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Nickel(II) Nitrate Hole‐Transporting Layers for Single‐Junction Bulk Heterojunction Organic Solar Cells with a Record 19.02 % Efficiency.
- Source :
- Angewandte Chemie; 5/15/2023, Vol. 135 Issue 21, p1-8, 8p
- Publication Year :
- 2023
-
Abstract
- A facile strategy was developed here to improve the film quality of nickel‐based hole transporting layer (HTL) for efficient organic solar cell (OSC) applications. To prevent the agglomeration of Ni(NO3)2 during film deposition, acetylacetonate was added into the precursor solution, which led to the formation of an amorphous and glass‐like state. After thermal annealing (TA) treatment, the film‐forming ability could be further improved. The additional UV‐ozone (UVO) treatment continuously improved the film quality and increased the work function and conductivity of such HTL. The resulting TA & UVO modified Ni(NO3)2 & Hacac HTL produced highly efficient organic solar cells with exciting power conversion efficiencies of 18.42 % and 19.02 % for PM6 : BTP‐eC9 and D18 : BTP‐Th devices, respectively, much higher than the control PEDOT : PSS devices. [ABSTRACT FROM AUTHOR]
- Subjects :
- PHOTOVOLTAIC power systems
SOLAR cells
HETEROJUNCTIONS
NICKEL
NITRATES
Subjects
Details
- Language :
- English
- ISSN :
- 00448249
- Volume :
- 135
- Issue :
- 21
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie
- Publication Type :
- Academic Journal
- Accession number :
- 163565647
- Full Text :
- https://doi.org/10.1002/ange.202301958