TY - GEN
T1 - Achieving High-Performance in Flexible CIGS Solar Cells Through Advanced Deposition Optimization
AU - Lontchi, Jackson
AU - Dufoulon, Vincent
AU - Crossay, Alexandre
AU - Gamet, Damien
AU - Tom, Thomas
AU - Rebai, Amelle
AU - Posada, Jorge
AU - Donsanti, F.
AU - Lincot, Daniel
AU - Guillemoles, Jean Francois
AU - Naghavi, Negar
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025/1/1
Y1 - 2025/1/1
N2 - This study investigates advanced optimization strategies to enhance the performance of Cu(In,Ga)Se2 (CIGS) solar cells on flexible polyimide substrates. To ensure stable operation near the thermal limits of the polyimide, the deposition temperature was carefully optimized to balance performance improvements with substrate integrity. At low deposition temperatures, key performance drivers were identified, including precise control of the gallium gradient, the positioning of the bandgap notch, and alkali metal post-deposition treatments. These factors play a critical role and need further refinement. This paper examines how these combined parameters affect the material properties of the absorbers as well as the Voc, Jsc, and the fill factor (FF), enabling high-performance, low-temperature CIGS solar cells with efficiencies reaching 17.4% (without antireflecting layer). This progress expands their potential for lightweight and portable photovoltaic applications.
AB - This study investigates advanced optimization strategies to enhance the performance of Cu(In,Ga)Se2 (CIGS) solar cells on flexible polyimide substrates. To ensure stable operation near the thermal limits of the polyimide, the deposition temperature was carefully optimized to balance performance improvements with substrate integrity. At low deposition temperatures, key performance drivers were identified, including precise control of the gallium gradient, the positioning of the bandgap notch, and alkali metal post-deposition treatments. These factors play a critical role and need further refinement. This paper examines how these combined parameters affect the material properties of the absorbers as well as the Voc, Jsc, and the fill factor (FF), enabling high-performance, low-temperature CIGS solar cells with efficiencies reaching 17.4% (without antireflecting layer). This progress expands their potential for lightweight and portable photovoltaic applications.
UR - https://www.scopus.com/pages/publications/105016222574
U2 - 10.1109/PVSC59419.2025.11132832
DO - 10.1109/PVSC59419.2025.11132832
M3 - Conference contribution
AN - SCOPUS:105016222574
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 438
EP - 440
BT - 2025 IEEE 53rd Photovoltaic Specialists Conference, PVSC 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 53rd IEEE Photovoltaic Specialists Conference, PVSC 2025
Y2 - 8 June 2025 through 13 June 2025
ER -
