Photovoltaic Performance of Perovskite Solar Cells Based on Hole Transport Layer
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Abstract
Heatwaves are responsible for more deaths across the world than floods, tornados, or hurricanes. The problem, and the potential solution is the Sun. Every hour, it emits enough energy to power our entire world for a year. However, we need an efficient, green, and cost effective way to harness that energy. Perovskite structures may be the answer. These crystals can be grown naturally, and they have the ability to utilize and convert sunlight into electricity. They’re also tunable, so that you can achieve a desired physical or chemical property by swapping their atoms. This makes them excellent prospects for light absorbing material. Standard perovskite solar cells (PSCs) comprise a mixture of organic precursor molecules. However, with the addition of inorganic cesium, the resulting triple cation perovskite structures are thermally more stable, contain less impurities, and are less sensitive to processing conditions than their counterparts. In addition, the choice for the hole transport layer (HTL) in PSCs plays an essential role in their efficiency. During our experiment, we used two different self assembling monomers for the HTL to prove how a minute change can significantly improve light power conversion efficiency in PSCs.
Sponsored by
NSF- Nano Research Experience for Teachers (RET) at Rice University- NSF EEC-1406885
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