期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 7, 期 20, 页码 5954-5961出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9tc01104h
关键词
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资金
- National Natural Science Foundation of China [51601131, 61875139, 51702219]
- Shenzhen Nanshan District Pilotage Team Program [LHTD20170006]
- Australian Research Council (ARC) [FT150100450, IH150100006, CE170100026, CE170100039]
- International Postdoctoral Exchange Fellowship Program
- Hubei Provincial Natural Science Foundation [2016CFB166]
- Australian Research Council (ARC) Centre of Excellence in Future Low-Energy Electronics Technologies (FLEET)
- ARC Centre of Excellence in Exciton Science
- China Postdoctoral Science Foundation [217M622758]
- MCATM
- FLEET
Effective assembly of perovskite quantum dots is a huge challenge to develop high-performance optoelectronic devices with large scale integration functionality. Here, we demonstrate a facile way to fabricate one-dimensional arrays consisting of aligned perovskite quantum dots and their remarkable application as high-performance photodetectors. All inorganic perovskite CsPbX3 (X = Cl, Br, I) quantum dots, synthesized by a hot injection method, are precisely assembled into the one-dimensional arrays using a liquid bridge induced assembly strategy. Systematic studies have shown that photodetectors based on such one-dimensional CsPbI3 quantum dot arrays have excellent performance in terms of high responsivity and high detection sensitivity. It is suggested that the availability of more oxygen-rich hole trapping states on the surface of the quantum dots play an important role in the photocurrent generation. This work presents a significant step forward towards scalable self-assembly of perovskite quantum dots into one-dimensional arrays, indicating an enormous potential in manufacturing of high-performance integrated optoelectronic sensor circuitry.
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