期刊
NANO LETTERS
卷 17, 期 6, 页码 3629-3633出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b00803
关键词
Nanowires; InAs; self-catalyzed; photoluminescence
类别
资金
- UK EPSRC [EP/P000886/1]
- Leverhulme Trust
- Engineering and Physical Sciences Research Council [EP/P000916/1, EP/P000886/1] Funding Source: researchfish
- EPSRC [EP/P000886/1, EP/P000916/1] Funding Source: UKRI
In this Letter, we demonstrate that a Significant improvement of optical performance of InAs nanowires can be achieved by capping the core InAs nanowires with a thin LIP shell, which successfully passivates the surface states reducing the rate of nonradiative recombination. The improvements have been confirmed by detailed photoluminescence measurements, which showed up to a 10-fold increase in the intensity of room-temperature photoluminescence from the capped InAs/InP nanowires compared the sample with core-only InAs nano-wires. Moreover, the nanowires exhibit a high stability of total photoluminescence emission strength across temperature range from 10 to 300K as a result of strong quantum confinement. These findings could be the key to-successful implementation.of InAs nanowires into optoelectronic devices.
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