Journal
CHEMSUSCHEM
Volume 9, Issue 18, Pages 2604-2608Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201600933
Keywords
perovskite; porous carbon; solar cell; stability; thermal stress
Funding
- Advanced Low Carbon Technology Research and Development Program (ALCA, JST), Japan
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Many efforts have been made towards improving perovskite (PVK) solar cell stability, but their thermal stability, particularly at 85 degrees C (IEC 61646 climate chamber tests), remains a challenge. Outdoors, the installed solar cell temperature can reach up to 85 degrees C, especially in desert regions, providing sufficient motivation to study the effect of temperature stress at or above this temperature (e.g., 100 degrees C) to confirm the commercial viability of PVK solar cells for industrial companies. In this work, a three-layer printable HTM-free CH3NH3PbI3 PVK solar cell with a mesoporous carbon back contact and UV-curable sealant was fabricated and tested for thermal stability over 1500h at 100 degrees C. Interestingly, the position of the UV-curing glue was found to drastically affect the device stability. The side-sealed cells show high PCE stability and represent a large step toward commercialization of next generation organic-inorganic lead halide PVK solar cells.
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