Potassium stearate doped PEDOT:PSS improves the performance of inverted perovskite solar cells
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) suffers from lower conductivity and surface defects, which hinders the extraction and transport of effective charges, thereby reducing the Power conversion efficiency (PCE) and long-term stability of PSCs. Therefore, this study intr...
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Veröffentlicht in: | Chemical communications (Cambridge, England) England), 2023-10, Vol.59 (79), p.11879-11882 |
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Sprache: | eng |
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Zusammenfassung: | Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) suffers from lower conductivity and surface defects, which hinders the extraction and transport of effective charges, thereby reducing the Power conversion efficiency (PCE) and long-term stability of PSCs. Therefore, this study introduces potassium stearate (KSt) doping in PEDOT:PSS to regulate its conductivity and interface charge transfer. As a result, KSt-doped PEDOT:PSS increase the PCE of the device from 16.35% to 18.35%. Moreover, the PCE of PSCs with KSt-doped PEDOT:PSS can maintain 87% of its initial value after being stored in a glove box for over 700 hours. This work provides a simple and effective method for designing high-performance and stable PSCs.
This work studied the doping of KSt in the PEDOT:PSS layer of devices ITO/K-PEDOT:PSS/perovskite/PCBM/BCP/Ag. The results showed that the doping of KSt improved the conductivity and charge transfer ability, thereby enhancing the PCE of inverted PSCs. |
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ISSN: | 1359-7345 1364-548X |
DOI: | 10.1039/d3cc03539e |