Synthesis and optical properties of heterogeneous film structure based on InP/InAsP/InP nanowires

Khrebtov, A.I., Kulagina, A.S., Danilov, V.V., Dragunova, A.S., Kotlyar, K.Р., Reznik, R.R., Cirlin, G.Е.

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For Russian citation (Opticheskii Zhurnal):

Хребтов А.И., Кулагина А.С., Данилов В.В., Драгунова А.С., Котляр К.П., Резник Р.Р., Цырлин Г.Э. Синтез и оптические свойства гетерогенной пленочной структуры на основе нитевидных нанокристаллов InP/InAsP/InP // Оптический журнал. 2022. Т. 89. № 5. С. 72–77. http://doi.org/ 10.17586/1023-5086-2022-89-05-72-77

Khrebtov A.I., Kulagina A.S., Danilov V.V., Dragunova A.S., Kotlyar K.P., Reznik R.R., Cirlin G.E. Synthesis and optical properties of heterogeneous film structure based on InP/InAsP/InP nanowires [in Russian] // Opticheskii Zhurnal. 2022. V. 89. № 5. P. 72–77. http://doi.org/ 10.17586/1023-5086-2022-89-05-72-77

For citation (Journal of Optical Technology):

A. I. Khrebtov, A. S. Kulagina, V. V. Danilov, A. S. Dragunova, K. P. Kotlyar, R. R. Reznik, and G. E. Cirlin, "Synthesis and optical properties of heterogeneous film structure based on InP/InAsP/InP nanowires," Journal of Optical Technology. 89(5), 298-301 (2022). https://doi.org/10.1364/JOT.89.000298

Abstract:

Subject of study. The dependence of the photoluminescence of a flexible film structure, which is an array of InP/InAsP/InP nanowires incorporated into a polymerized trioctylphosphine oxide layer with CdSe/ZnS colloidal quantum dots, on the intensity of excitation in the near-infrared range at room temperature was investigated in this study. Method. Nanowires were synthesized on a Si (III) substrate by molecular beam epitaxy using a Riber Compact 21 setup. A polymerized film formed after application of a colloidal solution of trioctylphosphine oxide and CdSe/ZnS quantum dots in toluene on the substrate. This film could be easily detached from the substrate. A continuous Nd⁺³:yttrium lithium fluoride laser with a wavelength of 527 nm acted as an excitation source in spectral measurements. The emission power varied in the range of 15–100 mW. Main results. A method for fabrication of a flexible film structure comprising an array of semiconductor nanowires and colloidal quantum dots was demonstrated. A nonlinear dependence of the photoluminescence intensity on the intensity of exciting radiation was obtained. It was attributed to the light quenching effect. A mechanism for the increase in the photoluminescence intensity in the film structure is proposed. Practical significance. Considering the position of the maximum in the photoluminescence band in the vicinity of 1.3 µm, the proposed film heterostructure can be advantageous for integration with fiber-optic systems.

Keywords:

Thread-like nanocrystals, quantum dots, photoluminescence, flexible electronics

Acknowledgements:

Experimental models synthesis was carried out with financial support of the Ministry of Science and Higher Education within the state assignment No. 0791-2020-0003. The research of the constructive properties of the models was supported by the grant of the Russian Science Foundation No. 21-72-00099. The research of the optical properties of received nanostructures was carried out within the Fundamental research program of National Research University Higher School of Economics.

OCIS codes: 300.2530, 300.6340, 300.6470

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