Journal
ADVANCED MATERIALS
Volume 31, Issue 48, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201904408
Keywords
bionics; depth resolved grazing incident X-ray diffraction; perovskite solar cells
Categories
Funding
- National Key Research and Development Program of China [2016YFB0700700]
- National Natural Science Foundation of China [51673025, 51672008, 21603010, 21875013]
- Young Talent Thousand Program
- Open Fund of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology) [ZDKT18-01]
Ask authors/readers for more resources
To improve the photovoltaic performance (both efficiency and stability) in hybrid organic-inorganic halide perovskite solar cells, perovskite lattice distortion is investigated with regards to residual stress (and strain) in the polycrystalline thin films. It is revealed that residual stress is concentrated at the surface of the as-prepared film, and an efficient method is further developed to release this interfacial stress by A site cation alloying. This results in lattice reconstruction at the surface of polycrystalline thin films, which in turn results in low elastic modulus. Thus, a bone-joint configuration is constructed within the interface between the absorber and the carrier transport layer, which improves device performance substantially. The resultant photovoltaic devices exhibit an efficiency of 21.48% with good humidity stability and improved resistance against thermal cycling.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available