Amorphous carbon-based films with surface-plasmon-enhanced full-color photoluminescence

Li, Zhe; Xu, Gang; Ren, Zhaohui; Zhang, Xiwen; Shen, Ge; Li, Xiang; Han, Guangting

doi:10.1016/j.jnoncrysol.2012.03.013

Cited by 2 publications

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“…Настройка длины волны пика плазмонного резонанса в видимой области спектра, интенсивности и полуширины полосы плазмонного резонанса могут осуществляться путем изменения не только размера и формы металлических наночастиц, но также показателя преломления окружающей среды [13][14][15]. С увеличением показателя преломления пленок аморфного углерода, нанесенных на поверхность наноструктурированного слоя Ag, наблюдался красный сдвиг плазмонного резонанса [16].…”

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Эллипсометрическое Исследование Тонкопленочных Структур Аморфного Гидрогенизированного Углерода И Наночастиц Золота

Толмачев¹,

Shcherbinin

Konshina³

2019

Журнал Технической Физики

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In this work, the optical constant films of amorphous hydrogenated carbon (a-C: H) and a hybrid structure based on it with a granulated gold film before and after their annealing at 300 °C were studied by spectral ellipsometry. The dispersions n (λ) and k (λ) of the a-C:H film were established using the Cauchy approximation and its thickness. The spectral features of the Au plasmon nanoparticle layer deposited on the a-C:H surface were modeled as an effective medium and a Lorentz oscillator. The parameters of the films and their thickness were determined by fitting the calculated spectra to the ellipsometric spectra  (λ) and  (λ). The obtained data were used to determine the parameters of the Lorentz oscillator in the model of a-C:H / Au two-layer structure. As a result of the a-C:H / Au structure annealing, the intensity of the maxima in the spectra n and k increased, their position shifted to the blue region, and the half-width of the bands decreased. The observed changes in the ellipsometric spectra are completely consistent with the spectrophotometric data of this structure.

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