Journal
NANOSCALE
Volume 10, Issue 16, Pages 7658-7665Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nr00883c
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Funding
- National Natural Science Foundation of China [51502130]
- Natural Science Foundation of Jiangsu Province [SBK2015043303]
- Thousand Talents Program for Young Researchers
- Shuangchuang Program of Jiangsu Province
- Fundamental Research Funds for Central Universities
- Nanjing University
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Compositionally related cesium lead halide materials, such as CsPb2X5, have attracted great interest due to their considerable optoelectronic/optical properties as well as improved stability. Currently, CsPb2Br5 nanocrystals can be well-designed by tuning the ligands or precursor ratio, whereas, CsPb2X5 (with Cl- or I-) nanocrystals can only be obtained by the anion exchange method. Herein, we report a method to directly synthesize CsPb2X5 facilitated by thiol ligands. The morphology of CsPb2X5 can be designed as a nanowire. Importantly, the stability of directly synthesized CsPb2X5 nanowires is much improved when compared with the stabilities of the materials obtained by the anion-exchange method. We believe that this method will promote the application of 1D tetragonal CsPb2X5 in optoelectronics, optics and other fields.
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