Hybrid Systems Based on Porous Silicon Photonic Crystals, Liquid Crystals, and Quantum Dots

Kriukova, I.S.; Bobrovsky, A.Y.; Martynov, I.L.; Samokhvalov, P.S.; Nabiev, I.R.

Авторы: Kriukova I.S., Bobrovsky A.Yu, Martynov I.L., Samokhvalov P.S., Nabiev I.R.
Журнал: Physics of Atomic Nuclei
Том: 86
Номер: 11
Год издания: 2023
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 2540
Последняя страница: 2545
DOI: 10.1134/s1063778823110273
Аннотация: Porous silicon (pSi) photonic crystals are of much interest for both basic and applied research.Embedding luminophores into these structures allows controlling their emissive properties, which holdspromise for laser and display applications, as well as for investigation of light–matter interaction. In addition,the development of photonic crystals in which the spectral position of the photonic band gap can be shiftedby external factors offers prospects for designing new photonic and optoelectronic materials. Here, a technologyfor the fabrication of hybrid systems based on quantum dots (QDs) and nematic photochromic liquidcrystal mixtures placed inside pSi microcavities (MCs) is suggested. When QDs are placed inside a pSi MC,their photoluminescence (PL) spectrum narrows due to the Purcell effect and weak coupling between theexciton transitions in the QDs and the eigenmode of the pSi MC. Exposure to UV light causes a shift of thePL spectrum of the hybrid structure to longer wavelengths, whereas exposure to visible light shifts the spectrumback to shorter wavelengths. This photo-optical response can be used to control the PL properties of thehybrid systems and design new photonic, optoelectronic, and sensing devices on their basis.
Добавил в систему: Бобровский Алексей Юрьевич

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Hybrid Systems Based on Porous Silicon Photonic Crystals, Liquid Crystals, and Quantum Dotsстатья

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