ТРЕКТІ ТЕМПЛЭЙТТЕРДЕ ОРТОРОМБТЫ ҚАЛАЙЫ НАНОСЫМДАРЫН СИНТЕЗДЕУ

Берілген жұмыста даярланған ионды-тректі темплэйттерге SiO₂/Si-p электрохимиялық тұндыру әдісімен орторомбты SnO₂ наносымдарын (НС) синтездеу жүргізілді. SiO₂/Si құрылымындағы тректердің түзілуі ДЦ-60 циклотронында энергиясы 200 МэВ (Ф = 10⁸ см⁻²) Xe жылдам ауыр иондарымен сәулелену арқылы жүзеге асырылды. Нанокеуекті шаблондарды қалыптастыру үшін фтор қышқылының (HF) 4% сулы ерітіндісі пайдаланылды. Тректік темплэйтке SnO₂ электрохимиялық тұндыру (ЭХТ) процесі бөлме температурасында жүргізілді, электродтардағы кернеу 1,75 В болды. ЭХТ процесі кезінде келесі химиялық құрамы бар электролит пайдаланылды: 6 г/л SnCl₂ (Sigma-Aldrich) – 25 мл H₂O – 2 мл HCl («хт»; 35%; ρ = 1,1740 г/см³). ЭХТ процесінен кейін, үлгілердің беттік морфологиясы Zeiss Crossbeam 540 қос сәулелі сканерлеуші микроскоп көмегімен зерттелді. Қалайы диоксидімен толтырылған нанокеуектері бар наноэтероқұрылымдардың (SnO₂/SiO₂/Si) фазалық құрамы мен кристаллографиялық құрылымы Rigaku SmartLab көп функционалды рентгендік дифрактометрде рентгендік дифракция (XRD) көмегімен зерттелді. CM2203 спектрофлуориметрін (Solar) қолдану арқылы 320-600 нм аралығындағы оптикалық диапазонда фотолюминесценция спектрлері өлшенді. Синтезделген қалайы диоксиді наносымдарының электрлік сипаттамалары Ametek фирмасының VersaStat 3 потенциостатының көмегімен зерттелді.

Нәтижесінде SnO₂ наносымдарының орторомбты кристалдық құрылымы бар SnO₂-НС/SiO₂/Si наногетероқұрылымы алынды. Толқын ұзындығы 240 нм болатын жарықпен қоздырылған фотолюминесценция төмен қарқындылыққа ие, ол негізінен оттегінің бос орындары мен интерстициалды қалайы немесе зақымдалған байланысы бар қалайы сияқты ақауларға байланысты пайда болады. Вольт-амперлік сипаттаманың зерттеуі бойынша, осындай жолмен алынған SnO₂-НС/SiO₂/Si наногетероқұрылымында p-n ауысымы бар массивтердің болатының көрсетті.

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