| Autor: |
Seid Yimer Abate, Surabhi Jha, Guorong Ma, Jawnaye Nash, Nihar Pradhan, Xiaodan Gu, Derek Patton, Qilin Dai |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
ACS applied materialsinterfaces. 14(51) |
| ISSN: |
1944-8252 |
| Popis: |
The power conversion efficiency (PCE) of perovskite solar cells (PSCs) has increased and levels with silicon solar cells; however, their commercialization has not yet been realized because of their poor long-term stability. One of the primary causes of the instability of PSC devices is the large concentration of defects in the polycrystalline perovskite film. Such defects limit the device performance besides triggering hysteresis and device instability. In this study, tetradodecylammonium bromide (TDDAB) was used as a postsurface modifier to suppress the density of defects from the mixed perovskite film (CsFAMA). X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) analyses validated that TDDAB binds to the mixed perovskite through hydrogen bonding. The X-ray diffraction (XRD) and two-dimensional grazing incidence wide-angle X-ray scattering (2D GIWAXS) study uncovered that the TDDAB modification formed a capping layer of (TDDA) |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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