Indolo[3,2-b]indole-based crystalline hole-transporting material for highly efficient perovskite solar cells
| Autor: | Soo Young Park, Jun Hong Noh, Dongwon Kim, Jangwon Seo, Sang Il Seok, Oh Kyu Kwon, Nam Joong Jeon, Illhun Cho, Eui Hyuk Jung |
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| Rok vydání: | 2017 |
| Předmět: |
Indole test
Electron mobility Materials science Photovoltaic system Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Amorphous solid Crystallography Photoluminescence quenching 0210 nano-technology Spherical shape Perovskite (structure) |
| Zdroj: | Chemical Science. 8:734-741 |
| ISSN: | 2041-6539 2041-6520 |
| DOI: | 10.1039/c6sc02832b |
| Popis: | We have designed and synthesized fluorinated indolo[3,2-b]indole (IDID) derivatives as crystalline hole-transporting materials (HTM) for perovskite solar cells. The fluorinated IDID backbone enables a tight molecular arrangement stacked by strong π–π interactions, leading to a higher hole mobility than that of the current HTM standard, p,p-spiro-OMeTAD, with a spherical shape and amorphous morphology. Moreover, the photoluminescence quenching in a perovskite/HTM film is more effective at the interface of the perovskite with IDIDF as compared to that of p,p-spiro-OMeTAD. As a consequence, the device fabricated using IDIDF shows superior photovoltaic properties compared to that using p,p-spiro-OMeTAD, exhibiting an optimal performance of 19%. Thus, this remarkable result demonstrates IDID core-based materials as a new class of HTMs for highly efficient perovskite solar cells. |
| Databáze: | OpenAIRE |
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