Управление фотостабильностью полупроводниковых квантовых точек с помощью наночастиц золота

Установлено влияние наночастиц золота различной формы (наносферы и наностержни) на фотостабильность квантовых точек InP/ZnSe/ZnSeS/ZnS и CdSe/ZnCdS/ZnS со структурой типа «ядро/оболочка». Наносферы золота повышают фотостабильность квантовых точек InP/ZnSe/ZnSeS/ZnS при возбуждении излучением синего диапазона за счет уменьшения среднего времени жизни возбужденного состояния квантовых точек и, соответственно, снижения вероятности Оже-процессов. Увеличение среднего времени жизни возбужденного состояния квантовых точек CdSe/ZnCdS/ZnS в комплексах с наностержнями золота приводит к снижению фотостабильности при возбуждении на 449 и 532 нм.

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