Perovskite Solar Cells [electronic resource] : Addressing Low Cost, High Efficiency, and Reliability Through Novel Hole-Transport Materials.
Perovskite Solar Cells, Organic Hole Transport Materials.
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| Online Access: |
Full Text (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
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Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. Office of Energy Efficiency and Renewable Energy ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2019.
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| Summary: | Perovskite Solar Cells, Organic Hole Transport Materials. |
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| Abstract: | The ultimate goal of this project is to develop low-cost and scalable organic-based hole transport materials that will lead to thin film perovskite solar cells with high efficiencies (>25%) and long lifetimes (>20 years). A very important component of a perovskite solar cell is the hole transport layer (HTL). This layer is also generally the most expensive and problematic component of the device. Currently the state-of-the-art HTL is based on a lithium salt doped aromatic amine termed N2,N2,N2',N2',N7,N7,N7',N7'-octakis(4-methoxyphenyl)-9,9'-spirobi[9H-fluorene]-2,2',7,7'-tetramine (spiro-OMeTAD) that is very difficult to prepare with no paths for becoming cost effective at high volume. This project will directly prepare perovskite solar cells more easily commercialized by designing and preparing new HTL materials with properties that address the current bottlenecks, such as cost, tunable conductivity and energy levels, hydrophobicity, Li free dopants, and stability to name a few. We have preliminary results from new cost-effective HTLs and dopants that have led to high efficiency (>19%) and long operating lifetime devices without encapsulation - significantly improved over spiro-OMeTAD based devices prepared in our labs as controls. We will focus on using the lessons learned from that first departure from the norm to design even more ideal and scalable HTLs. We believe the outcomes of this proposal will lead to a substantial impact for the perovskite community to develop a low cost, scalable and high performing HTL. This will be a collaborative effort where our synthetic chemists will perform HTL design, chemical synthesis, and materials characterization, while our device engineers will perform device physics, fabrication/processing, and characterization. |
| Item Description: | Published through SciTech Connect. 09/03/2019. "rppr-1 _401271_123117" Alan Sellinger. |
| Type of Report and Period Covered Note: | Final; |