期刊
NANO LETTERS
卷 16, 期 2, 页码 871-876出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b03504
关键词
Perovskite; nanowire; thin film; kinetic control; CH3NH3PbI3
类别
资金
- State Key Program for Basic Research of China [2015CB659300]
- National Natural Science Foundation of China (NSFC) [11321063, 11574143]
- Natural Science Foundation of Jiangsu Province [BK20150056]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Fundamental Research Funds for Central Universities
With significant progress in the past decade, semiconductor nanowires have demonstrated unique features compared to their thin film counterparts, such as enhanced light absorption, mechanical integrity and reduced therma conductivity, etc. However, technologies of semiconductor thin film still serve as foundations of several major industries, such as electronics, displays, energy, etc. A direct path to convert thin film to nanowires can build a bridge between these two and therefore facilitate the large-scale applications of nanowires. Here, we demonstrate that methylammonium lead iodide (CH3NH3PbI3) nanowires can be synthesized directly from perovskite film by a scalable conversion process. In addition, with fine kinetic control, morphologies, and diameters of these nanowires can be well-controlled. Based on these perovskite nanowires with excellent optical trapping and mechanical properties, flexible photodetectors with good sensitivity are demonstrated.
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