期刊
ACS NANO
卷 13, 期 5, 页码 6060-6070出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.9b02379
关键词
vapor-liquid-solid; all-inorganic; perovskite; nanowire; electronic; optoelectronic
类别
资金
- General Research Fund of the Research Grants Council of Hong Kong SAR, China [CityU 11204618]
- National Natural Science Foundation of China [51672229]
- Science Technology and Innovation Committee of Shenzhen Municipality [JCYJ20170818095520778]
- Shenzhen Research Institute, City University of Hong Kong
Controlled synthesis of lead halide perovskite (LHP) nanostructures not only benefits fundamental research but also offers promise for applications. Among many synthesis techniques, although catalytic vapor-liquid-solid (VLS) growth is recognized as an effective route to achieve high-quality nanostructures, until now, there is no detailed report on VLS grown LHP nanomaterials due to the emerging challenges in perovskite synthesis. Here, we develop a direct VLS growth for single-crystalline all-inorganic lead halide perovskite (i.e., CsPbX3; X = Cl, Br, or I) nanowires (NWs). These NWs exhibit high-performance photodetection with the responsivity exceeding 4489 A/W and detectivity over 7.9 x 10(12) Jones toward the visible light regime. Field-effect transistors (FET) based on individual CsPbX3 NWs are also fabricated, where they show the superior hole mobility of up to 3.05 cm(2)/(V s), higher than other all-inorganic LHP devices. This work provides important guidelines for the further improvement of these perovskite nanostructures for utilizations.
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