Journal Article

FZJ-2022-03732

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Efficient Single-Photon Sources Based on Chlorine-Doped ZnSe Nanopillars with Growth Controlled Emission Energy

Kutovyi, Y. (Corresponding author)FZJ* ; Jansen, M. M.FZJ* ; Qiao, S.FZJ* ; Falter, C.FZJ* ; von den Driesch, N.FZJ* ; Brazda, T.FZJ* ; Demarina, N.FZJ* ; Trellenkamp, S.FZJ* ; Bennemann, B.FZJ* ; Grützmacher, D.FZJ* ; Pawlis, A. (Corresponding author)FZJ*

2022
Soc. Washington, DC

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Please use a persistent id in citations: http://hdl.handle.net/2128/32079  doi:10.1021/acsnano.2c05045

Abstract: Isolated impurity states in epitaxially grown semiconductor systems possess important radiative features such as distinct wavelength emission with a very short radiative lifetime and low inhomogeneous broadening, which make them promising for the generation of indistinguishable single photons. In this study, we investigate chlorine-doped ZnSe/ZnMgSe quantum well (QW) nanopillar (NP) structures as a highly efficient solid-state single-photon source operating at cryogenic temperatures. We show that single photons are generated due to the radiative recombination of excitons bound to neutral Cl atoms in ZnSe QW and the energy of the emitted photon can be tuned from about 2.85 down to 2.82 eV with ZnSe well width increase from 2.7 to 4.7 nm. Following the developed advanced technology, we fabricate NPs with a diameter of about 250 nm using a combination of dry and wet-chemical etching of epitaxially grown ZnSe/ZnMgSe QW structures. The remaining resist mask serves as a spherical- or cylindrical-shaped solid immersion lens on top of NPs and leads to the emission intensity enhancement by up to an order of magnitude in comparison to the pillars without any lenses. NPs with spherical-shaped lenses show the highest emission intensity values. The clear photon-antibunching effect is confirmed by the measured value of the second-order correlation function at a zero time delay of 0.14. The developed single-photon sources are suitable for integration into scalable photonic circuits.

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Contributing Institute(s):

1. Halbleiter-Nanoelektronik (PGI-9)
2. Helmholtz - Nanofacility (HNF)
3. Theoretische Nanoelektronik (PGI-2)
4. JARA Institut Green IT (PGI-10)

Research Program(s):

1. 5224 - Quantum Networking (POF4-522) (POF4-522)
2. DFG project 337456818 - Entwicklung von Spin-Qubit Bauelementen aus ZnSe/(Zn,Mg)Se Quantenstrukturen (337456818) (337456818)

Appears in the scientific report 2022

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 15 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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