A generic interface to reduce the efficiency-stability-cost gap of perovskite solar cells.
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| Title: | A generic interface to reduce the efficiency-stability-cost gap of perovskite solar cells. |
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| Authors: | Yi Hou, Xiaoyan Du, Scheiner, Simon, McMeekin, David P., Zhiping Wang, Ning Li, Killian, Manuela S., Haiwei Chen, Richter, Moses, Levchuk, Ievgen, Schrenker, Nadine, Spiecker, Erdmann, Stubhan, Tobias, Luechinger, Norman A., Hirsch, Andreas, Schmuki, Patrik, Steinrück, Hans-Peter, Fink, Rainer H., Halik, Marcus, Snaith, Henry J. |
| Source: | Science (pre-March 2025). 12/1/2017, Vol. 358 Issue 6367, p1192-1197. 6p. 4 Diagrams. |
| Subjects: | Perovskite, Solar cells, Tungsten oxides, Tantalum, Photoemission |
| Abstract: | A major bottleneck delaying the further commercialization of thin-film solar cells based on hybrid organohalide lead perovskites is interface loss in state-of-the-art devices. We present a generic interface architecture that combines solution-processed, reliable, and cost-efficient hole-transporting materials without compromising efficiency, stability, or scalability of perovskite solar cells. Tantalum-doped tungsten oxide (Ta-WOx)/conjugated polymer multilayers offer a surprisingly small interface barrier and form quasi-ohmic contacts universally with various scalable conjugated polymers. In a simple device with regular planar architecture and a self-assembled monolayer, Ta-WOx–doped interface–based perovskite solar cells achieve maximum efficiencies of 21.2% and offer more than 1000 hours of light stability. By eliminating additional ionic dopants, these findings open up the entire class of organics as scalable hole-transporting materials for perovskite solar cells. [ABSTRACT FROM AUTHOR] |
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| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | A major bottleneck delaying the further commercialization of thin-film solar cells based on hybrid organohalide lead perovskites is interface loss in state-of-the-art devices. We present a generic interface architecture that combines solution-processed, reliable, and cost-efficient hole-transporting materials without compromising efficiency, stability, or scalability of perovskite solar cells. Tantalum-doped tungsten oxide (Ta-WOx)/conjugated polymer multilayers offer a surprisingly small interface barrier and form quasi-ohmic contacts universally with various scalable conjugated polymers. In a simple device with regular planar architecture and a self-assembled monolayer, Ta-WOx–doped interface–based perovskite solar cells achieve maximum efficiencies of 21.2% and offer more than 1000 hours of light stability. By eliminating additional ionic dopants, these findings open up the entire class of organics as scalable hole-transporting materials for perovskite solar cells. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00368075 |
| DOI: | 10.1126/science.aao5561 |
