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STUDY THE EFFECT OF (HF / H2O2) CONCENTRATION ON POROUS SILICON NANOWIRES BIOAPPLICATIONS BY AG-ASSISTED ELECTROLESS ETCHING METHOD (53-57)



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Дата публикации статьи в журнале: 2018/12/10
Название журнала: Евразийский Союз Ученых, Выпуск: 56, Том: 1, Страницы в выпуске: 53-57
Автор: Muhannad M. Qassime
Saratov, Department of Nano- and Biomedical Technologies, Saratov State University, Ministry of Science and Technology, Department of Chemical and Pharmaceutical Analysis,
Автор: D.O. Kochnev
Saratov, Department of Nano- and Biomedical Technologies, Saratov State University,
Автор: Denis V. Terin
Saratov, Department of Nano- and Biomedical Technologies, Saratov State University,
Анотация: We report on the structural and optical properties of porous silicon nanowires (PSiNWs) fabricated using silver (Ag+) ions assisted electroless etching method we prepare vertical and single crystalline PSiNWs via a twostep metal-assisted electroless etching method. The porosity of the nanowires is restricted by etchant concentration, etching time and doping lever of the silicon wafer. The diffusion of Ag+ ions could lead to the nucleation of silver nanoparticles on the nanowires and open new etching ways. Like porous silicon (PS), these PSiNWs also show excellent photoluminescence (PL) properties. The PL intensity increases with porosity, with an enhancement of about 100 times observed in our condition experiments. A “red-shift” of the PL peak is also found. These PSiNWs fabricated using the electroless etching method can find useful applications in biomedical and optical sensors.
Ключевые слова: Porous silicon nanowires  Electroless etching  Silver catalyst  Porosity Photoluminescence              
Данные для цитирования: Muhannad M. Qassime D.O. Kochnev Denis V. Terin. STUDY THE EFFECT OF (HF / H2O2) CONCENTRATION ON POROUS SILICON NANOWIRES BIOAPPLICATIONS BY AG-ASSISTED ELECTROLESS ETCHING METHOD (53-57) // Евразийский Союз Ученых. Химические науки. 2018/12/10; 56(1):53-57.



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