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Issue 35, 2018
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Exciton emissions in quasi one-dimensional layered KP15

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Abstract

We studied the excitonic states of KP15 nanowires, which have high carrier mobility and in-plane anisotropic electrical and optical properties. Power, thickness, and temperature-dependent photoluminescence (PL) measurements were carried out. We found two neutral exciton emissions from KP15 nanowires. The high energy emission (1.83 eV) seems to have been produced by the surface state, and the lower one (1.67 eV) may have been produced by the original crystal structure of KP15. The KP15 nanowires also exhibited a large exciton binding energy (98 meV), which is one order of magnitude greater than those of common semiconductors. These properties make KP15 nanowires an interesting material for electrical and optical applications.

Graphical abstract: Exciton emissions in quasi one-dimensional layered KP15

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Publication details

The article was received on 17 Jul 2018, accepted on 23 Aug 2018 and first published on 24 Aug 2018


Article type: Communication
DOI: 10.1039/C8NR05766D
Citation: Nanoscale, 2018,10, 16479-16484
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    Exciton emissions in quasi one-dimensional layered KP15

    N. Tian, D. Liu, Y. Yang, G. Zhang, D. Zhang and Y. Zhang, Nanoscale, 2018, 10, 16479
    DOI: 10.1039/C8NR05766D

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