Optimization of the morphology of submonolayer metallic nanoparticles to enhance light trapping on a semiconductor surface

• Опубліковано в: : Semiconductor Physics Quantum Electronics & Optoelectronics
• Дата: 2019
• Автори: Lozovski, V.Z., De Sio, A., Lienau, C., Tarasov, G.G., Vasyliev, T.A., Zhuchenko, Z.Ya.
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2019
• Теми: Hetero- and low-dimensional structures
• Онлайн доступ: https://nasplib.isofts.kiev.ua/handle/123456789/215590
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Optimization of the morphology of submonolayer metallic nanoparticles to enhance light trapping on a semiconductor surface / V.Z. Lozovski, A. De Sio, C. Lienau, G.G. Tarasov, T.A. Vasyliev, Z.Ya. Zhuchenko // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2019. — Т. 22, № 4. — С. 410-417. — Бібліогр.: 23 назв. — англ.

The problem of light trapping engineering for semiconductor surfaces covered with randomly distributed spheroidal metallic nanoparticles has been considered. The absorption of incident light by such a structure has been calculated using the Green's function method, involving the concept of an effective susceptibility. A target function, optimizing broad-band light absorption throughout the visible range, has been constructed, taking the geometry of the structure as the control parameters. The optimization problem of light-trapping in such a structure has been solved, and the optimum nanoparticle coverage for matching the required shape of absorption spectra has been obtained. Our results can be applied to the design of plasmonic-enhanced light-collecting elements in solar cells.