
ER -