Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 12, Issue 2, Pages 596-606Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ee02751j
Keywords
-
Funding
- Australian Renewable Energy Agency
- European Union's Seventh Framework Programme [PIOF-GA-2013-622630]
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (HYPERION) [756962]
- Royal Society [UF150033]
- Tata Group [UF150033]
- CSIRO Julius Career Fellowship
- International Synchrotron Access Program (ISAP)
- Australian Government
- MRSEC Program of the National Science Foundation [MDR -1419807]
- Yonsei University Future-leading Research Initiative [2017-22-0088]
- DOE Office of Science User Facility [DE-AC-0205CH11231]
- Nava Technology Limited
- Cambridge Materials Limited
- EPSRC [EP/M005143/1]
- NSF [1605406 (EP/L000202)]
- UAE's Distinguished Student Scholarship Program (DSS) - Ministry of Presidential Affairs
- National Research Foundation of Korea (NRF) - Korean government (MSIT) [2018R1C1B6008728]
- EPSRC [EP/M005143/1] Funding Source: UKRI
Ask authors/readers for more resources
Halide perovskites are promising semiconductors for inexpensive, high-performance optoelectronics. Despite a remarkable defect tolerance compared to conventional semiconductors, perovskite thin films still show substantial microscale heterogeneity in key properties such as luminescence efficiency and device performance. However, the origin of the variations remains a topic of debate, and a precise understanding is critical to the rational design of defect management strategies. Through a multi-scale investigation - combining correlative synchrotron scanning X-ray diffraction and time-resolved photoluminescence measurements on the same scan area - we reveal that lattice strain is directly associated with enhanced defect concentrations and non-radiative recombination. The strain patterns have a complex heterogeneity across multiple length scales. We propose that strain arises during the film growth and crystallization and provides a driving force for defect formation. Our work sheds new light on the presence and influence of structural defects in halide perovskites, revealing new pathways to manage defects and eliminate losses.
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