期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 17, 期 2, 页码 851-857出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cp04520c
关键词
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资金
- National Natural Science Foundation of China [11374069]
- Chinese Academy of Sciences Strategic Pilot Program [XDA09020300]
- National Basic Research Program of China [2010CB934102]
- Natural Science Foundation of Hunan province [2015JJ6015]
Recently, hierarchical nanostructures have attracted increasing attention because of their large specific surface area and abundant physical characteristics. Here we propose a hierarchical Bi2S3 nested nano-network (Bi2S3-3N) with an excellent thermally-stable lattice structure, which is prepared by topotactic transformation. Experimental results revealed that for the first time, Bi2S3-3N possesses an interesting nature of the repetitively-operable persistent photoconductivity, which is believed to stem from the releasing of photo-stimulated carriers captured by deep-level traps. This work shows great potential of topotactic transformed Bi2S3 hierarchical nanostructures in practical applications like functional porous nanoarchitectures, bistable optical-switching, photo detectors, memory, etc.
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