Atomically thin two-dimensional organic-inorganic hybrid perovskites
Lawrence Berkeley National Laboratory · University of California, Berkeley · +2 more institutions
Abstract
Organic-inorganic hybrid perovskites, which have proved to be promising semiconductor materials for photovoltaic applications, have been made into atomically thin two-dimensional (2D) sheets. We report the solution-phase growth of single- and few-unit-cell-thick single-crystalline 2D hybrid perovskites of (C4H9NH3)2PbBr4 with well-defined square shape and large size. In contrast to other 2D materials, the hybrid perovskite sheets exhibit an unusual structural relaxation, and this structural change leads to a band gap shift as compared to the bulk crystal. The high-quality 2D crystals exhibit efficient photoluminescence, and color tuning could be achieved by changing sheet thickness as well as composition via…
Citation impact
- FWCI
- 88.54
- Percentile
- 100%
- References
- 32
Authors
14- LDLetian DouCorresponding
Lawrence Berkeley National Laboratory, University of California, Berkeley
- ABAndrew Barnabas WongCorresponding
Lawrence Berkeley National Laboratory, University of California, Berkeley
- YYYi YuCorresponding
Lawrence Berkeley National Laboratory, ShanghaiTech University, University of California, Berkeley
- MLMinliang Lai
University of California, Berkeley
- NKNikolay Kornienko
Lawrence Berkeley National Laboratory, University of California, Berkeley
Topics & keywords
- Perovskite (structure)
- Photoluminescence
- Thin film
- Materials science
- Unit (ring theory)
- Crystallography
- Mineralogy
- Chemical engineering