Structural and Optical Properties of Self-Catalyzed Axially Heterostructured GaPN/GaP Nanowires Embedded into a Flexible Silicone Membrane

Olga Yu. Koval, Vladimir V. Fedorov, Alexey D. Bolshakov, Fedor M. Kochetkov, Vladimir Neplokh, Georgiy A. Sapunov, Liliia N. Dvoretckaia, Demid A. Kirilenko, Igor V. Shtrom , Regina M. Islamova , George E. Cirlin, Maria Tchernycheva, Alexey Yu. Serov , Ivan S. Mukhin

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Controlled growth of heterostructured nanowires and mechanisms of their formation have been actively studied during the last decades due to perspectives of their implementation. Here, we report on the self-catalyzed growth of axially heterostructured GaPN/GaP nanowires on Si(111) by plasma-assisted molecular beam epitaxy. Nanowire composition and structural properties were examined by means of Raman microspectroscopy and transmission electron microscopy. To study the optical properties of the synthesized nanoheterostructures, the nanowire array was embedded into the silicone rubber membrane and further released from the growth substrate. The reported approach allows us to study the nanowire optical properties avoiding the response from the parasitically grown island layer. Photoluminescence and Raman studies reveal different nitrogen content in nanowires and parasitic island layer. The effect is discussed in terms of the difference in vapor solid and vapor liquid solid growth mechanisms. Photoluminescence studies at low temperature (5K) demonstrate the transition to the quasi-direct gap in the nanowires typical for diluted nitrides with low N-content. The bright room temperature photoluminescent response demonstrates the potential application of nanowire/polymer matrix in flexible optoelectronic devices.
Translated title of the contributionСтруктурные и оптические свойства cамокатализируемых аксиально гетероструктурных GaPN/GaP нанопроводов, встроенных в гибкую силиконовую мембрану
Original languageEnglish
Pages (from-to)2110-2125
Number of pages15
JournalNanomaterials
Volume10
Issue number11
StatePublished - 23 Oct 2020

Keywords

  • flexible optoelectronics
  • self-catalyzed
  • dilute nitrides
  • GaPN
  • GaP
  • nanowire
  • NW membrane: III-V on Si
  • PDMS
  • diluted nitride
  • axially heterostructure

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