Session 12: Flexible Electronics Applications II
Perovskite solar cells on flexible glass
Wednesday, February 14, 2018
3:55 PM - 4:20 PM
Metal halide perovskites have emerged as a highly promising solar cell technology with high light to electricity power conversion efficiency and low processing cost due to their solution processability. However, to make perovskite solar cells commercially viable, particularly to compete with or build upon the traditional silicon dominated photovoltaic market, substantial progress is needed in improving their process techniques and scalability. Fabricating perovskite devices and modules in a roll-to-roll process on flexible substrates will enable high throughput manufacturing, and it will also allow the application space to be extended beyond what is available to rigid geometries. We investigated the performance of flexible perovskite solar cells with various transparent conductors, includes flexible indium tin oxides (ITO) and indium zinc oxides (IZO), on thin (100μm) flexible glass substrates. Progress of scaling up printed perovskites to larger area, sheet-to-sheet and roll-to-roll, on flexible substrates will be reported. For device structures of flexible glass/ITO/TiO2/mixed cation perovskites/Spiro-OMeTAD/MoOx/Al, a power conversion efficiency of 18% was demonstrated.
Dr. van Hest is currently a Senior Scientist in the Thin Film Sciences and Processing group in the National Center for Photovoltaics at the National Renewable Energy Laboratory (NREL). He is the team leader for the atmospheric processing team. His principal areas of research and expertise include: solution-processing for silicon and thin-film solar cell applications, vacuum deposition, and transparent conductors. Dr. van Hest’s current interests focus on the development of solution-deposited materials for photovoltaic (PV) applications (e.g. metals, Perovskites, OPV, CIGS and transparent conductors) and the scaling of these to large area using scalable processing methods (e.g direct-write deposition, spray deposition, blade coating, slot-die coating and rapid thermal processing). Dr. van Hest is the PV thrust leader for the Solar Energy Research Institute between India and the United States (SERIIUS)
Maikel van Hest
National Renewable Energy Laboratory